Marmari weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Marmari in September. Check more long-term weather averages for Marmari in September before you book your next holiday to Kos in 2025/2026.

  • 28°C maximum daytime temperature in September in Marmari28
    28°C max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in September in Marmari4
    4 days with some rainfall
  • 19°C minimum night-time temperature in September in Marmari19
    19°C min night temperature
  • 12 hours of daylight per day in September in Marmari12
    12 hours of daylight per day
  • Moderate heat & humidity in September in MarmariM
    Moderate heat & humidity
  • 16 mm monthly rainfall in September in Marmari16
    16 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Marmari7
    7 (High) UV index
  • 24°C sea temperature in September in Marmari24
    24°C sea temperature

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The September weather guide for Kos (Marmari) 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 Marmari in September?

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

How sunny is it in Marmari in September?

There are normally 11 hours of bright sunshine each day in Marmari in September - that's 89% of daylight hours.

How warm is the sea around Marmari in September?

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

Does it rain in Marmari in September?

There are usually 4 days with some rain in Marmari in September and the average monthly rainfall is 16mm.

Marmari September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:42 18:40
Monday, 15th September 2025 05:54 18:19
Tuesday, 30th September 2025 06:06 17:56

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