Irkutsk weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: May – August
What is the weather like in Irkutsk in August?
In August, Irkutsk is warm: daytime highs average 22 °C, and nights cool down to about 12 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 80 mm in total. All in all, August is an excellent month for a holiday in Irkutsk.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 81 | 80 | 67 |
| Day | 25° | 22° | 16° |
| Night | 14° | 12° | 6° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 12 | 11 | 10 |
More details for August
- Daylight
- 14 h 46 min05:45 – 20:31
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+8Asia/Irkutsk
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %50 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Irkutsk in August: quick answers
Is Irkutsk hot in August?
Warm rather than hot: in August, daytime highs in Irkutsk average 22 °C and nights cool to about 12 °C.
Does it rain much in Irkutsk in August?
Rain is frequent, with about 11 rainy days and 80 mm in total.
Irkutsk month by month
The whole year in IrkutskAll destinations: RussiaWhere to go in August
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