Sicily weather in December
Sicily averages 16°C by day and 11°C at night in December, with the sea at 18°C and 11 days with at least 1 mm of rain. It cools by about 2°C into January.
Day
16°C
Night
11°C
Sea
18°C
Rainy days
11
Flight from London
2½h
What December feels like
December is mild in Sicily: good for exploring, not reliably beach weather.
The sea is 18°C: cold for swimming, so plan on a heated pool.
Expect some rain: about 11 days with at least 1 mm.
Of the 48 sun destinations we track, Sicily is the #46 warmest in December, and #21 of 23 within 5½ hours of the UK.
Want it warmer in December?
These are hotter than Sicily this month for at most an hour and a half more flying:
Sicily weather by month
December is highlighted. Compare with November and January, or see the full year in Sicily.
Sicily in December: quick answers
Is Sicily hot in December?
December is mild in Sicily: good for exploring, not reliably beach weather. Average highs are 16°C and lows 11°C.
Can you swim in Sicily in December?
The sea is 18°C: cold for swimming, so plan on a heated pool.
Does it rain in Sicily in December?
Expect some rain: about 11 days with at least 1 mm.
What is the warmest month in Sicily?
July, at an average high of 31°C. The coolest is January at 15°C.
How long is the flight to Sicily from the UK?
About 2½h direct from London, estimated from the 1,835 km distance. Check your airline for exact times.
Still choosing? See where is hot in December for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in December from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Sicily in December?
Save the restaurants, beaches and views you find on TikTok and Instagram for Sicily straight to a map, then let Dream Trip turn them into a day-by-day plan.
