Climate and average weather in Tulun

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

Best: late May to early September

Over the course of the year, the temperature in Tulun typically varies from -25°C to 24°C, and is rarely below -37°C or above 30°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 Tulun for warm-weather activities is from late May to early September.

Hottest
Jul
24°
Coldest
Jan
-25°
Wettest
Aug
82 mm
Driest
Feb
7 mm
Rain / yr
440 mm
94 wet days
Daylight
7.0–17.0 h
shortest–longest
Elevation
484 m
54.6°N
Clearest
Jun
65% cloud

Tulun is town in Irkutsk Oblast, Russia.

Density
383/km²
people per km²
Founded
1735

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

Tulun 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

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.3 months, from May 7 to September 15, with daily high temperatures above 14°C. The hottest month of the year in Tulun is July, with an average high of 24°C and low of 13°C.

The cool season lasts 2.9 months, from November 23 to February 17, with daily high temperatures below -9°C. The coldest month of the year in Tulun 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 13°C) in May.

-40°-20°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-16-25
Feb-10-22
Mar-1-14
Apr8-3
May163
Jun2210
Jul2413
Aug2110
Sep143
Oct5-4
Nov-6-14
Dec-14-22

How hot and cold Tulun 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 8), with roughly 239 freezing days a year (feels-like at or below 0°C) 167 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-16-16-33-25
Feb-10-10-29-22
Mar-1-1-19-14
Apr88-7-3
May161603
Jun2222910
Jul24241313
Aug21211010
Sep141413
Oct55-8-4
Nov-6-6-20-14
Dec-14-14-29-22

Average hourly temperature in Tulun

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 January, near -25°C.

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

Tulun 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°72.74.47.60.0
Feb-10° / -22°72.64.79.30.0
Mar-1° / -14°124511.50.0
Apr / -3°246.93.813.71.5
May16° / 4510.91.415.84.8
Jun22° / 10°7212016.96.2
Jul24° / 13°7712.5016.46.5
Aug21° / 10°8212.7014.76.0
Sep14° / 56110.812.53.9
Oct / -4°277.74.110.20.6
Nov-6° / -14°175.97.58.20.0
Dec-14° / -22°144.77.27.10.0

Chance of rain

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

Tulun gets about 440 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 5.6 months, from around Apr 21 to Oct 8, peaking in July at about 42% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 17.

August is the wettest month by volume, with 82 mm over about 13 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 wetJul 26 · 42%Jan 17 · 8%
Rain on a day (%)Rain days
Jan93
Feb103
Mar134
Apr237
May3511
Jun4112
Jul4013
Aug4113
Sep3611
Oct258
Nov196
Dec165

Monthly rainfall

Over a full year, Tulun collects about 440 mm of rain across 94 wet days — roughly 37 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 82 mm, while February is the driest at just 7 mm. The three wettest months alone bring about 52% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec7712244572778256271714
Rainfall (mm)Rain daysSnow days
Jan734
Feb735
Mar1245
Apr2474
May45111
Jun72120
Jul77130
Aug82130
Sep56111
Oct2784
Nov1768
Dec1457

Snow in Tulun

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.

Tulun averages about 39 snowy days a year. Snow season runs roughly Sep 12 to May 27 — about 8.5 months.

November is snowiest, with roughly 7 days of snow and an estimated 20 cm of snowfall. Over the year that adds up to an estimated 115 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonNov 27
Snow daysSnowfall (cm)
Jan410
Feb513
Mar516
Apr414
May15
Jun00
Jul00
Aug00
Sep13
Oct413
Nov820
Dec722

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Tulun, 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 May 9 and lasts for 5.2 months, ending around October 14. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 39% of the time on average.

The cloudier part of the year begins around October 15 and lasts for 3.4 months, ending around January 25. The cloudiest month is December, when it is overcast or mostly cloudy 80% 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 22 · 40%Dec 3 · 16%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2872
Feb3070
Mar3070
Apr2674
May3466
Jun3961
Jul3763
Aug3961
Sep3763
Oct3169
Nov2377
Dec2080

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 15, brings about 17 hours of light; the shortest, around December 15, only 7 hours — a swing of roughly 10 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan7.69:405:14
Feb9.38:526:12
Mar11.57:447:11
Apr13.76:258:11
May15.85:209:08
Jun16.94:499:47
Jul16.45:089:38
Aug14.76:018:43
Sep12.56:597:25
Oct10.27:576:08
Nov8.28:595:07
Dec7.19:434:45

Sunny days

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

Tulun averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 7 days.

The sunnier stretch runs 2.3 months, from around Jan 22 to Mar 31. The sunniest month is February, with roughly 6 sunny days (gloomy).

The greyest month is November, down near 4 sunny days — about 36% fewer than the February peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedFeb 27 daysNov 303 days
Sunny daysSky
Jan5Gloomy
Feb6Gloomy
Mar6Gloomy
Apr4Gloomy
May5Gloomy
Jun6Gloomy
Jul6Gloomy
Aug7Gloomy
Sep6Gloomy
Oct6Gloomy
Nov4Gloomy
Dec3Gloomy

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

The more humid part of the year lasts 2.1 months, from around June 16 to August 18. The muggiest month is July, when the air feels humid, muggy or worse about 16% of the time.

The most comfortable stretch runs from around August 19 to June 15, 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 26 · 100%Jul 21 · 81%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May100000
Jun811630
Jul4935151
Aug722350
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.

Wind in Tulun is steady company: average speeds sit near 9 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 21 · 11 km/hJan 11 · 8 km/h
Wind speed (km/h)Feels
Jan8calm
Feb9calm
Mar10calm
Apr11calm
May11calm
Jun9calm
Jul8calm
Aug9calm
Sep9calm
Oct9calm
Nov9calm
Dec9calm

Best time to visit Tulun

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Tulun 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 Tulun for general outdoor tourist activities is from late May to early September, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 6 · 6.6

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
Apr1.6poor
May4.8fair
Jun6.2good
Jul6.5good
Aug6.0good
Sep3.9fair
Oct0.7poor
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 Tulun for hot-weather activities is from mid June to early August, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 9 · 5.7

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 Tulun, 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 24°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, Tulun sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

UV index (midday) in Tulun 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 Tulun 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 0 (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 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Low
Apr4Moderate
May5High
Jun6High
Jul6High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Average hourly UV index in Tulun

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 0.5 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
Apr40
May6.50
Jun7.50
Jul7.50.5
Aug60
Sep30
Oct00
Nov00
Dec00

Air quality in Tulun 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 Tulun is worst in May — around 17 µg/m³ PM2.5 (moderate), about 9.7× the cleanest month (December, 2 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1217 µg/m³Dec 162 µg/m³
PM2.5 (µg/m³)Level
Jan4Good
Feb5Good
Mar6Good
Apr16Moderate
May17Moderate
Jun12Moderate
Jul15Moderate
Aug13Moderate
Sep8Good
Oct9Good
Nov4Good
Dec2Good
Almanac & agriculture

Growing season

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

The growing season in Tulun typically lasts about 150 days, from around May 2 to September 28 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 26 to September 12.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonApr 410%May 250%May 2690%Sep 1290%Sep 2850%Oct 2310%
Frost-free chance (%)Frost nights
Jan031
Feb028
Mar331
Apr2430
May7626
Jun990
Jul1000
Aug1000
Sep7919
Oct1931
Nov430
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. Tulun banks about 647 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
May21
Jun177
Jul258
Aug177
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.

Tulun receives about 3.3 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.6 and 6.0 kWh/m².

The brighter stretch of the year lasts 6.0 months, from around Mar 14 to Sep 13. The brightest month is June, averaging about 5.9 kWh/m² (bright).

The dimmest month is December, down near 0.7 kWh/m² — roughly 89% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 46.0 kWhDec 190.6 kWh
Solar energy (kWh/m²)Level
Jan0.9Dim
Feb1.9Dim
Mar3.4Moderate
Apr4.8Bright
May5.8Bright
Jun6.0Intense
Jul5.4Bright
Aug4.6Bright
Sep3.2Moderate
Oct1.9Dim
Nov1.0Dim
Dec0.6Dim

Where is Tulun?

Tulun sits at 54.6°N, 100.6°E, 484 m above sea level, in Russia. The nearest listed city is Nizhneudinsk, 106 km away.

Topography around Tulun

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

Within 3 km, the terrain around Tulun has only modest variations in elevation — a maximum elevation change of 96 m around an average of 485 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 224 m; within 80 km, significant variations in elevation — a maximum elevation change of 433 m.

The land around Tulun is covered by trees (42%), grassland (27%) and artificial surfaces (20%) within 3 km, trees (47%), grassland (28%) and cropland (20%) within 16 km, and trees (74%) within 80 km.

3 km
96 m
16 km
224 m
80 km
433 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Nizhneudinsk 106 km · Sayansk 115 km · Zima 119 km · Vikhorevka 177 km · Chunskiy 180 km · Bratsk 186 km · Tayshet 223 km · Cheremkhovo 228 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 Tulun (54.5676°, 100.5766°, elevation 484 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).