Kolios weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Kolios in September. Check more long-term weather averages for Kolios in September before you book your next holiday to Skiathos in 2025/2026.

  • 26°C maximum daytime temperature in September in Kolios26
    26°C max day temperature
  • 9 hours of sunshine per day
  • 3 days with some rainfall in September in Kolios3
    3 days with some rainfall
  • 15°C minimum night-time temperature in September in Kolios15
    15°C min night temperature
  • 12 hours of daylight per day in September in Kolios12
    12 hours of daylight per day
  • Low heat & humidity in September in KoliosL
    Low heat & humidity
  • 38 mm monthly rainfall in September in Kolios38
    38 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Kolios6
    6 (High) UV index
  • 24°C sea temperature in September in Kolios24
    24°C sea temperature

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The September weather guide for Skiathos (Kolios) 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 Kolios in September?

Daytime temperatures usually reach 26°C in Kolios in September with low heat and humidity, falling to 15°C at night.

How sunny is it in Kolios in September?

There are normally 9 hours of bright sunshine each day in Kolios in September - that's 76% of daylight hours.

How warm is the sea around Kolios in September?

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

Does it ever rain in Kolios in September?

There are usually 3 days with some rain in Kolios in September and the average monthly rainfall is 38mm.

Kolios September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:55 18:57
Monday, 15th September 2025 06:08 18:35
Tuesday, 30th September 2025 06:21 18:10

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