Climate and average weather in Angarsk

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

Best: mid May to mid September

Over the course of the year, the temperature in Angarsk typically varies from -25°C to 25°C, and is rarely below -35°C or above 32°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 Angarsk for warm-weather activities is from mid May to mid September.

Hottest
Jul
25°
Coldest
Jan
-25°
Wettest
Aug
85 mm
Driest
Jan
4 mm
Rain / yr
382 mm
73 wet days
Daylight
7.4–16.6 h
shortest–longest
Elevation
430 m
52.6°N
Clearest
Mar
58% cloud

Angarsk is city in Irkutsk Oblast, Russia.

Density
827/km²
people per km²
Founded
1948

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

Angarsk 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 mid May to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.5 months, from May 5 to September 17, with daily high temperatures above 15°C. The hottest month of the year in Angarsk is July, with an average high of 25°C and low of 14°C.

The cool season lasts 2.9 months, from November 23 to February 19, with daily high temperatures below -8°C. The coldest month of the year in Angarsk is January, with an average low of -25°C and high of -15°C.

Days typically run about 12°C warmer than nights, with the widest day–night swing (around 14°C) in May.

-20°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-15-25
Feb-9-22
Mar0-13
Apr10-3
May184
Jun2411
Jul2514
Aug2312
Sep165
Oct7-3
Nov-5-13
Dec-13-22

How hot and cold Angarsk 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 -32°C (around January 20), with roughly 231 freezing days a year (feels-like at or below 0°C) 159 of them bitterly cold — worst in January.

-30°-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-15-15-32-25
Feb-9-9-29-22
Mar00-19-13
Apr1010-7-3
May181814
Jun24241011
Jul25251414
Aug23231112
Sep161625
Oct77-7-3
Nov-5-5-19-13
Dec-13-13-28-22

Average hourly temperature in Angarsk

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 25°C, and coldest before dawn in January, near -25°C.

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

Angarsk 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-15° / -25°41.32.680.0
Feb-9° / -22°41.32.89.50.0
Mar / -13°82.93.711.50.0
Apr10° / -3°195.52.513.62.6
May18° / 348.20.615.55.9
Jun24° / 11°599.8016.56.8
Jul25° / 14°8211.8016.16.4
Aug23° / 12°8511014.56.5
Sep16° / 519.70.312.44.9
Oct / -4°185.12.810.31.2
Nov-5° / -13°103.54.68.50.0
Dec-13° / -22°83.14.47.50.0

Chance of rain

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

Angarsk gets about 382 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 5.4 months, from around Apr 26 to Oct 7, peaking in July at about 39% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 12.

August is the wettest month by volume, with 85 mm over about 11 wet days; January is the driest, with 4 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 25 · 39%Jan 12 · 4%
Rain on a day (%)Rain days
Jan51
Feb51
Mar103
Apr186
May278
Jun3310
Jul3712
Aug3611
Sep3110
Oct185
Nov114
Dec103

Monthly rainfall

Over a full year, Angarsk collects about 382 mm of rain across 73 wet days — roughly 32 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 85 mm, while January is the driest at just 4 mm. The three wettest months alone bring about 59% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec44819345982855118108
Rainfall (mm)Rain daysSnow days
Jan413
Feb413
Mar834
Apr1963
May3481
Jun59100
Jul82120
Aug85110
Sep51100
Oct1853
Nov1045
Dec834

Snow in Angarsk

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.

Angarsk averages about 24 snowy days a year. Snow season runs roughly Sep 22 to May 14 — about 7.7 months.

November is snowiest, with roughly 4 days of snow and an estimated 11 cm of snowfall. Over the year that adds up to an estimated 71 cm of snow.

0246JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonNov 24
Snow daysSnowfall (cm)
Jan37
Feb38
Mar411
Apr310
May12
Jun00
Jul00
Aug00
Sep02
Oct38
Nov511
Dec413

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Angarsk, 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 December 31 and lasts for 3.0 months, ending around March 30. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 46% of the time on average.

The cloudier part of the year begins around October 26 and lasts for 2.2 months, ending around December 30. The cloudiest month is December, when it is overcast or mostly cloudy 64% 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%JanFebMarAprMayJunJulAugSepOctNovDecFeb 4 · 48%Dec 2 · 31%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan4456
Feb4654
Mar4555
Apr3961
May4357
Jun4456
Jul4258
Aug4456
Sep4555
Oct4555
Nov3664
Dec3664

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 16, brings about 16 h 36 min of light; the shortest, around December 15, only 7 h 24 min — a swing of roughly 9 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.09:165:11
Feb9.58:336:05
Mar11.57:296:59
Apr13.66:157:54
May15.55:158:46
Jun16.54:489:21
Jul16.15:069:14
Aug14.55:538:24
Sep12.46:477:11
Oct10.37:405:59
Nov8.58:375:02
Dec7.59:184:43

Sunny days

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

Angarsk averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 10 days.

The sunnier stretch runs 3.1 months, from around Dec 30 to Apr 1. The sunniest month is February, with roughly 10 sunny days (mixed).

The greyest month is November, down near 6 sunny days — about 33% fewer than the February peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedFeb 510 daysNov 305 days
Sunny daysSky
Jan9Mixed
Feb9Mixed
Mar10Mixed
Apr7Gloomy
May8Gloomy
Jun8Mixed
Jul8Gloomy
Aug9Mixed
Sep9Mixed
Oct10Mixed
Nov6Gloomy
Dec7Gloomy

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

The more humid part of the year lasts 2.2 months, from around June 18 to August 23. The muggiest month is July, when the air feels humid, muggy or worse about 24% of the time.

The most comfortable stretch runs from around August 24 to June 17, and May is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMay 25 · 100%Jul 22 · 70%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May100000
Jun821440
Jul4135222
Aug603190
Sep97300
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 Angarsk is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 3.6 months, from around Mar 12 to Jun 30. The windiest month is April, averaging about 11 km/h (calm).

The calmer part of the year runs from around Oct 19 to Mar 11, with January the calmest month at about 8 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeApr 28 · 11 km/hJan 10 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb8calm
Mar9calm
Apr11calm
May11calm
Jun10calm
Jul9calm
Aug9calm
Sep10calm
Oct9calm
Nov8calm
Dec8calm

Best time to visit Angarsk

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Angarsk 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 Angarsk for general outdoor tourist activities is from mid May to mid September, with a peak score in the second week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 13 · 6.9

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
Mar0.1poor
Apr2.6poor
May5.9good
Jun6.7good
Jul6.5good
Aug6.5good
Sep4.9fair
Oct1.3poor
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 Angarsk for hot-weather activities is from early June to mid August, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 10 · 6.1

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 Angarsk, 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 25°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -15°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Angarsk sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

UV index (midday) in Angarsk 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 Angarsk peaks around July 12 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr5Moderate
May5High
Jun6High
Jul7High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Average hourly UV index in Angarsk

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 July the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 2.5 hours reach 6 or more. 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
Apr50
May6.50
Jun7.51
Jul7.52.5
Aug5.50
Sep30
Oct00
Nov00
Dec00

Air quality in Angarsk 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 Angarsk is worst in May — around 22 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMay 1621 µg/m³Nov 1510 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar13Moderate
Apr17Moderate
May22Moderate
Jun16Moderate
Jul18Moderate
Aug18Moderate
Sep11Good
Oct12Good
Nov10Good
Dec12Good
Almanac & agriculture

Growing season

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

The growing season in Angarsk typically lasts about 157 days, from around April 29 to October 2 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 20 to September 18.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonApr 510%Apr 2950%May 2090%Sep 1890%Oct 250%Oct 2210%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar331
Apr2530
May8219
Jun1000
Jul1000
Aug1000
Sep8812
Oct2231
Nov230
Dec031

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. Angarsk banks about 824 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02004006008001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May47
Jun221
Jul300
Aug222
Sep34
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.

Angarsk receives about 3.6 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.9 and 6.2 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 11 to Sep 13. The brightest month is June, averaging about 6.1 kWh/m² (intense).

The dimmest month is December, down near 0.9 kWh/m² — roughly 85% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 36.2 kWhDec 170.9 kWh
Solar energy (kWh/m²)Level
Jan1.2Dim
Feb2.3Moderate
Mar3.9Moderate
Apr5.1Bright
May6.0Intense
Jun6.1Intense
Jul5.5Bright
Aug4.7Bright
Sep3.5Moderate
Oct2.3Moderate
Nov1.3Dim
Dec0.9Dim

Where is Angarsk?

Angarsk sits at 52.6°N, 103.9°E, 430 m above sea level, in Russia. The nearest listed city is Usol’ye-Sibirskoye, 28 km away.

Topography around Angarsk

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

Within 3 km, the terrain around Angarsk has only modest variations in elevation — a maximum elevation change of 43 m around an average of 427 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, large variations in elevation — a maximum elevation change of 957 m.

The land around Angarsk is covered by trees (41%) and artificial surfaces (39%) within 3 km, trees (50%) and grassland (32%) within 16 km, and trees (68%) within 80 km.

3 km
43 m
16 km
195 m
80 km
957 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Usol’ye-Sibirskoye 28 km · Irkutsk 39 km · Shelekhov 40 km · Markova 44 km · Cheremkhovo 86 km · Slyudyanka 101 km · Baykal’sk 117 km · Zima 196 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 Angarsk (52.5597°, 103.9141°, elevation 430 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).