Czech Republic weather in September 2025

Expect 20°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Czech Republic in September. Check more long-term weather averages for Czech Republic in September before you book your next holiday to Czech Republic in 2025/2026.

• 20
  20°C max day temperature
• 5
  5 hours of sunshine per day
• 11
  11 days with some rainfall
• 9
  9°C min night temperature
• 13
  13 hours of daylight per day
• 0
  No heat & humidity
• 43
  43 mm of monthly rainfall
• 4
  4 (Moderate) UV index

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The September weather guide for Czech Republic (Prague) 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.

Top Czech Republic destinations

Below are average maximum temperatures at popular countries, regions and places in the Czech Republic in September. Select a holiday destination to see more weather parameters.

• 20
  Prague
• 19
  Brno
• 19
  Ostrava
• 17
  Karlovy Vary
• 17
  Telc
• 16
  Cesky Krumlov

All Czech Republic destinations

• Brno
• Cesky Krumlov
• Karlovy Vary
• Ostrava
• Prague
• Telc

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

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More about the Czech Republic

Czech Republic September sunrise & sunset times

Browse the sunrise and sunset times for Czech Republic in September 2025. Select a month to view Czech Republic sunrise and sunset times for the next 12 months. The Czech Republic sunrise and sunset times shown below are for Prague.

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