Climate and average weather in Guiyang
In Guiyang, the summers are humid, warm, wet, and mostly cloudy and the winters are cold, snowy, and mostly cloudy.
Over the course of the year, the temperature in Guiyang typically varies from 2°C to 27°C, and is rarely below -2°C or above 31°C. August is the hottest month of the year, while January is the coldest.
Based on the travel score, the best times of year to visit Guiyang for warm-weather activities are from early May to late May and late July to early November.
- Hottest
- Aug
- 27°
- Coldest
- Jan
- 2°
- Wettest
- Jun
- 239 mm
- Driest
- Dec
- 48 mm
- Rain / yr
- 1392 mm
- 189 wet days
- Daylight
- 10.3–13.7 h
- shortest–longest
- Elevation
- 1,087 m
- 26.6°N
- Clearest
- Sep
- 69% cloud
Guiyang is capital of Guizhou province, China.
- Air quality
- High
- PM2.5 31.7 µg/m³ · 2018
- Density
- 378/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Guiyang 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 late July to early November.
Temperature through the year
Daily average highs and lows in Guiyang, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.7 months, from May 7 to September 26, with daily high temperatures above 23°C. The hottest month of the year in Guiyang is August, with an average high of 27°C and low of 20°C.
The cool season lasts 2.6 months, from December 4 to February 20, with daily high temperatures below 11°C. The coldest month of the year in Guiyang is January, with an average low of 2°C and high of 8°C.
Days typically run about 7°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 11 | 15 | 20 | 23 | 25 | 27 | 27 | 24 | 19 | 15 | 10 |
| Avg low (°C) | 2 | 4 | 8 | 12 | 16 | 19 | 21 | 20 | 17 | 13 | 9 | 4 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 8 | 2 |
| Feb | 11 | 4 |
| Mar | 15 | 8 |
| Apr | 20 | 12 |
| May | 23 | 16 |
| Jun | 25 | 19 |
| Jul | 27 | 21 |
| Aug | 27 | 20 |
| Sep | 24 | 17 |
| Oct | 19 | 13 |
| Nov | 15 | 9 |
| Dec | 10 | 4 |
How hot and cold Guiyang 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 coldest nights, wind chill pulls the feels-like down to about -1°C (around January 21), with roughly 29 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) | 8 | 11 | 15 | 20 | 23 | 25 | 28 | 28 | 24 | 19 | 15 | 10 |
| Air high (°C) | 8 | 11 | 15 | 20 | 23 | 25 | 27 | 27 | 24 | 19 | 15 | 10 |
| Feels-like low (°C) | -1 | 1 | 6 | 12 | 16 | 19 | 21 | 20 | 17 | 13 | 7 | 1 |
| Air low (°C) | 2 | 4 | 8 | 12 | 16 | 19 | 21 | 20 | 17 | 13 | 9 | 4 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 8 | 8 | -1 | 2 |
| Feb | 11 | 11 | 1 | 4 |
| Mar | 15 | 15 | 6 | 8 |
| Apr | 20 | 20 | 12 | 12 |
| May | 23 | 23 | 16 | 16 |
| Jun | 25 | 25 | 19 | 19 |
| Jul | 28 | 27 | 21 | 21 |
| Aug | 28 | 27 | 20 | 20 |
| Sep | 24 | 24 | 17 | 17 |
| Oct | 19 | 19 | 13 | 13 |
| Nov | 15 | 15 | 7 | 9 |
| Dec | 10 | 10 | 1 | 4 |
Average hourly temperature in Guiyang
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 August afternoons, near 27°C, and coldest before dawn in January, near 2°C.
Guiyang 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 | 8° / 2° | 67 | 14.4 | 3.7 | 10.5 | 1.1 |
| Feb | 11° / 4° | 60 | 13.7 | 1.8 | 11.1 | 2.2 |
| Mar | 15° / 8° | 97 | 19 | 0.3 | 11.8 | 3.5 |
| Apr | 20° / 12° | 130 | 19 | 0.1 | 12.6 | 4.7 |
| May | 23° / 16° | 191 | 19.3 | 0 | 13.3 | 5.2 |
| Jun | 25° / 19° | 239 | 20.7 | 0 | 13.6 | 4.8 |
| Jul | 27° / 21° | 168 | 17.7 | 0 | 13.5 | 5.0 |
| Aug | 27° / 20° | 124 | 15.7 | 0 | 12.9 | 5.4 |
| Sep | 24° / 17° | 101 | 12.4 | 0 | 12.2 | 6.2 |
| Oct | 19° / 13° | 105 | 14.1 | 0 | 11.4 | 5.4 |
| Nov | 15° / 9° | 63 | 11.5 | 0.1 | 10.7 | 4.3 |
| Dec | 10° / 4° | 48 | 11.6 | 1.2 | 10.4 | 2.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Guiyang gets about 1392 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.
The wetter season lasts 5.7 months, from around Feb 23 to Aug 16, peaking in June at about 70% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Nov 7.
June is the wettest month by volume, with 239 mm over about 21 wet days; December is the driest, with 48 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 (%) | 47 | 49 | 61 | 63 | 63 | 67 | 58 | 51 | 42 | 44 | 39 | 39 |
| Rain days | 14 | 14 | 19 | 19 | 19 | 21 | 18 | 16 | 12 | 14 | 12 | 12 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 47 | 14 |
| Feb | 49 | 14 |
| Mar | 61 | 19 |
| Apr | 63 | 19 |
| May | 63 | 19 |
| Jun | 67 | 21 |
| Jul | 58 | 18 |
| Aug | 51 | 16 |
| Sep | 42 | 12 |
| Oct | 44 | 14 |
| Nov | 39 | 12 |
| Dec | 39 | 12 |
Monthly rainfall
Over a full year, Guiyang collects about 1392 mm of rain across 189 wet days — roughly 116 mm in an average month.
It doesn’t fall evenly. June is the wettest month with 239 mm, while December is the driest at just 48 mm. The three wettest months alone bring about 43% 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) | 67 | 60 | 97 | 130 | 191 | 239 | 168 | 124 | 101 | 105 | 63 | 48 |
| Rain days | 14 | 14 | 19 | 19 | 19 | 21 | 18 | 16 | 12 | 14 | 12 | 12 |
| Snow days | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 67 | 14 | 4 |
| Feb | 60 | 14 | 2 |
| Mar | 97 | 19 | 0 |
| Apr | 130 | 19 | 0 |
| May | 191 | 19 | 0 |
| Jun | 239 | 21 | 0 |
| Jul | 168 | 18 | 0 |
| Aug | 124 | 16 | 0 |
| Sep | 101 | 12 | 0 |
| Oct | 105 | 14 | 0 |
| Nov | 63 | 12 | 0 |
| Dec | 48 | 12 | 1 |
Snow in Guiyang
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.
Guiyang averages about 7 snowy days a year. Snow season runs roughly Dec 6 to Mar 11 — about 3.2 months.
January is snowiest, with roughly 3 days of snow and an estimated 14 cm of snowfall. Over the year that adds up to an estimated 26 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Snowfall (cm) | 14 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 4 | 14 |
| Feb | 2 | 6 |
| Mar | 0 | 1 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 1 | 4 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Guiyang, 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 July 17 and lasts for 2.9 months, ending around October 12. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 32% of the time on average.
The cloudier part of the year begins around May 23 and lasts for 1.8 months, ending around July 16. The cloudiest month is June, when it is overcast or mostly cloudy 87% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 14 | 17 | 19 | 24 | 23 | 13 | 22 | 31 | 32 | 24 | 25 | 20 |
| Cloudier (%) | 86 | 83 | 81 | 76 | 77 | 87 | 78 | 69 | 68 | 76 | 75 | 80 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 14 | 86 |
| Feb | 17 | 83 |
| Mar | 19 | 81 |
| Apr | 24 | 76 |
| May | 23 | 77 |
| Jun | 13 | 87 |
| Jul | 22 | 78 |
| Aug | 31 | 69 |
| Sep | 32 | 68 |
| Oct | 24 | 76 |
| Nov | 25 | 75 |
| Dec | 20 | 80 |
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 14, brings about 13 h 42 min of light; the shortest, around December 14, only 10 h 18 min — a swing of roughly 3 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.5 | 11.1 | 11.8 | 12.6 | 13.3 | 13.6 | 13.5 | 12.9 | 12.2 | 11.4 | 10.7 | 10.4 |
| Sunrise (AM) | 7:47 | 7:36 | 7:09 | 6:35 | 6:10 | 6:04 | 6:13 | 6:29 | 6:43 | 6:57 | 7:18 | 7:39 |
| Sunset (PM) | 6:17 | 6:40 | 6:57 | 7:12 | 7:28 | 7:43 | 7:44 | 7:26 | 6:52 | 6:19 | 5:59 | 5:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 10.5 | 7:47 | 6:17 |
| Feb | 11.1 | 7:36 | 6:40 |
| Mar | 11.8 | 7:09 | 6:57 |
| Apr | 12.6 | 6:35 | 7:12 |
| May | 13.3 | 6:10 | 7:28 |
| Jun | 13.6 | 6:04 | 7:43 |
| Jul | 13.5 | 6:13 | 7:44 |
| Aug | 12.9 | 6:29 | 7:26 |
| Sep | 12.2 | 6:43 | 6:52 |
| Oct | 11.4 | 6:57 | 6:19 |
| Nov | 10.7 | 7:18 | 5:59 |
| Dec | 10.4 | 7:39 | 5:59 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Guiyang averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 6 days.
The sunnier stretch runs 4.1 months, from around Jul 25 to Nov 26. The sunniest month is November, with roughly 5 sunny days (gloomy).
The greyest month is June, down near 2 sunny days — about 68% fewer than the November peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 3 | 3 | 4 | 4 | 3 | 2 | 3 | 5 | 6 | 5 | 5 | 4 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 3 | Gloomy |
| Feb | 3 | Gloomy |
| Mar | 4 | Gloomy |
| Apr | 4 | Gloomy |
| May | 3 | Gloomy |
| Jun | 2 | Gloomy |
| Jul | 3 | Gloomy |
| Aug | 5 | Gloomy |
| Sep | 6 | Gloomy |
| Oct | 5 | Gloomy |
| Nov | 5 | Gloomy |
| Dec | 4 | Gloomy |
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 Guiyang, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 5.1 months, from around April 30 to September 30. 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 October 1 to April 29, and March is the most comfortable month — the air is dry or comfortable 99% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 99 | 87 | 54 | 20 | 2 | 0 | 0 | 15 | 53 | 85 | 100 |
| Comfortable (%) | 0 | 1 | 12 | 27 | 30 | 11 | 1 | 5 | 23 | 29 | 13 | 0 |
| Humid (%) | 0 | 0 | 1 | 17 | 32 | 32 | 11 | 21 | 36 | 15 | 2 | 0 |
| Muggy (%) | 0 | 0 | 0 | 2 | 17 | 50 | 79 | 69 | 25 | 3 | 0 | 0 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 5 | 9 | 3 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 | 0 |
| Feb | 99 | 1 | 0 | 0 | 0 |
| Mar | 87 | 12 | 1 | 0 | 0 |
| Apr | 54 | 27 | 17 | 2 | 0 |
| May | 20 | 30 | 32 | 17 | 0 |
| Jun | 2 | 11 | 32 | 50 | 5 |
| Jul | 0 | 1 | 11 | 79 | 9 |
| Aug | 0 | 5 | 21 | 69 | 3 |
| Sep | 15 | 23 | 36 | 25 | 0 |
| Oct | 53 | 29 | 15 | 3 | 0 |
| Nov | 85 | 13 | 2 | 0 | 0 |
| Dec | 100 | 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.
Wind in Guiyang is steady company: average speeds sit near 11 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 12 | 12 | 12 | 12 | 11 | 12 | 11 | 11 | 10 | 11 | 10 |
| Feels | calm | calm | light breeze | light breeze | calm | calm | light breeze | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 10 | calm |
| Feb | 12 | calm |
| Mar | 12 | light breeze |
| Apr | 12 | light breeze |
| May | 12 | calm |
| Jun | 11 | calm |
| Jul | 12 | light breeze |
| Aug | 11 | calm |
| Sep | 11 | calm |
| Oct | 10 | calm |
| Nov | 11 | calm |
| Dec | 10 | calm |
Hazard calendar for Guiyang
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Guiyang's rainy season runs April–August, when most of the year's rain falls.
Best time to visit Guiyang
To characterize how pleasant the weather is in Guiyang throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late July, Guiyang is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
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 Guiyang for general outdoor tourist activities run from early May to late May and again from late July to early November, with a peak score in the third week of September.
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) | 1.1 | 2.2 | 3.5 | 4.7 | 5.1 | 4.8 | 5.0 | 5.4 | 6.2 | 5.4 | 4.2 | 2.1 |
| Rating | poor | poor | poor | fair | fair | fair | fair | fair | good | fair | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 1.1 | poor |
| Feb | 2.2 | poor |
| Mar | 3.5 | poor |
| Apr | 4.7 | fair |
| May | 5.1 | fair |
| Jun | 4.8 | fair |
| Jul | 5.0 | fair |
| Aug | 5.4 | fair |
| Sep | 6.2 | good |
| Oct | 5.4 | fair |
| Nov | 4.2 | fair |
| Dec | 2.1 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Guiyang for hot-weather activities is from late June to late September, with a peak score in the last week of August.
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 Guiyang, 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 August (highs near 27°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 8°C), pack a warm layer, a heavy coat and rain gear.
In August, Guiyang sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.
UV index (midday) in Guiyang 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 Guiyang peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 9 | 9 | 10 | 12 | 13 | 11 | 10 | 8 | 6 | 5 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Average hourly UV index in Guiyang
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 July the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 6.5 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) | 5 | 6 | 7 | 7.5 | 8 | 8.5 | 9 | 8 | 7.5 | 6.5 | 5.5 | 4.5 |
| UV ≥ 6 (h/day) | 0 | 3 | 4.5 | 4.5 | 5.5 | 6.5 | 6.5 | 5.5 | 5 | 3.5 | 0.5 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 5 | 0 |
| Feb | 6 | 3 |
| Mar | 7 | 4.5 |
| Apr | 7.5 | 4.5 |
| May | 8 | 5.5 |
| Jun | 8.5 | 6.5 |
| Jul | 9 | 6.5 |
| Aug | 8 | 5.5 |
| Sep | 7.5 | 5 |
| Oct | 6.5 | 3.5 |
| Nov | 5.5 | 0.5 |
| Dec | 4.5 | 0 |
Air quality in Guiyang 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 Guiyang is worst in March — around 37 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.
Seasonal pattern from CAMS reanalysis, scaled to Guiyang's WHO annual average of 31.7 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 32 | 35 | 37 | 35 | 32 | 27 | 24 | 28 | 30 | 31 | 34 | 34 |
| Level | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 32 | Moderate |
| Feb | 35 | Poor |
| Mar | 37 | Poor |
| Apr | 35 | Poor |
| May | 32 | Moderate |
| Jun | 27 | Moderate |
| Jul | 24 | Moderate |
| Aug | 28 | Moderate |
| Sep | 30 | Moderate |
| Oct | 31 | Moderate |
| Nov | 34 | Moderate |
| Dec | 34 | Moderate |
Growing season
Guiyang is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about February 23 to December 14 (295 days); outside that window a hard frost is an occasional risk.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 76 | 85 | 97 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 89 |
| Frost nights | 31 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 76 | 31 |
| Feb | 85 | 20 |
| Mar | 97 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 99 | 0 |
| Dec | 89 | 16 |
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. Guiyang banks about 2,300 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 | 46 | 186 | 294 | 358 | 427 | 420 | 320 | 191 | 58 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 46 |
| Apr | 186 |
| May | 294 |
| Jun | 358 |
| Jul | 427 |
| Aug | 420 |
| Sep | 320 |
| Oct | 191 |
| Nov | 58 |
| 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.
Guiyang receives about 3.2 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.8 and 5.0 kWh/m².
The brighter stretch of the year lasts 5.9 months, from around Apr 2 to Sep 28. The brightest month is July, averaging about 4.7 kWh/m² (bright).
The dimmest month is January, down near 1.9 kWh/m² — roughly 59% less than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 1.9 | 2.3 | 2.9 | 3.7 | 4.0 | 4.0 | 4.7 | 4.7 | 3.8 | 2.5 | 2.2 | 1.9 |
| Level | Dim | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 1.9 | Dim |
| Feb | 2.3 | Moderate |
| Mar | 2.9 | Moderate |
| Apr | 3.7 | Moderate |
| May | 4.0 | Bright |
| Jun | 4.0 | Bright |
| Jul | 4.7 | Bright |
| Aug | 4.7 | Bright |
| Sep | 3.8 | Moderate |
| Oct | 2.5 | Moderate |
| Nov | 2.2 | Moderate |
| Dec | 1.9 | Dim |
Where is Guiyang?
Guiyang sits at 26.6°N, 106.7°E, 1,087 m above sea level, in China. The nearest listed city is Fenghuang, 322 km away.
What Guiyang looks like
Topography around Guiyang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guiyang.
Within 3 km, the terrain around Guiyang has only modest variations in elevation — a maximum elevation change of 243 m around an average of 1,105 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 487 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,342 m.
The land around Guiyang is covered by artificial surfaces (68%) and trees (25%) within 3 km, trees (46%) and artificial surfaces (26%) within 16 km, and trees (68%) 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 Guiyang (26.5833°, 106.7167°, elevation 1,087 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).