Heraklion weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Heraklion in September. Check more long-term weather averages for Heraklion in September before you book your next holiday to Crete in 2025/2026.

  • 25°C maximum daytime temperature in September in Heraklion25
    25°C max day temperature
  • 10 hours of sunshine per day
  • 1 day with some rainfall in September in Heraklion1
    1 day with some rainfall
  • 18°C minimum night-time temperature in September in Heraklion18
    18°C min night temperature
  • 12 hours of daylight per day in September in Heraklion12
    12 hours of daylight per day
  • Low heat & humidity in September in HeraklionL
    Low heat & humidity
  • 23 mm monthly rainfall in September in Heraklion23
    23 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Heraklion8
    8 (Very High) UV index
  • 24°C sea temperature in September in Heraklion24
    24°C sea temperature

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The September weather guide for Crete (Heraklion) 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 Heraklion in September?

Daytime temperatures usually reach 25°C in Heraklion in September with low heat and humidity, falling to 18°C at night.

How sunny is it in Heraklion in September?

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

How warm is the sea around Heraklion in September?

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

Does it ever rain in Heraklion in September?

There is usually 1 day with some rain in Heraklion in September and the average monthly rainfall is 23mm.

Heraklion September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:52 18:46
Monday, 15th September 2025 06:02 18:26
Tuesday, 30th September 2025 06:14 18:05

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