Best Time to Visit Irkutsk
Best time: Jun, May, Aug, Jul.
Jul is warmest (24.3°C high); Jul is rainiest (103 mm).
Irkutsk weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | -13.8 | -23.2 | 11 | 1.6 |
| Feb | -9.1 | -21.5 | 6 | 3.3 |
| Mar | -0.5 | -13.8 | 7 | 5.8 |
| Apr | 8.9 | -3.5 | 14 | 7.5 |
| May | 17.4 | 2.7 | 29 | 8.9 |
| Jun | 22.6 | 8.6 | 66 | 9.4 |
| Jul | 24.3 | 12.2 | 103 | 8.5 |
| Aug | 21.9 | 10.2 | 84 | 7.3 |
| Sep | 15.3 | 3.6 | 51 | 5.4 |
| Oct | 7.1 | -3.7 | 20 | 3.5 |
| Nov | -3.5 | -13 | 16 | 1.9 |
| Dec | -10.9 | -20 | 15 | 1.2 |
Average high temperature
Best months by activity
Overall: JunMayAugJul
Beaches: AprMarMayFeb
Hiking: MayJunAprSep
Sightseeing: JunMayAugJul
Irkutsk quick facts
What to pack
Cold months (Jan, Feb, Mar, Apr, Oct, Nov, Dec): warm layers and a coat.
Wet months (Jul): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Irkutsk?
Jun, May, Aug, Jul.
What is the rainiest month?
Jul, about 103 mm.
What is the warmest month?
Jul, with average highs of 24.3°C.
Where to stay
Book Irkutsk hotels · Irkutsk tours & activities
All destinations · Best time to visit Zyuzino · Best time to visit Zyablikovo · Best time to visit Zlatoust · Best time to visit Zhulebino
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.