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Omsk Weather by Month
Average temperatures, rainfall and humidity for Omsk, Russia, month by month, built from OpenWeather's historical records. Use it to see what a typical Omsk month looks like before you travel — then check the live Omsk forecast for the days ahead.
Warmest month
July
25°C average high
Coolest month
January
-21°C average low
Wettest month
July
33 mm of rain
Driest month
January
0 mm of rain
Average temperature and rainfall in Omsk by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | -12°C | -21°C | -38°C / 2°C | 0 mm | 78% | 14 km/h |
| February | -10°C | -18°C | -38°C / 14°C | 0 mm | 78% | 14 km/h |
| March | -2°C | -11°C | -30°C / 14°C | 3 mm | 77% | 16 km/h |
| April | 11°C | 0°C | -12°C / 29°C | 18 mm | 60% | 17 km/h |
| May | 19°C | 6°C | -8°C / 36°C | 24 mm | 50% | 16 km/h |
| June | 24°C | 12°C | 1°C / 37°C | 28 mm | 57% | 14 km/h |
| July | 25°C | 14°C | 6°C / 40°C | 33 mm | 65% | 14 km/h |
| August | 23°C | 12°C | 1°C / 36°C | 28 mm | 67% | 13 km/h |
| September | 16°C | 5°C | -6°C / 32°C | 18 mm | 68% | 14 km/h |
| October | 7°C | -2°C | -18°C / 25°C | 19 mm | 75% | 15 km/h |
| November | -3°C | -10°C | -31°C / 17°C | 9 mm | 82% | 16 km/h |
| December | -10°C | -17°C | -39°C / 2°C | 0 mm | 81% | 15 km/h |
Best time to visit Omsk
The most comfortable time to visit Omsk is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 181 mm a year.
Travellers who prefer heat should aim for July, when highs average 25°C. July is the month to avoid if rain would spoil your plans — it averages 33 mm, roughly 33× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Omsk forecast for what is happening now.