Poland weather in September 2025

Expect daytime maximum temperatures of 18°C in Poland in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 45 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Poland (Warsaw)18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Poland (Warsaw)12
    12 days with some rainfall
  • 9°C minimum night-time temperature in September in Poland (Warsaw)9
    9°C min night temperature
  • 13 hours of daylight per day in September in Poland (Warsaw)13
    13 hours of daylight per day
  • No heat & humidity in September in Poland (Warsaw)0
    No heat & humidity
  • 45 mm monthly rainfall in September in Poland (Warsaw)45
    45 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Poland (Warsaw)4
    4 (Moderate) UV index

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The September weather guide for Poland (Warsaw) 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 Poland destinations

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

All Poland destinations

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

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More about Poland

How hot is it in Poland in September?

Daytime temperatures usually reach 18°C in Warsaw, Poland in September, falling to 9°C at night.

How sunny is it in Poland in September?

There are normally 5 hours of bright sunshine each day in Warsaw, Poland in September - that's 38% of daylight hours.

Does it rain in Poland in September?

There are usually 12 days with some rain in Warsaw, Poland in September and the average monthly rainfall is 45mm.

Poland September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:47 18:23
Monday, 15th September 2025 05:10 17:51
Tuesday, 30th September 2025 05:35 17:15

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