Santorini weather in April 2025

Expect 66°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Santorini in April. Check more long-term weather averages for Santorini in April before you book your next holiday to Santorini in 2025/2026.

  • 66°F maximum daytime temperature in April in Santorini (Thira)66
    66°F max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in April in Santorini (Thira)5
    5 days with some rainfall
  • 54°F minimum night-time temperature in April in Santorini (Thira)54
    54°F min night temperature
  • 13 hours of daylight per day in April in Santorini (Thira)13
    13 hours of daylight per day
  • No heat & humidity in April in Santorini (Thira)0
    No heat & humidity
  • 1.1 inches monthly rainfall in April in Santorini (Thira)1.1
    1.1 inches of monthly rainfall
  • UV (maximum) index 7 (High) in April in Santorini (Thira)7
    7 (High) UV index
  • 61°F sea temperature in April in Santorini (Thira)61
    61°F sea temperature

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The April 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 April. Select a holiday destination to see more weather parameters.

All Santorini destinations

Metric (°C)  |  Imperial (°F)

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How hot is it in Santorini in April?

Daytime temperatures usually reach 66°F in Thira, Santorini in April, falling to 54°F at night.

How sunny is it in Santorini in April?

There are normally 8 hours of bright sunshine each day in Thira, Santorini in April - that's 62% of daylight hours.

How warm is the sea around Santorini in April?

The average sea temperature around Thira, Santorini in April is 61°F.

Does it rain in Santorini in April?

There are usually 5 days with some rain in Thira, Santorini in April and the average monthly rainfall is 1.1 inches.

Santorini April sunrise & sunset times

Browse the sunrise and sunset times for Santorini in April 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
Tuesday, 1st April 2025 06:04 18:40
Tuesday, 15th April 2025 05:45 18:52
Wednesday, 30th April 2025 05:26 19:05

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