Omsk weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Omsk in September. Check more long-term weather averages for Omsk in September before you book your next holiday to Russia (Central Asia) in 2025/2026.

  • 16°C maximum daytime temperature in September in Omsk16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Omsk12
    12 days with some rainfall
  • 6°C minimum night-time temperature in September in Omsk6
    6°C min night temperature
  • 13 hours of daylight per day in September in Omsk13
    13 hours of daylight per day
  • No heat & humidity in September in Omsk0
    No heat & humidity
  • 33 mm monthly rainfall in September in Omsk33
    33 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Omsk3
    3 (Moderate) UV index

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The September weather guide for Russia (Central Asia) (Omsk) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Omsk in September?

Daytime temperatures usually reach 16°C in Omsk in September, falling to 6°C at night.

How sunny is it in Omsk in September?

There are normally 6 hours of bright sunshine each day in Omsk in September - that's 47% of daylight hours.

Does it rain in Omsk in September?

There are usually 12 days with some rain in Omsk in September and the average monthly rainfall is 33mm.

Omsk September sunrise & sunset times

Browse the sunrise and sunset times for Omsk in September 2025. Select a month to view Omsk sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:13 19:59
Monday, 15th September 2025 06:39 19:23
Tuesday, 30th September 2025 07:07 18:45

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