Weather in Irkutsk
What's the weather like in Irkutsk?
Irkutsk has a wide swing between hot summers and cold winters and moderate rainfall spread across the year. Average daytime highs range from -14°C (6°F) in January to 25°C (77°F) in July, with overnight lows around -23°C (-9°F) and 14°C (57°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Irkutsk are June through August.
Quick facts
- Country
- 🇷🇺 Russia
- Region
- Asia
- Time zone
- Asia/Irkutsk
- Coordinates
- 52.287, 104.305
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -14°C / 6°F | -23°C / -9°F | 10 mm | 10 | — |
| February | -10°C / 14°F | -20°C / -4°F | 8 mm | 9 | — |
| March | 1°C / 34°F | -11°C / 13°F | 13 mm | 9 | — |
| April | 11°C / 51°F | -2°C / 28°F | 22 mm | 13 | — |
| May | 17°C / 62°F | 3°C / 38°F | 42 mm | 16 | — |
| June | 24°C / 74°F | 11°C / 51°F | 58 mm | 16 | — |
| July | 25°C / 77°F | 14°C / 57°F | 101 mm | 17 | — |
| August | 22°C / 72°F | 13°C / 55°F | 91 mm | 16 | — |
| September | 15°C / 60°F | 6°C / 43°F | 62 mm | 14 | — |
| October | 7°C / 45°F | -2°C / 29°F | 17 mm | 11 | — |
| November | -4°C / 24°F | -12°C / 10°F | 12 mm | 11 | — |
| December | -12°C / 10°F | -20°C / -5°F | 14 mm | 11 | — |
Irkutsk by month
Detailed weather for any specific month:
Cities with a similar climate to Irkutsk
Frequently asked questions
When is the best time to visit Irkutsk?
The most comfortable months in Irkutsk are usually June, July, August, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Irkutsk?
July is typically the hottest month in Irkutsk, averaging a high of 25°C (77°F).
What is the coldest month in Irkutsk?
January is usually the coldest, with average lows around -23°C (-9°F).
Does it snow in Irkutsk?
Snow is rare in Irkutsk; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.