Irkutsk weather in October
Temperature, rain and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Poor
Best time to visit: May – August
What is the weather like in Irkutsk in October?
In October, Irkutsk is cold: daytime highs average 7 °C, and nights often drop below freezing (−2 °C). Expect around 5 hours of sunshine a day. Rain falls on about 5 days, adding up to 19 mm. Snow falls on about 2 days. All in all, October is not an ideal month for a holiday in Irkutsk.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 67 | 34 | 31 |
| Day | 16° | 7° | −3° |
| Night | 6° | −2° | −11° |
| Sun | 6 h | 5 h | 3 h |
| Rain days | 10 | 5 | 3 |
More details for October
- Daylight
- 10 h 45 min07:26 – 18:11
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC+8Asia/Irkutsk
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %91 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Warm jacket
Irkutsk in October: quick answers
Is Irkutsk hot in October?
No. In October, Irkutsk is cold: daytime highs average 7 °C and nights drop to about −2 °C.
Does it rain much in Irkutsk in October?
Rain falls on about 5 days, adding up to 19 mm.
Irkutsk month by month
The whole year in IrkutskAll destinations: RussiaWhere to go in October
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