Palermo weather in September 2026

Q: How hot is it in Palermo in September?

Daytime temperatures usually reach 26°C in Palermo in September with low heat and humidity, falling to 19°C at night.

Q: How sunny is it in Palermo in September?

There are normally 8 hours of bright sunshine each day in Palermo in September - that's 66% of daylight hours.

Q: How warm is the sea around Palermo in September?

The average sea temperature around Palermo in September is 25°C.

Q: Does it rain in Palermo in September?

There are usually 5 days with some rain in Palermo in September and the average monthly rainfall is 37mm.

Expect daytime maximum temperatures of 26°C in Palermo, Sicily in September based on long-term weather averages. There are 8 hours of sunshine per day on average.

26
26°C max day temperature
8
8 hours of sunshine per day
5
5 days with some rainfall
19
19°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
37
37 mm of monthly rainfall
7
7 (High) UV index
25
25°C sea temperature

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The September weather guide for Sicily (Palermo) 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 / mm) | Imperial (°F / inches)