Megalochori weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Megalochori in September based on long-term weather averages. There is usually 1 day with some rainfall and 13 mm of average monthly rainfall in September.

  • 25°C maximum daytime temperature in September in Megalochori25
    25°C max day temperature
  • 10 hours of sunshine per day
  • 1 day with some rainfall in September in Megalochori1
    1 day with some rainfall
  • 20°C minimum night-time temperature in September in Megalochori20
    20°C min night temperature
  • 12 hours of daylight per day in September in Megalochori12
    12 hours of daylight per day
  • Low heat & humidity in September in MegalochoriL
    Low heat & humidity
  • 13 mm monthly rainfall in September in Megalochori13
    13 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Megalochori7
    7 (High) UV index
  • 24°C sea temperature in September in Megalochori24
    24°C sea temperature

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Megalochori by month

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The September weather guide for Santorini (Megalochori) 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 Greece

How hot is it in Megalochori in September?

Daytime temperatures usually reach 25°C in Megalochori in September with low heat and humidity, falling to 20°C at night.

How sunny is it in Megalochori in September?

There are normally 10 hours of bright sunshine each day in Megalochori in September - that's 83% of daylight hours.

How warm is the sea around Megalochori in September?

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

Does it ever rain in Megalochori in September?

There is usually 1 day with some rain in Megalochori in September and the average monthly rainfall is 13mm.

Megalochori September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:50 18:46
Monday, 15th September 2025 06:01 18:26
Tuesday, 30th September 2025 06:13 18:03

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