Kos Town weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Kos Town in September based on long-term weather averages. There is usually 5 days with some rainfall and 17 mm of average monthly rainfall in September.

  • 28°C maximum daytime temperature in September in Kos Town28
    28°C max day temperature
  • 11 hours of sunshine per day
  • 5 days with some rainfall in September in Kos Town5
    5 days with some rainfall
  • 19°C minimum night-time temperature in September in Kos Town19
    19°C min night temperature
  • 12 hours of daylight per day in September in Kos Town12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Kos TownM
    Moderate heat & humidity
  • 17 mm monthly rainfall in September in Kos Town17
    17 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Kos Town7
    7 (High) UV index
  • 24°C sea temperature in September in Kos Town24
    24°C sea temperature

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The September weather guide for Kos (Kos Town) 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 hot is it in Kos Town in September?

Daytime temperatures usually reach 28°C in Kos Town in September with moderate heat and humidity, falling to 19°C at night.

How sunny is it in Kos Town in September?

There are normally 11 hours of bright sunshine each day in Kos Town in September - that's 90% of daylight hours.

How warm is the sea around Kos Town in September?

The average sea temperature around Kos Town in September is 24°C.

Does it rain in Kos Town in September?

There are usually 5 days with some rain in Kos Town in September and the average monthly rainfall is 17mm.

Kos Town September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:42 18:39
Monday, 15th September 2025 05:53 18:18
Tuesday, 30th September 2025 06:05 17:56

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