Climate and average weather in Usol’ye-Sibirskoye

In Usol’ye-Sibirskoye, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and partly cloudy.

Best: mid May to early September

Over the course of the year, the temperature in Usol’ye-Sibirskoye typically varies from -25°C to 25°C, and is rarely below -36°C or above 31°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 Usol’ye-Sibirskoye for warm-weather activities is from mid May to early September.

Hottest
Jul
25°
Coldest
Jan
-25°
Wettest
Jul
88 mm
Driest
Jan
4 mm
Rain / yr
400 mm
76 wet days
Daylight
7.4–16.6 h
shortest–longest
Elevation
435 m
52.8°N
Clearest
Mar
59% cloud

Usol’ye-Sibirskoye is town in Russia.

Density
1,161/km²
people per km²
Founded
1669

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

Usol’ye-Sibirskoye 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 early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Usol’ye-Sibirskoye, 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 4 to September 17, with daily high temperatures above 15°C. The hottest month of the year in Usol’ye-Sibirskoye is July, with an average high of 25°C and low of 14°C.

The cool season lasts 3.0 months, from November 22 to February 20, with daily high temperatures below -8°C. The coldest month of the year in Usol’ye-Sibirskoye is January, with an average low of -25°C and high of -16°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 14°C) in May.

-40°-20°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-16-25
Feb-10-22
Mar0-14
Apr10-3
May184
Jun2411
Jul2514
Aug2212
Sep155
Oct6-4
Nov-6-14
Dec-14-22

How hot and cold Usol’ye-Sibirskoye 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 10), with roughly 232 freezing days a year (feels-like at or below 0°C) 162 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-16-16-33-25
Feb-10-10-29-22
Mar00-20-14
Apr1010-7-3
May181814
Jun24241011
Jul25251414
Aug22221112
Sep151525
Oct66-8-4
Nov-6-6-20-14
Dec-14-14-29-22

Average hourly temperature in Usol’ye-Sibirskoye

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

Usol’ye-Sibirskoye 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-16° / -25°41.22.57.90.0
Feb-10° / -22°41.52.79.50.0
Mar-1° / -14°93411.50.0
Apr10° / -3°205.53.113.62.3
May18° / 348.40.815.55.8
Jun24° / 11°6310.4016.56.7
Jul25° / 14°8812.4016.16.4
Aug22° / 12°8611.2014.56.5
Sep15° / 5310.30.412.44.7
Oct / -4°185.42.910.31.0
Nov-6° / -14°113.64.88.50.0
Dec-14° / -23°93.14.77.50.0

Chance of rain

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

Usol’ye-Sibirskoye gets about 400 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 5.5 months, from around Apr 25 to Oct 8, peaking in July at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 11.

July is the wettest month by volume, with 88 mm over about 12 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 19 · 40%Jan 11 · 3%
Rain on a day (%)Rain days
Jan41
Feb62
Mar103
Apr186
May278
Jun3510
Jul3912
Aug3711
Sep3310
Oct195
Nov124
Dec103

Monthly rainfall

Over a full year, Usol’ye-Sibirskoye collects about 400 mm of rain across 76 wet days — roughly 33 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 88 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.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec44920346388865318119
Rainfall (mm)Rain daysSnow days
Jan413
Feb423
Mar934
Apr2063
May3481
Jun63100
Jul88120
Aug86110
Sep53100
Oct1853
Nov1145
Dec935

Snow in Usol’ye-Sibirskoye

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.

Usol’ye-Sibirskoye averages about 26 snowy days a year. Snow season runs roughly Sep 19 to May 23 — about 8.1 months.

December is snowiest, with roughly 5 days of snow and an estimated 14 cm of snowfall. Over the year that adds up to an estimated 76 cm of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonDec 9
Snow daysSnowfall (cm)
Jan37
Feb38
Mar411
Apr311
May12
Jun00
Jul00
Aug00
Sep02
Oct38
Nov512
Dec514

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Usol’ye-Sibirskoye, 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 31 and lasts for 3.0 months, ending around October 28. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 44% of the time on average.

The cloudier part of the year begins around October 29 and lasts for 3.0 months, ending around January 26. The cloudiest month is December, when it is overcast or mostly cloudy 69% 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%JanFebMarAprMayJunJulAugSepOctNovDecOct 11 · 46%Dec 1 · 27%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3961
Feb4456
Mar4357
Apr3763
May4159
Jun4357
Jul4060
Aug4357
Sep4456
Oct4456
Nov3466
Dec3169

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 13, brings about 16 h 36 min of light; the shortest, around December 13, 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)
Jan7.99:185:11
Feb9.58:356:05
Mar11.57:307:00
Apr13.66:167:55
May15.55:168:48
Jun16.54:489:24
Jul16.15:069:16
Aug14.55:548:25
Sep12.46:487:12
Oct10.37:416:00
Nov8.58:395:02
Dec7.59:204:43

Sunny days

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

Usol’ye-Sibirskoye averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 10 days.

The sunnier stretch runs 2.3 months, from around Jan 27 to Apr 6. The sunniest month is March, with roughly 9 sunny days (mixed).

The greyest month is December, down near 5 sunny days — about 47% fewer than the March peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedMar 710 daysDec 24 days
Sunny daysSky
Jan7Gloomy
Feb8Mixed
Mar10Mixed
Apr7Gloomy
May7Gloomy
Jun8Gloomy
Jul8Gloomy
Aug9Mixed
Sep8Mixed
Oct9Mixed
Nov6Gloomy
Dec5Gloomy

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 Usol’ye-Sibirskoye, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 2.1 months, from around June 18 to August 21. 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 22 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 · 71%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May100000
Jun831430
Jul4135222
Aug613180
Sep97200
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.

Wind in Usol’ye-Sibirskoye is steady company: average speeds sit near 10 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 28 · 11 km/hJan 10 · 8 km/h
Wind speed (km/h)Feels
Jan8calm
Feb9calm
Mar10calm
Apr11calm
May11calm
Jun10calm
Jul9calm
Aug10calm
Sep10calm
Oct10calm
Nov9calm
Dec8calm

Best time to visit Usol’ye-Sibirskoye

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye for general outdoor tourist activities is from mid May to early September, with a peak score in the second week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 12 · 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
Apr2.3poor
May5.7good
Jun6.6good
Jul6.4good
Aug6.4good
Sep4.6fair
Oct1.1poor
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 Usol’ye-Sibirskoye 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 · 5.9

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 Usol’ye-Sibirskoye, 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 -16°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye 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
Apr4Moderate
May5High
Jun6High
Jul6High
Aug5Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec1Low

Average hourly UV index in Usol’ye-Sibirskoye

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 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
Aug60
Sep30
Oct00
Nov00
Dec00

Air quality in Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye is worst in May — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodMay 1617 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Moderate
Mar11Good
Apr14Moderate
May17Moderate
Jun14Moderate
Jul17Moderate
Aug14Moderate
Sep9Good
Oct9Good
Nov8Good
Dec9Good
Almanac & agriculture

Growing season

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

The growing season in Usol’ye-Sibirskoye typically lasts about 155 days, from around April 30 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 18.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonApr 510%Apr 3050%May 2190%Sep 1890%Oct 150%Oct 2110%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar331
Apr2530
May8219
Jun1000
Jul1000
Aug1000
Sep8712
Oct2131
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. Usol’ye-Sibirskoye banks about 798 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
May42
Jun215
Jul294
Aug217
Sep30
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.

Usol’ye-Sibirskoye 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 46.2 kWhDec 180.9 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 Usol’ye-Sibirskoye?

Usol’ye-Sibirskoye sits at 52.8°N, 103.6°E, 435 m above sea level, in Russia. The nearest listed city is Angarsk, 28 km away.

Topography around Usol’ye-Sibirskoye

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Usol’ye-Sibirskoye.

Within 3 km, the terrain around Usol’ye-Sibirskoye has only modest variations in elevation — a maximum elevation change of 91 m around an average of 438 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 213 m; within 80 km, large variations in elevation — a maximum elevation change of 1,029 m.

The land around Usol’ye-Sibirskoye is covered by trees (40%), artificial surfaces (33%) and grassland (20%) within 3 km, trees (53%) and grassland (28%) within 16 km, and trees (60%) and grassland (22%) within 80 km.

3 km
91 m
16 km
213 m
80 km
1,029 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Angarsk 28 km · Cheremkhovo 58 km · Irkutsk 67 km · Shelekhov 67 km · Markova 72 km · Slyudyanka 121 km · Baykal’sk 142 km · Zima 168 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 Usol’ye-Sibirskoye (52.7519°, 103.6453°, elevation 435 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).