Sousse weather in September 2026

Q: How hot is it in Sousse in September?

Daytime temperatures usually reach 30°C in Sousse in September with moderate heat and humidity, falling to 21°C at night.

Q: How sunny is it in Sousse in September?

There are normally 9 hours of bright sunshine each day in Sousse in September - that's 70% of daylight hours.

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

The average sea temperature around Sousse in September is 26°C.

Q: Does it ever rain in Sousse in September?

There are usually 3 days with some rain in Sousse in September and the average monthly rainfall is 34mm.

Expect daytime maximum temperatures of 30°C in Sousse, Tunisia in September and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.

30
30°C max day temperature
9
9 hours of sunshine per day
4
4 days with some rainfall
21
21°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
35
35 mm of monthly rainfall
7
7 (High) UV index
26
26°C sea temperature

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The September weather guide for Tunisia (Sousse) 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)