Climate and average weather in Zhengzhou
In Zhengzhou, the summers are muggy, hot, showery, and partly cloudy and the winters are cold, snowy, and mostly clear.
Over the course of the year, the temperature in Zhengzhou typically varies from -3°C to 32°C, and is rarely below -7°C or above 36°C. July is the hottest month of the year, while January is the coldest.
Based on the travel score, the best times of year to visit Zhengzhou for warm-weather activities are from late March to late May and early September to early November.
- Hottest
- Jul
- 32°
- Coldest
- Jan
- -3°
- Wettest
- Jul
- 182 mm
- Driest
- Jan
- 10 mm
- Rain / yr
- 722 mm
- 76 wet days
- Daylight
- 9.7–14.3 h
- shortest–longest
- Elevation
- 104 m
- 34.8°N
- Clearest
- Dec
- 42% cloud
Zhengzhou is capital of Henan province, China.
- Air quality
- Severe
- PM2.5 68.6 µg/m³ · 2018
- Density
- 562/km²
- people per km²
- Founded
- ~1550 BCE
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Zhengzhou weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early September to early November.
Temperature through the year
Daily average highs and lows in Zhengzhou, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.8 months, from May 3 to September 24, with daily high temperatures above 25°C. The hottest month of the year in Zhengzhou is July, with an average high of 32°C and low of 24°C.
The cool season lasts 2.8 months, from November 28 to February 20, with daily high temperatures below 10°C. The coldest month of the year in Zhengzhou is January, with an average low of -3°C and high of 6°C.
Days typically run about 9°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 9 | 15 | 22 | 27 | 32 | 32 | 30 | 26 | 21 | 14 | 8 |
| Avg low (°C) | -3 | 0 | 5 | 11 | 17 | 22 | 24 | 23 | 18 | 12 | 5 | -1 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 6 | -3 |
| Feb | 9 | 0 |
| Mar | 15 | 5 |
| Apr | 22 | 11 |
| May | 27 | 17 |
| Jun | 32 | 22 |
| Jul | 32 | 24 |
| Aug | 30 | 23 |
| Sep | 26 | 18 |
| Oct | 21 | 12 |
| Nov | 14 | 5 |
| Dec | 8 | -1 |
How hot and cold Zhengzhou really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Zhengzhou feels like about 37°C (around July 29). About 67 days a year carry some heat stress, peaking in July.
On the coldest nights, wind chill pulls the feels-like down to about -7°C (around January 18), with roughly 100 freezing days a year (feels-like at or below 0°C), worst in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 6 | 9 | 15 | 22 | 27 | 32 | 36 | 34 | 27 | 21 | 14 | 8 |
| Air high (°C) | 6 | 9 | 15 | 22 | 27 | 32 | 32 | 30 | 26 | 21 | 14 | 8 |
| Feels-like low (°C) | -7 | -3 | 3 | 11 | 17 | 21 | 24 | 23 | 18 | 12 | 3 | -4 |
| Air low (°C) | -3 | 0 | 5 | 11 | 17 | 22 | 24 | 23 | 18 | 12 | 5 | -1 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 6 | 6 | -7 | -3 |
| Feb | 9 | 9 | -3 | 0 |
| Mar | 15 | 15 | 3 | 5 |
| Apr | 22 | 22 | 11 | 11 |
| May | 27 | 27 | 17 | 17 |
| Jun | 32 | 32 | 21 | 22 |
| Jul | 36 | 32 | 24 | 24 |
| Aug | 34 | 30 | 23 | 23 |
| Sep | 27 | 26 | 18 | 18 |
| Oct | 21 | 21 | 12 | 12 |
| Nov | 14 | 14 | 3 | 5 |
| Dec | 8 | 8 | -4 | -1 |
Average hourly temperature in Zhengzhou
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 32°C, and coldest before dawn in January, near -3°C.
Zhengzhou weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 6° / -3° | 10 | 2.3 | 1.9 | 9.9 | 0.3 |
| Feb | 9° / -0° | 15 | 2.8 | 1.5 | 10.7 | 2.3 |
| Mar | 15° / 5° | 25 | 4.5 | 0.7 | 11.7 | 5.3 |
| Apr | 22° / 11° | 36 | 4.8 | 0.1 | 12.8 | 7.3 |
| May | 27° / 17° | 58 | 6.3 | 0 | 13.8 | 6.6 |
| Jun | 32° / 22° | 86 | 7.3 | 0 | 14.3 | 4.4 |
| Jul | 32° / 24° | 182 | 14.3 | 0 | 14.1 | 3.7 |
| Aug | 30° / 23° | 146 | 13.8 | 0 | 13.3 | 4.5 |
| Sep | 26° / 18° | 83 | 8.6 | 0 | 12.2 | 6.7 |
| Oct | 21° / 12° | 42 | 4.9 | 0 | 11.1 | 7.4 |
| Nov | 14° / 5° | 30 | 4.6 | 0.8 | 10.2 | 4.6 |
| Dec | 8° / -1° | 10 | 2.3 | 1.3 | 9.7 | 1.5 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Zhengzhou gets about 722 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 3.7 months, from around Jun 11 to Oct 1, peaking in July at about 51% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 17.
July is the wettest month by volume, with 182 mm over about 14 wet days; January is the driest, with 10 mm. Some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 8 | 10 | 15 | 16 | 20 | 25 | 46 | 44 | 29 | 16 | 15 | 7 |
| Rain days | 2 | 3 | 5 | 5 | 6 | 7 | 14 | 14 | 9 | 5 | 5 | 2 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 8 | 2 |
| Feb | 10 | 3 |
| Mar | 15 | 5 |
| Apr | 16 | 5 |
| May | 20 | 6 |
| Jun | 25 | 7 |
| Jul | 46 | 14 |
| Aug | 44 | 14 |
| Sep | 29 | 9 |
| Oct | 16 | 5 |
| Nov | 15 | 5 |
| Dec | 7 | 2 |
Monthly rainfall
Over a full year, Zhengzhou collects about 722 mm of rain across 76 wet days — roughly 60 mm in an average month.
It doesn’t fall evenly. July is the wettest month with 182 mm, while January is the driest at just 10 mm. The three wettest months alone bring about 57% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 10 | 15 | 25 | 36 | 58 | 86 | 182 | 146 | 83 | 42 | 30 | 10 |
| Rain days | 2 | 3 | 5 | 5 | 6 | 7 | 14 | 14 | 9 | 5 | 5 | 2 |
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 10 | 2 | 2 |
| Feb | 15 | 3 | 2 |
| Mar | 25 | 5 | 1 |
| Apr | 36 | 5 | 0 |
| May | 58 | 6 | 0 |
| Jun | 86 | 7 | 0 |
| Jul | 182 | 14 | 0 |
| Aug | 146 | 14 | 0 |
| Sep | 83 | 9 | 0 |
| Oct | 42 | 5 | 0 |
| Nov | 30 | 5 | 1 |
| Dec | 10 | 2 | 1 |
Snow in Zhengzhou
Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.
Zhengzhou averages about 6 snowy days a year. Snow season runs roughly Nov 6 to Mar 18 — about 4.4 months.
January is snowiest, with roughly 1.9 days of snow and an estimated 9 cm of snowfall. Over the year that adds up to an estimated 32 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| Snowfall (cm) | 9 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 2 | 9 |
| Feb | 2 | 8 |
| Mar | 1 | 2 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 1 | 8 |
| Dec | 1 | 5 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Zhengzhou, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.
The clearer part of the year begins around October 17 and lasts for 4.2 months, ending around February 21. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 62% of the time on average.
The cloudier part of the year begins around February 22 and lasts for 7.8 months, ending around October 16. The cloudiest month is July, when it is overcast or mostly cloudy 60% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 57 | 54 | 46 | 46 | 43 | 45 | 40 | 46 | 47 | 52 | 60 | 62 |
| Cloudier (%) | 43 | 46 | 54 | 54 | 57 | 55 | 60 | 54 | 53 | 48 | 40 | 38 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 57 | 43 |
| Feb | 54 | 46 |
| Mar | 46 | 54 |
| Apr | 46 | 54 |
| May | 43 | 57 |
| Jun | 45 | 55 |
| Jul | 40 | 60 |
| Aug | 46 | 54 |
| Sep | 47 | 53 |
| Oct | 52 | 48 |
| Nov | 60 | 40 |
| Dec | 62 | 38 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 8, brings about 14 h 18 min of light; the shortest, around January 1, only 9 h 42 min — a swing of roughly 4 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 10.7 | 11.7 | 12.8 | 13.8 | 14.3 | 14.1 | 13.3 | 12.2 | 11.1 | 10.2 | 9.7 |
| Sunrise (AM) | 7:37 | 7:19 | 6:43 | 5:59 | 5:27 | 5:16 | 5:27 | 5:50 | 6:13 | 6:37 | 7:06 | 7:31 |
| Sunset (PM) | 5:32 | 6:01 | 6:27 | 6:52 | 7:16 | 7:35 | 7:35 | 7:09 | 6:26 | 5:44 | 5:15 | 5:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.9 | 7:37 | 5:32 |
| Feb | 10.7 | 7:19 | 6:01 |
| Mar | 11.7 | 6:43 | 6:27 |
| Apr | 12.8 | 5:59 | 6:52 |
| May | 13.8 | 5:27 | 7:16 |
| Jun | 14.3 | 5:16 | 7:35 |
| Jul | 14.1 | 5:27 | 7:35 |
| Aug | 13.3 | 5:50 | 7:09 |
| Sep | 12.2 | 6:13 | 6:26 |
| Oct | 11.1 | 6:37 | 5:44 |
| Nov | 10.2 | 7:06 | 5:15 |
| Dec | 9.7 | 7:31 | 5:12 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Zhengzhou averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 16 days.
The sunnier stretch runs 4.3 months, from around Oct 12 to Feb 20. The sunniest month is December, with roughly 16 sunny days (bright).
The greyest month is July, down near 7 sunny days — about 53% fewer than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 14 | 12 | 11 | 10 | 9 | 9 | 7 | 10 | 11 | 13 | 15 | 16 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Gloomy | Mixed | Mixed | Mixed | Mixed | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 14 | Mixed |
| Feb | 12 | Mixed |
| Mar | 11 | Mixed |
| Apr | 10 | Mixed |
| May | 9 | Mixed |
| Jun | 9 | Mixed |
| Jul | 7 | Gloomy |
| Aug | 10 | Mixed |
| Sep | 11 | Mixed |
| Oct | 13 | Mixed |
| Nov | 15 | Mixed |
| Dec | 16 | Bright |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Zhengzhou, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 4.1 months, from around May 26 to September 27. The muggiest month is July, when the air feels humid, muggy or worse about 99% of the time.
The most comfortable stretch runs from around September 28 to May 25, and March is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 86 | 51 | 12 | 0 | 1 | 21 | 80 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 11 | 28 | 20 | 1 | 3 | 24 | 14 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 3 | 17 | 28 | 5 | 10 | 29 | 5 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 1 | 4 | 26 | 25 | 27 | 20 | 1 | 0 | 0 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 12 | 40 | 36 | 6 | 0 | 0 | 0 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 2 | 28 | 23 | 1 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 | 0 | 0 |
| Apr | 86 | 11 | 3 | 1 | 0 | 0 |
| May | 51 | 28 | 17 | 4 | 0 | 0 |
| Jun | 12 | 20 | 28 | 26 | 12 | 2 |
| Jul | 0 | 1 | 5 | 25 | 40 | 28 |
| Aug | 1 | 3 | 10 | 27 | 36 | 23 |
| Sep | 21 | 24 | 29 | 20 | 6 | 1 |
| Oct | 80 | 14 | 5 | 1 | 0 | 0 |
| Nov | 100 | 0 | 0 | 0 | 0 | 0 |
| Dec | 100 | 0 | 0 | 0 | 0 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Zhengzhou is typically calm, near 10 km/h, and varies little with the seasons.
The windier part of the year lasts 4.2 months, from around Feb 12 to Jun 20. The windiest month is April, averaging about 11 km/h (calm).
The calmer part of the year runs from around Jun 21 to Nov 1, with August the calmest month at about 8 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 9 | 9 | 10 | 10 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 9 | calm |
| Feb | 10 | calm |
| Mar | 11 | calm |
| Apr | 11 | calm |
| May | 11 | calm |
| Jun | 10 | calm |
| Jul | 9 | calm |
| Aug | 8 | calm |
| Sep | 9 | calm |
| Oct | 9 | calm |
| Nov | 10 | calm |
| Dec | 10 | calm |
Hazard calendar for Zhengzhou
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Zhengzhou's rainy season runs June–September, when most of the year's rain falls.
Zhengzhou sees seasonal dust haze (April–May), heaviest in May.
Best time to visit Zhengzhou
To characterize how pleasant the weather is in Zhengzhou throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late October, Zhengzhou is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Zhengzhou for general outdoor tourist activities run from late March to late May and again from early September to early November, with a peak score in the last week of April.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 0.4 | 2.3 | 5.3 | 7.3 | 6.5 | 4.4 | 3.7 | 4.5 | 6.7 | 7.4 | 4.6 | 1.5 |
| Rating | poor | poor | fair | good | good | fair | fair | fair | good | good | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 0.4 | poor |
| Feb | 2.3 | poor |
| Mar | 5.3 | fair |
| Apr | 7.3 | good |
| May | 6.5 | good |
| Jun | 4.4 | fair |
| Jul | 3.7 | fair |
| Aug | 4.5 | fair |
| Sep | 6.7 | good |
| Oct | 7.4 | good |
| Nov | 4.6 | fair |
| Dec | 1.5 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Zhengzhou for hot-weather activities run from late April to early July and again from mid August to early October, with a peak score in the last week of May.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Zhengzhou, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around July (highs near 32°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 6°C), pack a warm layer and a heavy coat.
In July, Zhengzhou sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.
UV index (midday) in Zhengzhou by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Zhengzhou peaks around May 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 5 | 9 | 8 | 8 | 7 | 7 | 4 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | High | High | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 5 | High |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Average hourly UV index in Zhengzhou
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in May the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 0 | 2.5 | 5.5 | 6 | 8 | 8 | 8 | 7 | 6.5 | 3.5 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 0 | 5 | 4.5 | 4.5 | 2.5 | 2.5 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 2.5 | 0 |
| Mar | 5.5 | 0 |
| Apr | 6 | 0 |
| May | 8 | 5 |
| Jun | 8 | 4.5 |
| Jul | 8 | 4.5 |
| Aug | 7 | 2.5 |
| Sep | 6.5 | 2.5 |
| Oct | 3.5 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Air quality in Zhengzhou by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Zhengzhou is worst in January — around 105 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (July, 40 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Zhengzhou's WHO annual average of 68.6 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 105 | 87 | 76 | 64 | 53 | 47 | 40 | 45 | 59 | 74 | 81 | 93 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 105 | Unhealthy |
| Feb | 87 | Unhealthy |
| Mar | 76 | Unhealthy |
| Apr | 64 | Unhealthy |
| May | 53 | Poor |
| Jun | 47 | Poor |
| Jul | 40 | Poor |
| Aug | 45 | Poor |
| Sep | 59 | Unhealthy |
| Oct | 74 | Unhealthy |
| Nov | 81 | Unhealthy |
| Dec | 93 | Unhealthy |
Growing season
The growing season in Zhengzhou typically lasts about 296 days, from around February 16 to December 8 — the span where a frost-free day is more likely than not. It is reliably frost-free from March 12 to November 17.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 14 | 48 | 92 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 89 | 39 |
| Frost nights | 31 | 28 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 14 | 31 |
| Feb | 48 | 28 |
| Mar | 92 | 10 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 89 | 14 |
| Dec | 39 | 31 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Zhengzhou banks about 2,749 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 31 | 199 | 376 | 495 | 550 | 508 | 361 | 206 | 22 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 31 |
| Apr | 199 |
| May | 376 |
| Jun | 495 |
| Jul | 550 |
| Aug | 508 |
| Sep | 361 |
| Oct | 206 |
| Nov | 22 |
| Dec | 0 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Zhengzhou receives about 4.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.6 and 6.1 kWh/m².
The brighter stretch of the year lasts 6.0 months, from around Mar 8 to Sep 7. The brightest month is June, averaging about 6.0 kWh/m² (bright).
The dimmest month is December, down near 2.6 kWh/m² — roughly 57% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.9 | 3.7 | 4.6 | 5.5 | 5.8 | 6.0 | 5.2 | 4.7 | 4.2 | 3.6 | 2.8 | 2.6 |
| Level | Moderate | Moderate | Bright | Bright | Bright | Intense | Bright | Bright | Bright | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 2.9 | Moderate |
| Feb | 3.7 | Moderate |
| Mar | 4.6 | Bright |
| Apr | 5.5 | Bright |
| May | 5.8 | Bright |
| Jun | 6.0 | Intense |
| Jul | 5.2 | Bright |
| Aug | 4.7 | Bright |
| Sep | 4.2 | Bright |
| Oct | 3.6 | Moderate |
| Nov | 2.8 | Moderate |
| Dec | 2.6 | Moderate |
Where is Zhengzhou?
Zhengzhou sits at 34.8°N, 113.6°E, 104 m above sea level, in China. The nearest listed city is Songyang, 66 km away.
What Zhengzhou looks like
Topography around Zhengzhou
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zhengzhou.
Within 3 km, the terrain around Zhengzhou has only modest variations in elevation — a maximum elevation change of 37 m around an average of 105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 205 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,415 m.
The land around Zhengzhou is covered by artificial surfaces (87%) within 3 km, artificial surfaces (54%) within 16 km, and cropland (62%) within 80 km.
China travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / I
- 220 V · 50 Hz
- Prices
- ≈ 47% of US
- price level, 2025
- GDP per capita
- $13,862
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Homicide rate
- 0.5
- per 100k, 2020
- Road deaths
- 17.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 464
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Zhengzhou (34.7578°, 113.6486°, elevation 104 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).