Estonia weather in September 2025

Expect daytime maximum temperatures of 14°C in Estonia in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 80 mm of rainfall in the month.

  • 14°C maximum daytime temperature in September in Estonia (Tallinn)14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in September in Estonia (Tallinn)17
    17 days with some rainfall
  • 7°C minimum night-time temperature in September in Estonia (Tallinn)7
    7°C min night temperature
  • 13 hours of daylight per day in September in Estonia (Tallinn)13
    13 hours of daylight per day
  • No heat & humidity in September in Estonia (Tallinn)0
    No heat & humidity
  • 80 mm monthly rainfall in September in Estonia (Tallinn)80
    80 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Estonia (Tallinn)3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Estonia (Tallinn)14
    14°C sea temperature

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The September weather guide for Estonia (Tallinn) 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 Estonia destinations

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

All Estonia destinations

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

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How warm is it in Estonia in September?

Daytime temperatures usually reach 14°C in Tallinn, Estonia in September, falling to 7°C at night.

How sunny is it in Estonia in September?

There are normally 5 hours of bright sunshine each day in Tallinn, Estonia in September - that's 36% of daylight hours.

How warm is the sea around Estonia in September?

The average sea temperature around Tallinn, Estonia in September is 14°C.

Does it rain in Estonia in September?

There are usually 17 days with some rain in Tallinn, Estonia in September and the average monthly rainfall is 80mm.

Estonia September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:18 19:23
Monday, 15th September 2025 05:50 18:41
Tuesday, 30th September 2025 06:24 17:57

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