Thira weather in May 2026

Q: How hot is it in Thira in May?

Daytime temperatures usually reach 22°C in Thira in May, falling to 15°C at night.

Q: How sunny is it in Thira in May?

There are normally 10 hours of bright sunshine each day in Thira in May - that's 73% of daylight hours.

Q: How warm is the sea around Thira in May?

The average sea temperature around Thira in May is 19°C.

Q: Does it ever rain in Thira in May?

There are usually 3 days with some rain in Thira in May and the average monthly rainfall is 14mm.

Expect daytime maximum temperatures of 72°F in Thira, Santorini in May based on long-term weather averages. There are 10 hours of sunshine per day on average.

72
72°F max day temperature
10
10 hours of sunshine per day
3
3 days with some rainfall
59
59°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
0.6
0.6 inches of monthly rainfall
8
8 (Very High) UV index
66
66°F sea temperature

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The May 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.

Metric (°C) | Imperial (°F)