Tulun weather in December

In December, Tulun sees average daytime highs of -14°C and overnight lows near -22°C, with 14 mm of precipitation across 4.7 wet days and about 7.1 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about -12°C in the first days to -16°C by the end. The sky is clear or mostly clear about 11% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 24 min at the start of December to 7 h 06 min by month's end. Set against the rest of the year, December is Tulun's 12th-clearest and 8th-windiest month. For the whole year in context, see Tulun's year-round climate.

Daytime high
-14°
11th warmest
Overnight low
-22°
2nd coldest
Precipitation
14 mm
4.7 wet days
Daylight
7 hours
9:43 AM – 4:45 PM
Cloud cover
80%
12th clearest
Wind
9 km/h
8th windiest
Solar energy
0.64 kWh/m²
Travel score
0.0
out of 10

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.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -12°C in the first days to -16°C by the end.

A typical December day in Tulun reaches about -14°C in the afternoon and slips back to -22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -25°C and -5°C. Set against its neighbours, December runs about 8°C cooler than November and about 2°C warmer than January.

-40°-30°-20°-10°151015202531
Avg high (°C)Avg low (°C)
1-11-19
2-12-20
3-12-20
4-12-20
5-12-20
6-13-21
7-13-21
8-13-21
9-13-21
10-13-21
11-14-22
12-14-22
13-14-22
14-14-22
15-14-22
16-14-22
17-14-22
18-14-23
19-14-23
20-14-23
21-15-23
22-15-23
23-15-23
24-15-24
25-15-24
26-15-24
27-16-24
28-16-24
29-16-24
30-16-25
31-16-25

How December really feels in Tulun

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
31 feel bitter (≤ -10°C)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Tulun weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

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

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61783
71783
81783
91783
101783
111882
121882
131981
141981
151981
162080
172080
182179
192179
202179
212278
222278
232278
242278
252377
262377
272377
282278
292278
302377
312476

Chance of precipitation in December

Any precipitationSnow

Tulun gets around 14 mm of rain and snow over 4.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 16% and peaks near 18% on the wettest days, and about 7 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
11827
21827
31827
41826
51826
61826
71826
81826
91826
101826
111826
121826
131827
141827
151826
161726
171726
181625
191625
201524
211523
221423
231422
241321
251321
261220
271219
281219
291118
301118
311118

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 24 min at the start of December to 7 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 9:25 AM to 9:49 AM, and sunset from 4:50 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.49:254:50
27.49:274:49
37.39:284:48
47.39:304:48
57.39:314:47
67.29:324:47
77.29:344:46
87.29:354:46
97.29:364:45
107.19:374:45
117.19:384:45
127.19:394:45
137.19:404:45
147.19:414:45
157.09:424:45
167.09:434:45
177.09:444:45
187.09:444:45
197.09:454:45
207.09:464:46
217.09:464:46
227.09:474:46
237.09:474:47
247.09:484:48
257.09:484:48
267.09:484:49
277.09:484:50
287.09:494:50
297.09:494:51
307.19:494:52
317.19:494:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.64 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 6 kWh/m² in June across the year — December's 0.64 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.7Dim
20.7Dim
30.7Dim
40.7Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.6Dim
130.6Dim
140.6Dim
150.6Dim
160.6Dim
170.6Dim
180.6Dim
190.6Dim
200.6Dim
210.6Dim
220.6Dim
230.6Dim
240.6Dim
250.6Dim
260.6Dim
270.7Dim
280.7Dim
290.7Dim
300.7Dim
310.7Dim
Planning a trip in December

Is December a good time to visit Tulun?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Tulun.

What to pack for Tulun in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Tulun sees daytime highs around -14°C and nights near -22°C. Pack a warm layer and a heavy coat. About 5 days see rain.

a warm layera heavy coat

UV index in Tulun in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Tulun in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual 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
Location & terrain

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
December weather 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).