Monthly climate guide
Omsk weather in September
September in Omsk is typically mild, with average daytime highs around 16°C (61°F) and night-time lows near 6°C (42°F). The month usually brings about 30 mm of rain (fairly dry) and is often cloudy. Daytime highs are 7°C cooler than August and 10°C warmer than October.
What stands out in September
- Temperatures are falling — expect highs around 10°C lower by October.
- Seasonally, September counts as early autumn in Omsk.
- Omsk is usually about 2°C cooler than Ryazan in September.
Avg high
16°C
61°F
Avg low
6°C
42°F
Rainfall
30 mm
fairly dry
Humidity
70%
relative
Sky
67%
cloud · often cloudy
Omsk weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -16°C / 3°F | -24°C / -11°F | 17 mm | 97% | 65% |
| February | -12°C / 11°F | -19°C / -3°F | 17 mm | 97% | 69% |
| March | -3°C / 26°F | -12°C / 11°F | 25 mm | 95% | 69% |
| April | 10°C / 49°F | -1°C / 30°F | 35 mm | 76% | 66% |
| May | 17°C / 62°F | 4°C / 40°F | 50 mm | 66% | 58% |
| June | 23°C / 73°F | 12°C / 53°F | 56 mm | 66% | 59% |
| July | 24°C / 76°F | 14°C / 57°F | 70 mm | 68% | 60% |
| August | 23°C / 74°F | 12°C / 54°F | 47 mm | 66% | 61% |
| September | 16°C / 61°F | 6°C / 42°F | 30 mm | 70% | 67% |
| October | 6°C / 42°F | -2°C / 29°F | 42 mm | 80% | 76% |
| November | -6°C / 21°F | -13°C / 9°F | 32 mm | 92% | 75% |
| December | -13°C / 8°F | -20°C / -4°F | 26 mm | 96% | 75% |
What to pack for September
- A warm sweater or fleece for layering
- A mid-weight jacket
Is September a good time to visit Omsk?
Compare the months in the chart above to find your ideal window.
Best time to visit Omsk →Other Russia cities in September
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Omsk weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/russia/omsk/september
<a href="https://weathercompare.eu/weather/russia/omsk/september">Omsk weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/russia/omsk" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Omsk weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/russia/omsk/september">Omsk weather in September</a> – WeatherCompare</p>
Omsk in September: quick answers
Is September a good time to visit Omsk?
Yes. September is one of the best months for Omsk, with highs around 16°C and about 30 mm of rain.
How warm is Omsk in September?
Average highs are about 16°C (61°F) and average lows about 6°C (42°F), based on 10 years of daily data.
Does it rain a lot in Omsk in September?
Omsk typically gets around 30 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Omsk (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.