Sicily weather in September
Sicily averages 27°C by day and 21°C at night in September, with the sea at 26°C and about 60 mm of rain in the month. It cools by about 4°C into October.
Day
27°C
Night
21°C
Sea
26°C
Rain
60 mm
Flight from London
2½h
What September feels like
September is hot in Sicily: proper beach weather.
The sea is warm at 26°C: comfortable for long swims.
Rain is occasional: about 60 mm in the month.
That is 8°C warmer than an average September day in London.
Of the 56 sun destinations we track, Sicily is the #44 warmest in September, and #17 of 23 within 5½ hours of the UK.
Going to Sicily in September?
Share the TikToks and Instagram Reels you've saved for Sicily to Dream Trip. It finds the places, pins them on a map and builds your days around them.
Want it warmer in September?
These are hotter than Sicily this month for at most an hour and a half more flying:
Sicily weather by month
September is highlighted. Compare with August and October, or see the full year in Sicily.
Sicily in September: quick answers
Is Sicily hot in September?
September is hot in Sicily: proper beach weather. Average highs are 27°C and lows 21°C.
Can you swim in Sicily in September?
The sea is warm at 26°C: comfortable for long swims.
Does it rain in Sicily in September?
Rain is occasional: about 60 mm in the month.
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 September for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in September 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. Rain is the average monthly total. 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 September?
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.
