Bastia weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Bastia in September. Check more long-term weather averages for Bastia in September before you book your next holiday to Corsica in 2025/2026.

  • 22°C maximum daytime temperature in September in Bastia22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Bastia8
    8 days with some rainfall
  • 16°C minimum night-time temperature in September in Bastia16
    16°C min night temperature
  • 12 hours of daylight per day in September in Bastia12
    12 hours of daylight per day
  • No heat & humidity in September in Bastia0
    No heat & humidity
  • 60 mm monthly rainfall in September in Bastia60
    60 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Bastia6
    6 (High) UV index
  • 23°C sea temperature in September in Bastia23
    23°C sea temperature

More about Bastia

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The September weather guide for Corsica (Bastia) 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)

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More about Corsica

How hot is it in Bastia in September?

Daytime temperatures usually reach 22°C in Bastia in September, falling to 16°C at night.

How sunny is it in Bastia in September?

There are normally 7 hours of bright sunshine each day in Bastia in September - that's 59% of daylight hours.

How warm is the sea around Bastia in September?

The average sea temperature around Bastia in September is 23°C.

Does it rain in Bastia in September?

There are usually 8 days with some rain in Bastia in September and the average monthly rainfall is 60mm.

Bastia September sunrise & sunset times

Browse the sunrise and sunset times for Bastia in September 2025. Select a month to view Bastia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:47 18:56
Monday, 15th September 2025 06:02 18:32
Tuesday, 30th September 2025 06:18 18:05

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