Ostrava weather in September 2025

Expect 19°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Ostrava in September. Check more long-term weather averages for Ostrava in September before you book your next holiday to Czech Republic in 2025/2026.

  • 19°C maximum daytime temperature in September in Ostrava19
    19°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Ostrava12
    12 days with some rainfall
  • 9°C minimum night-time temperature in September in Ostrava9
    9°C min night temperature
  • 13 hours of daylight per day in September in Ostrava13
    13 hours of daylight per day
  • No heat & humidity in September in Ostrava0
    No heat & humidity
  • 57 mm monthly rainfall in September in Ostrava57
    57 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Ostrava4
    4 (Moderate) UV index

More about the Ostrava

Ostrava by month

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The September weather guide for Czech Republic (Ostrava) 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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More about the Czech Republic

How hot is it in Ostrava in September?

Daytime temperatures usually reach 19°C in Ostrava in September, falling to 9°C at night.

How sunny is it in Ostrava in September?

There are normally 5 hours of bright sunshine each day in Ostrava in September - that's 39% of daylight hours.

Does it rain in Ostrava in September?

There are usually 12 days with some rain in Ostrava in September and the average monthly rainfall is 57mm.

Ostrava September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:02 18:30
Monday, 15th September 2025 05:23 18:00
Tuesday, 30th September 2025 05:45 17:27

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