Cannes weather in September 2025

Expect 24°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cannes in September. Check more long-term weather averages for Cannes in September before you book your next holiday to France in 2025/2026.

  • 24°C maximum daytime temperature in September in Cannes24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in September in Cannes6
    6 days with some rainfall
  • 16°C minimum night-time temperature in September in Cannes16
    16°C min night temperature
  • 12 hours of daylight per day in September in Cannes12
    12 hours of daylight per day
  • No heat & humidity in September in Cannes0
    No heat & humidity
  • 66 mm monthly rainfall in September in Cannes66
    66 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Cannes5
    5 (Moderate) UV index
  • 22°C sea temperature in September in Cannes22
    22°C sea temperature

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The September weather guide for France (Cannes) 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 France

How hot is it in Cannes in September?

Daytime temperatures usually reach 24°C in Cannes in September, falling to 16°C at night.

How sunny is it in Cannes in September?

There are normally 8 hours of bright sunshine each day in Cannes in September - that's 63% of daylight hours.

How warm is the sea around Cannes in September?

The average sea temperature around Cannes in September is 22°C.

Does it rain in Cannes in September?

There are usually 6 days with some rain in Cannes in September and the average monthly rainfall is 66mm.

Cannes September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:56 19:07
Monday, 15th September 2025 06:11 18:42
Tuesday, 30th September 2025 06:28 18:15

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