Rethymnon weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Rethymnon in September. Check more long-term weather averages for Rethymnon in September before you book your next holiday to Crete in 2025/2026.

  • 27°C maximum daytime temperature in September in Rethymnon27
    27°C max day temperature
  • 10 hours of sunshine per day
  • 1 day with some rainfall in September in Rethymnon1
    1 day with some rainfall
  • 19°C minimum night-time temperature in September in Rethymnon19
    19°C min night temperature
  • 12 hours of daylight per day in September in Rethymnon12
    12 hours of daylight per day
  • Low heat & humidity in September in RethymnonL
    Low heat & humidity
  • 19 mm monthly rainfall in September in Rethymnon19
    19 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Rethymnon7
    7 (High) UV index
  • 25°C sea temperature in September in Rethymnon25
    25°C sea temperature

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The September weather guide for Crete (Rethymnon) 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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More about Crete

How hot is it in Rethymnon in September?

Daytime temperatures usually reach 27°C in Rethymnon in September with low heat and humidity, falling to 19°C at night.

How sunny is it in Rethymnon in September?

There are normally 10 hours of bright sunshine each day in Rethymnon in September - that's 77% of daylight hours.

How warm is the sea around Rethymnon in September?

The average sea temperature around Rethymnon in September is 25°C.

Does it ever rain in Rethymnon in September?

There is usually 1 day with some rain in Rethymnon in September and the average monthly rainfall is 19mm.

Rethymnon September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:55 18:49
Monday, 15th September 2025 06:05 18:29
Tuesday, 30th September 2025 06:16 18:07

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