Thira weather in December 2026

Q: How warm is it in Thira in December?

Daytime temperatures usually reach 16°C in Thira in December, falling to 11°C at night.

Q: How sunny is it in Thira in December?

There are normally 4 hours of bright sunshine each day in Thira in December - that's 44% of daylight hours.

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

The average sea temperature around Thira in December is 17°C.

Q: Does it rain in Thira in December?

There are usually 12 days with some rain in Thira in December and the average monthly rainfall is 102mm.

Expect daytime maximum temperatures of 61°F in Thira, Santorini in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 4.0 inches of rainfall in the month.

61
61°F max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
52
52°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
4.0
4.0 inches of monthly rainfall
2
2 (Low) UV index
63
63°F sea temperature

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The December 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)