Santorini weather in October 2025

Expect daytime maximum temperatures of 22°C in Santorini, Greece in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 61 mm of rainfall in the month.

  • 22°C maximum daytime temperature in October in Santorini (Thira)22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 4 days with some rainfall in October in Santorini (Thira)4
    4 days with some rainfall
  • 16°C minimum night-time temperature in October in Santorini (Thira)16
    16°C min night temperature
  • 11 hours of daylight per day in October in Santorini (Thira)11
    11 hours of daylight per day
  • No heat & humidity in October in Santorini (Thira)0
    No heat & humidity
  • 61 mm monthly rainfall in October in Santorini (Thira)61
    61 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Santorini (Thira)5
    5 (Moderate) UV index
  • 22°C sea temperature in October in Santorini (Thira)22
    22°C sea temperature

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The October weather guide for Santorini (Thira) 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.

Top Santorini destinations

Below are average maximum temperatures at popular countries, regions and places in Santorini in October. Select a holiday destination to see more weather parameters.

All Santorini destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Santorini in October?

Daytime temperatures usually reach 22°C in Thira, Santorini in October, falling to 16°C at night.

How sunny is it in Santorini in October?

There are normally 7 hours of bright sunshine each day in Thira, Santorini in October - that's 63% of daylight hours.

How warm is the sea around Santorini in October?

The average sea temperature around Thira, Santorini in October is 22°C.

Does it rain in Santorini in October?

There are usually 4 days with some rain in Thira, Santorini in October and the average monthly rainfall is 61mm.

Santorini October sunrise & sunset times

Browse the sunrise and sunset times for Santorini in October 2025. Select a month to view Santorini sunrise and sunset times for the next 12 months. The Santorini sunrise and sunset times shown below are for Thira.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:13 18:02
Thursday, 16th October 2025 06:26 17:41
Friday, 31st October 2025 06:41 17:23

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