Climate and average weather in Zeya
In Zeya, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and mostly clear.
Over the course of the year, the temperature in Zeya typically varies from -30°C to 24°C, and is rarely below -38°C or above 30°C. July is the hottest month of the year, while December is the coldest.
Based on the travel score, the best time of year to visit Zeya for warm-weather activities is from late May to early September.
- Hottest
- Jul
- 24°
- Coldest
- Dec
- -29°
- Wettest
- Jul
- 146 mm
- Driest
- Jan
- 3 mm
- Rain / yr
- 569 mm
- 79 wet days
- Daylight
- 7.2–16.8 h
- shortest–longest
- Elevation
- 221 m
- 53.7°N
- Clearest
- Feb
- 45% cloud
Zeya is town in Russia.
- Density
- 692/km²
- people per km²
- Founded
- 1879
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Zeya 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 May to early September.
Temperature through the year
Daily average highs and lows in Zeya, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.4 months, from May 13 to September 22, with daily high temperatures above 13°C. The hottest month of the year in Zeya is July, with an average high of 24°C and low of 15°C.
The cool season lasts 3.3 months, from November 18 to February 24, with daily high temperatures below -12°C. The coldest month of the year in Zeya is December, with an average low of -29°C and high of -21°C.
Days typically run about 10°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | -20 | -15 | -6 | 5 | 14 | 21 | 24 | 21 | 15 | 4 | -11 | -21 |
| Avg low (°C) | -30 | -26 | -16 | -4 | 3 | 11 | 15 | 12 | 5 | -5 | -20 | -29 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | -20 | -30 |
| Feb | -15 | -26 |
| Mar | -6 | -16 |
| Apr | 5 | -4 |
| May | 14 | 3 |
| Jun | 21 | 11 |
| Jul | 24 | 15 |
| Aug | 21 | 12 |
| Sep | 15 | 5 |
| Oct | 4 | -5 |
| Nov | -11 | -20 |
| Dec | -21 | -29 |
How hot and cold Zeya 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 -38°C (around December 27), with roughly 235 freezing days a year (feels-like at or below 0°C) — 175 of them bitterly cold — worst in December.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | -20 | -15 | -6 | 5 | 14 | 21 | 24 | 21 | 14 | 3 | -11 | -21 |
| Air high (°C) | -20 | -15 | -6 | 5 | 14 | 21 | 24 | 21 | 15 | 4 | -11 | -21 |
| Feels-like low (°C) | -37 | -33 | -23 | -9 | 0 | 10 | 15 | 12 | 2 | -9 | -26 | -36 |
| Air low (°C) | -30 | -26 | -16 | -4 | 3 | 11 | 15 | 12 | 5 | -5 | -20 | -29 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | -20 | -20 | -37 | -30 |
| Feb | -15 | -15 | -33 | -26 |
| Mar | -6 | -6 | -23 | -16 |
| Apr | 5 | 5 | -9 | -4 |
| May | 14 | 14 | 0 | 3 |
| Jun | 21 | 21 | 10 | 11 |
| Jul | 24 | 24 | 15 | 15 |
| Aug | 21 | 21 | 12 | 12 |
| Sep | 14 | 15 | 2 | 5 |
| Oct | 3 | 4 | -9 | -5 |
| Nov | -11 | -11 | -26 | -20 |
| Dec | -21 | -21 | -36 | -29 |
Average hourly temperature in Zeya
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 24°C, and coldest before dawn in December, near -29°C.
Zeya 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 | -20° / -30° | 3 | 1.1 | 2.2 | 7.8 | 0.0 |
| Feb | -15° / -26° | 4 | 1.3 | 2.1 | 9.4 | 0.0 |
| Mar | -6° / -17° | 9 | 2.7 | 3.3 | 11.5 | 0.0 |
| Apr | 5° / -5° | 24 | 4.8 | 3.6 | 13.7 | 0.6 |
| May | 14° / 3° | 65 | 9.5 | 1.1 | 15.6 | 3.9 |
| Jun | 21° / 11° | 76 | 11.1 | 0 | 16.7 | 6.2 |
| Jul | 24° / 15° | 146 | 14.9 | 0 | 16.3 | 6.1 |
| Aug | 21° / 12° | 114 | 12 | 0 | 14.6 | 6.2 |
| Sep | 15° / 5° | 75 | 10.2 | 0.3 | 12.5 | 4.2 |
| Oct | 4° / -5° | 35 | 6.4 | 4.9 | 10.3 | 0.5 |
| Nov | -11° / -20° | 14 | 3.7 | 4.6 | 8.3 | 0.0 |
| Dec | -21° / -29° | 4 | 1.3 | 2.1 | 7.3 | 0.0 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Zeya gets about 569 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 5.3 months, from around Apr 26 to Oct 4, peaking in July at about 50% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 19.
July is the wettest month by volume, with 146 mm over about 15 wet days; January is the driest, with 3 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 (%) | 3 | 4 | 9 | 17 | 30 | 38 | 47 | 40 | 33 | 21 | 12 | 5 |
| Rain days | 1 | 1 | 3 | 5 | 10 | 11 | 15 | 12 | 10 | 6 | 4 | 1 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 3 | 1 |
| Feb | 4 | 1 |
| Mar | 9 | 3 |
| Apr | 17 | 5 |
| May | 30 | 10 |
| Jun | 38 | 11 |
| Jul | 47 | 15 |
| Aug | 40 | 12 |
| Sep | 33 | 10 |
| Oct | 21 | 6 |
| Nov | 12 | 4 |
| Dec | 5 | 1 |
Monthly rainfall
Over a full year, Zeya collects about 569 mm of rain across 79 wet days — roughly 47 mm in an average month.
It doesn’t fall evenly. July is the wettest month with 146 mm, while January is the driest at just 3 mm. The three wettest months alone bring about 59% 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) | 3 | 4 | 9 | 24 | 65 | 76 | 146 | 114 | 75 | 35 | 14 | 4 |
| Rain days | 1 | 1 | 3 | 5 | 10 | 11 | 15 | 12 | 10 | 6 | 4 | 1 |
| Snow days | 2 | 2 | 3 | 4 | 1 | 0 | 0 | 0 | 0 | 5 | 5 | 2 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 3 | 1 | 2 |
| Feb | 4 | 1 | 2 |
| Mar | 9 | 3 | 3 |
| Apr | 24 | 5 | 4 |
| May | 65 | 10 | 1 |
| Jun | 76 | 11 | 0 |
| Jul | 146 | 15 | 0 |
| Aug | 114 | 12 | 0 |
| Sep | 75 | 10 | 0 |
| Oct | 35 | 6 | 5 |
| Nov | 14 | 4 | 5 |
| Dec | 4 | 1 | 2 |
Snow in Zeya
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.
Zeya averages about 24 snowy days a year. Snow season runs roughly Sep 20 to May 22 — about 8.1 months.
October is snowiest, with roughly 5 days of snow and an estimated 25 cm of snowfall. Over the year that adds up to an estimated 88 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 2 | 2 | 3 | 4 | 1 | 0 | 0 | 0 | 0 | 5 | 5 | 2 |
| Snowfall (cm) | 5 | 6 | 10 | 19 | 2 | 0 | 0 | 0 | 1 | 25 | 13 | 6 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 2 | 5 |
| Feb | 2 | 6 |
| Mar | 3 | 10 |
| Apr | 4 | 19 |
| May | 1 | 2 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 1 |
| Oct | 5 | 25 |
| Nov | 5 | 13 |
| Dec | 2 | 6 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Zeya, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around October 16 and lasts for 5.3 months, ending around March 25. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.
The cloudier part of the year begins around March 26 and lasts for 5.8 months, ending around September 18. The cloudiest month is May, when it is overcast or mostly cloudy 65% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 61 | 61 | 52 | 37 | 35 | 43 | 37 | 41 | 47 | 49 | 56 | 61 |
| Cloudier (%) | 39 | 39 | 48 | 63 | 65 | 57 | 63 | 59 | 53 | 51 | 44 | 39 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 61 | 39 |
| Feb | 61 | 39 |
| Mar | 52 | 48 |
| Apr | 37 | 63 |
| May | 35 | 65 |
| Jun | 43 | 57 |
| Jul | 37 | 63 |
| Aug | 41 | 59 |
| Sep | 47 | 53 |
| Oct | 49 | 51 |
| Nov | 56 | 44 |
| Dec | 61 | 39 |
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 16 h 48 min of light; the shortest, around December 13, only 7 h 12 min — a swing of roughly 9 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 7.8 | 9.4 | 11.5 | 13.7 | 15.6 | 16.7 | 16.3 | 14.6 | 12.5 | 10.3 | 8.3 | 7.3 |
| Sunrise (AM) | 8:49 | 8:03 | 6:57 | 5:40 | 4:37 | 4:07 | 4:26 | 5:16 | 6:13 | 7:09 | 8:09 | 8:51 |
| Sunset (PM) | 4:32 | 5:28 | 6:25 | 7:23 | 8:17 | 8:55 | 8:47 | 7:54 | 6:38 | 5:23 | 4:24 | 4:03 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 7.8 | 8:49 | 4:32 |
| Feb | 9.4 | 8:03 | 5:28 |
| Mar | 11.5 | 6:57 | 6:25 |
| Apr | 13.7 | 5:40 | 7:23 |
| May | 15.6 | 4:37 | 8:17 |
| Jun | 16.7 | 4:07 | 8:55 |
| Jul | 16.3 | 4:26 | 8:47 |
| Aug | 14.6 | 5:16 | 7:54 |
| Sep | 12.5 | 6:13 | 6:38 |
| Oct | 10.3 | 7:09 | 5:23 |
| Nov | 8.3 | 8:09 | 4:24 |
| Dec | 7.3 | 8:51 | 4:03 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Zeya averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 17 days.
The sunnier stretch runs 5.7 months, from around Sep 21 to Mar 11. The sunniest month is December, with roughly 15 sunny days (bright).
The greyest month is May, down near 6 sunny days — about 63% fewer than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 16 | 14 | 10 | 6 | 6 | 8 | 7 | 8 | 9 | 11 | 14 | 16 |
| Sky | Bright | Bright | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Mixed | Mixed | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 16 | Bright |
| Feb | 14 | Bright |
| Mar | 10 | Mixed |
| Apr | 6 | Gloomy |
| May | 6 | Gloomy |
| Jun | 8 | Gloomy |
| Jul | 7 | Gloomy |
| Aug | 8 | Gloomy |
| Sep | 9 | Mixed |
| Oct | 11 | Mixed |
| Nov | 14 | 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 Zeya, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 2.3 months, from around June 20 to August 27. The muggiest month is July, when the air feels humid, muggy or worse about 43% of the time.
The most comfortable stretch runs from around August 28 to June 19, and May 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 | 100 | 100 | 75 | 26 | 49 | 94 | 100 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 19 | 31 | 30 | 5 | 0 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 6 | 34 | 17 | 0 | 0 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 4 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 |
| Apr | 100 | 0 | 0 | 0 |
| May | 100 | 0 | 0 | 0 |
| Jun | 75 | 19 | 6 | 1 |
| Jul | 26 | 31 | 34 | 9 |
| Aug | 49 | 30 | 17 | 4 |
| Sep | 94 | 5 | 0 | 0 |
| Oct | 100 | 0 | 0 | 0 |
| Nov | 100 | 0 | 0 | 0 |
| Dec | 100 | 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 Zeya is typically calm, near 8 km/h, and varies little with the seasons.
The windier part of the year lasts 3.1 months, from around Mar 7 to Jun 9. The windiest month is April, averaging about 10 km/h (calm).
The calmer part of the year runs from around Nov 5 to Mar 6, with December the calmest month at about 7 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 8 | 9 | 10 | 10 | 8 | 8 | 8 | 9 | 9 | 8 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 7 | calm |
| Feb | 8 | calm |
| Mar | 9 | calm |
| Apr | 10 | calm |
| May | 10 | calm |
| Jun | 8 | calm |
| Jul | 8 | calm |
| Aug | 8 | calm |
| Sep | 9 | calm |
| Oct | 9 | calm |
| Nov | 8 | calm |
| Dec | 7 | calm |
Hazard calendar for Zeya
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Zeya's rainy season runs June–September, when most of the year's rain falls.
Best time to visit Zeya
To characterize how pleasant the weather is in Zeya throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late August, Zeya 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 time of year to visit Zeya for general outdoor tourist activities is from late May to early September, with a peak score in the last week of June.
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) | 0.0 | 0.0 | 0.0 | 0.7 | 3.9 | 6.2 | 6.1 | 6.1 | 4.2 | 0.6 | 0.0 | 0.0 |
| Rating | poor | poor | poor | poor | fair | good | good | good | fair | poor | poor | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 0.0 | poor |
| Feb | 0.0 | poor |
| Mar | 0.0 | poor |
| Apr | 0.7 | poor |
| May | 3.9 | fair |
| Jun | 6.2 | good |
| Jul | 6.1 | good |
| Aug | 6.1 | good |
| Sep | 4.2 | fair |
| Oct | 0.6 | poor |
| Nov | 0.0 | poor |
| Dec | 0.0 | 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 Zeya for hot-weather activities is from mid June to mid August, with a peak score in the first week of July.
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 Zeya, 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 24°C), the essentials are light clothes, rain gear and sun protection. In the cold season around December (highs near -21°C), pack a warm layer and a heavy coat.
In July, Zeya sees daytime highs around 24°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.
UV index (midday) in Zeya 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 Zeya peaks around July 11 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 1 | 2 | 3 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 0 |
| Level | Low | Low | Low | Moderate | High | Moderate | High | Moderate | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 1 | Low |
| Mar | 2 | Low |
| Apr | 3 | Moderate |
| May | 5 | High |
| Jun | 5 | Moderate |
| Jul | 5 | High |
| Aug | 4 | Moderate |
| Sep | 3 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 0 | Low |
Average hourly UV index in Zeya
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 6.5 hours a day reach index 3 (protection recommended). 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 | 0 | 0 | 1.5 | 6.5 | 6.5 | 6.5 | 4.5 | 2.5 | 0 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0 | 0 |
| Mar | 0 | 0 |
| Apr | 1.5 | 0 |
| May | 6.5 | 0 |
| Jun | 6.5 | 0 |
| Jul | 6.5 | 0 |
| Aug | 4.5 | 0 |
| Sep | 2.5 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Air quality in Zeya 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 Zeya is worst in July — around 84 µg/m³ PM2.5 (unhealthy), about 76.6× the cleanest month (December, 1 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 2 | 3 | 12 | 38 | 63 | 30 | 84 | 11 | 6 | 11 | 4 | 1 |
| Level | Good | Good | Good | Poor | Unhealthy | Moderate | Unhealthy | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 2 | Good |
| Feb | 3 | Good |
| Mar | 12 | Good |
| Apr | 38 | Poor |
| May | 63 | Unhealthy |
| Jun | 30 | Moderate |
| Jul | 84 | Unhealthy |
| Aug | 11 | Good |
| Sep | 6 | Good |
| Oct | 11 | Good |
| Nov | 4 | Good |
| Dec | 1 | Good |
Growing season
The growing season in Zeya typically lasts about 152 days, from around May 3 to October 1 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 21 to September 15.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 0 | 0 | 1 | 16 | 80 | 100 | 100 | 100 | 85 | 17 | 0 | 0 |
| Frost nights | 31 | 28 | 31 | 30 | 20 | 0 | 0 | 0 | 14 | 31 | 30 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 0 | 31 |
| Feb | 0 | 28 |
| Mar | 1 | 31 |
| Apr | 16 | 30 |
| May | 80 | 20 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 85 | 14 |
| Oct | 17 | 31 |
| Nov | 0 | 30 |
| Dec | 0 | 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. Zeya banks about 705 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 | 0 | 0 | 8 | 177 | 287 | 207 | 25 | 0 | 0 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 8 |
| Jun | 177 |
| Jul | 287 |
| Aug | 207 |
| Sep | 25 |
| Oct | 0 |
| Nov | 0 |
| 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.
Zeya receives about 3.5 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.8 and 6.1 kWh/m².
The brighter stretch of the year lasts 6.2 months, from around Mar 10 to Sep 13. The brightest month is June, averaging about 6.0 kWh/m² (intense).
The dimmest month is December, down near 0.9 kWh/m² — roughly 85% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 1.1 | 2.3 | 3.8 | 5.1 | 5.7 | 6.1 | 5.2 | 4.5 | 3.4 | 2.2 | 1.3 | 0.9 |
| Level | Dim | Moderate | Moderate | Bright | Bright | Intense | Bright | Bright | Moderate | Moderate | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 1.1 | Dim |
| Feb | 2.3 | Moderate |
| Mar | 3.8 | Moderate |
| Apr | 5.1 | Bright |
| May | 5.7 | Bright |
| Jun | 6.1 | Intense |
| Jul | 5.2 | Bright |
| Aug | 4.5 | Bright |
| Sep | 3.4 | Moderate |
| Oct | 2.2 | Moderate |
| Nov | 1.3 | Dim |
| Dec | 0.9 | Dim |
Where is Zeya?
Zeya sits at 53.7°N, 127.3°E, 221 m above sea level, in Russia. The nearest listed city is Shimanovsk, 195 km away.
Topography around Zeya
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zeya.
Within 3 km, the terrain around Zeya has only modest variations in elevation — a maximum elevation change of 199 m around an average of 239 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 634 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,285 m.
The land around Zeya is covered by trees (37%), grassland (22%) and artificial surfaces (21%) within 3 km, trees (68%) and grassland (23%) within 16 km, and trees (71%) and grassland (24%) within 80 km.
Russia travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 32% of US
- price level, 2025
- GDP per capita
- $17,547
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Safe drinking water
- 76%
- of population, 2024
- Homicide rate
- 6.8
- per 100k, 2021
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 521
- 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 Zeya (53.7359°, 127.256°, elevation 221 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).