Irkutsk weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: May – August
What is the weather like in Irkutsk in December?
In December, Irkutsk is freezing cold: daytime highs average −12 °C, and nights often drop below freezing (−20 °C). The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 3 days, totalling 9 mm. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Irkutsk.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 31 | 30 | 32 |
| Day | −3° | −12° | −14° |
| Night | −11° | −20° | −23° |
| Sun | 3 h | 2 h | 4 h |
| Rain days | 3 | 3 | 2 |
More details for December
- Daylight
- 7 h 44 min09:06 – 16:50
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 3 days1 cm or more of fresh snowAll months
- Time zone
- UTC+8Asia/Irkutsk
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Warm jacket
- Hat, scarf & gloves
Irkutsk in December: quick answers
Is Irkutsk hot in December?
No. In December, Irkutsk is freezing cold: daytime highs average −12 °C and nights drop to about −20 °C.
Does it rain much in Irkutsk in December?
Rain is rare: about 3 days bring 9 mm in total.
Irkutsk month by month
The whole year in IrkutskAll destinations: RussiaWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences