Climate and average weather in Bratsk

In Bratsk, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and mostly cloudy.

Best: early June to late August

Over the course of the year, the temperature in Bratsk typically varies from -24°C to 23°C, and is rarely below -38°C or above 27°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Bratsk for warm-weather activities is from early June to late August.

Hottest
Jul
23°
Coldest
Jan
-24°
Wettest
Aug
58 mm
Driest
Feb
7 mm
Rain / yr
353 mm
85 wet days
Daylight
6.6–17.4 h
shortest–longest
Elevation
443 m
56.1°N
Clearest
Aug
64% cloud

Bratsk is city in eastern Russia.

Density
600/km²
people per km²
Founded
1955

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Bratsk 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 June to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Bratsk, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.0 months, from May 16 to September 15, with daily high temperatures above 13°C. The hottest month of the year in Bratsk is July, with an average high of 23°C and low of 14°C.

The cool season lasts 3.0 months, from November 22 to February 21, with daily high temperatures below -10°C. The coldest month of the year in Bratsk is January, with an average low of -24°C and high of -17°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 11°C) in March.

-40°-20°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-17-24
Feb-12-21
Mar-3-13
Apr5-4
May133
Jun2010
Jul2314
Aug2012
Sep135
Oct4-3
Nov-7-14
Dec-15-22

How hot and cold Bratsk really feels

Feels-like highFeels-like lowactual air temp

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 -33°C (around January 6), with roughly 238 freezing days a year (feels-like at or below 0°C) 171 of them bitterly cold — worst in January.

-30°-20°-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-17-17-32-24
Feb-12-12-29-21
Mar-3-3-20-13
Apr55-9-4
May1313-13
Jun2020910
Jul23231414
Aug20201112
Sep131325
Oct44-7-3
Nov-7-7-21-14
Dec-15-15-30-22

Average hourly temperature in Bratsk

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 23°C, and coldest before dawn in January, near -24°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Bratsk weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-17° / -24°835.77.30.0
Feb-12° / -21°72.44.89.10.0
Mar-3° / -14°113.75.811.40.0
Apr / -4°195.93.713.80.4
May13° / 3810.11.3163.4
Jun20° / 10°519.9017.26.1
Jul23° / 14°589.5016.76.8
Aug20° / 12°5810.4014.96.2
Sep13° / 4210.20.612.53.4
Oct / -3°278.24.910.10.3
Nov-7° / -14°206.48.57.90.0
Dec-15° / -22°145.48.66.80.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Bratsk gets about 353 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 6.5 months, from around Apr 21 to Nov 4, peaking in May at about 36% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 6.

August is the wettest month by volume, with 58 mm over about 10 wet days; February is the driest, with 7 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 31 · 36%Feb 6 · 9%
Rain on a day (%)Rain days
Jan103
Feb92
Mar114
Apr206
May3210
Jun3310
Jul3010
Aug3410
Sep3310
Oct278
Nov216
Dec175

Monthly rainfall

Over a full year, Bratsk collects about 353 mm of rain across 85 wet days — roughly 29 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 58 mm, while February is the driest at just 7 mm. The three wettest months alone bring about 47% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075JanFebMarAprMayJunJulAugSepOctNovDec8711193851585842272014
Rainfall (mm)Rain daysSnow days
Jan836
Feb725
Mar1146
Apr1964
May38101
Jun51100
Jul58100
Aug58100
Sep42101
Oct2785
Nov2069
Dec1459

Snow in Bratsk

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.

Bratsk averages about 44 snowy days a year. Snow season runs roughly Sep 17 to May 24 — about 8.2 months.

November is snowiest, with roughly 8 days of snow and an estimated 23 cm of snowfall. Over the year that adds up to an estimated 122 cm of snow.

0510JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonNov 29
Snow daysSnowfall (cm)
Jan614
Feb515
Mar616
Apr413
May13
Jun00
Jul00
Aug00
Sep12
Oct513
Nov923
Dec923

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Bratsk, 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 May 5 and lasts for 4.6 months, ending around September 21. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 42% of the time on average.

The cloudier part of the year begins around September 22 and lasts for 5.7 months, ending around March 15. The cloudiest month is December, when it is overcast or mostly cloudy 86% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 3 · 44%Dec 3 · 12%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1783
Feb2476
Mar2674
Apr2575
May2971
Jun3961
Jul4258
Aug3961
Sep2971
Oct2080
Nov1486
Dec1486

Daylight, sunrise and sunset

DaylightNight

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 19, brings about 17 h 24 min of light; the shortest, around December 19, only 6 h 36 min — a swing of roughly 10 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan7.39:455:01
Feb9.18:536:03
Mar11.47:417:06
Apr13.86:178:10
May16.05:089:11
Jun17.24:349:53
Jul16.74:559:43
Aug14.95:518:44
Sep12.56:547:22
Oct10.17:566:01
Nov7.99:034:55
Dec6.89:504:30

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Bratsk averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 8 days.

The sunnier stretch runs 4.3 months, from around May 11 to Sep 17. The sunniest month is August, with roughly 7 sunny days (gloomy).

The greyest month is November, down near 2 sunny days — about 73% fewer than the August peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 78 daysNov 281 days
Sunny daysSky
Jan3Gloomy
Feb4Gloomy
Mar5Gloomy
Apr4Gloomy
May5Gloomy
Jun6Gloomy
Jul7Gloomy
Aug7Gloomy
Sep5Gloomy
Oct3Gloomy
Nov2Gloomy
Dec2Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

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 Bratsk, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 2.2 months, from around June 16 to August 22. The muggiest month is July, when the air feels humid, muggy or worse about 17% of the time.

The most comfortable stretch runs from around August 23 to June 15, and June is the most comfortable month — the air is dry or comfortable 97% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJun 1 · 100%Jul 19 · 80%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May100000
Jun821430
Jul4538161
Aug702550
Sep99100
Oct100000
Nov100000
Dec100000

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 Bratsk is typically calm, near 11 km/h, and varies little with the seasons.

The windier part of the year lasts 3.6 months, from around Sep 4 to Dec 21. The windiest month is October, averaging about 12 km/h (light breeze).

The calmer part of the year runs from around May 25 to Sep 3, with July the calmest month at about 8 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 28 · 13 km/hJul 2 · 8 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar11calm
Apr12calm
May11calm
Jun9calm
Jul8calm
Aug9calm
Sep11calm
Oct12light breeze
Nov12light breeze
Dec11calm

Best time to visit Bratsk

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Bratsk throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late August, Bratsk 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 Bratsk for general outdoor tourist activities is from early June to late August, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 13 · 6.8

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).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.0poor
Apr0.5poor
May3.4poor
Jun6.1good
Jul6.8good
Aug6.1good
Sep3.4poor
Oct0.4poor
Nov0.0poor
Dec0.0poor

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 Bratsk for hot-weather activities is from late June to mid August, with a peak score in the third week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 16 · 5.2

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 Bratsk, by month

EssentialRecommendedOptional

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 23°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -17°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Bratsk sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

UV index (midday) in Bratsk by month

LowModerateHighVery highExtreme

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 Bratsk peaks around June 21 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 21UV 6Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug5High
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low

Average hourly UV index in Bratsk

LowModerateHighVery highExtreme

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 June the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended). Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar00
Apr3.50
May6.50
Jun7.50
Jul70
Aug60
Sep10
Oct00
Nov00
Dec00

Air quality in Bratsk by month

GoodModeratePoorUnhealthyVery unhealthy

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 Bratsk is worst in June — around 31 µg/m³ PM2.5 (moderate), about 17.2× the cleanest month (December, 2 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1930 µg/m³Dec 162 µg/m³
PM2.5 (µg/m³)Level
Jan4Good
Feb5Good
Mar6Good
Apr14Moderate
May23Moderate
Jun31Moderate
Jul28Moderate
Aug16Moderate
Sep24Moderate
Oct8Good
Nov3Good
Dec2Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Bratsk typically lasts about 155 days, from around May 4 to October 5 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 25 to September 19.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonApr 710%May 450%May 2590%Sep 1990%Oct 550%Nov 310%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar331
Apr2030
May7425
Jun1000
Jul1000
Aug1000
Sep9011
Oct3031
Nov530
Dec131

Growing degree days

Degree days (base 10°C)Frost-free shaded

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. Bratsk banks about 593 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

0200400600800JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May4
Jun140
Jul252
Aug183
Sep13
Oct0
Nov0
Dec0

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.

Bratsk receives about 3.2 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.5 and 6.0 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Mar 15 to Sep 11. The brightest month is June, averaging about 6.0 kWh/m² (bright).

The dimmest month is December, down near 0.5 kWh/m² — roughly 91% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 136.0 kWhDec 210.5 kWh
Solar energy (kWh/m²)Level
Jan0.7Dim
Feb1.7Dim
Mar3.3Moderate
Apr4.8Bright
May5.7Bright
Jun6.0Intense
Jul5.5Bright
Aug4.5Bright
Sep3.0Moderate
Oct1.7Dim
Nov0.8Dim
Dec0.5Dim

Where is Bratsk?

Bratsk sits at 56.1°N, 101.6°E, 443 m above sea level, in Russia. The nearest listed city is Vikhorevka, 27 km away.

Topography around Bratsk

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bratsk.

Within 3 km, the terrain around Bratsk has only modest variations in elevation — a maximum elevation change of 103 m around an average of 437 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, large variations in elevation — a maximum elevation change of 687 m.

The land around Bratsk is covered by trees (42%) and artificial surfaces (34%) within 3 km, trees (58%) and water (29%) within 16 km, and trees (82%) within 80 km.

3 km
103 m
16 km
375 m
80 km
687 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: Vikhorevka 27 km · Chunskiy 123 km · Zheleznogorsk-Ilimskiy 163 km · Tulun 186 km · Nizhneudinsk 212 km · Ust’-Ilimsk 217 km · Tayshet 226 km · Sayansk 227 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
other Christian 2%

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 Bratsk (56.1325°, 101.6142°, elevation 443 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).