Seychelles weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Seychelles in September. Check more long-term weather averages for Seychelles in September before you book your next holiday to Seychelles in 2025/2026.

  • 28°C maximum daytime temperature in September in Seychelles (Mahe)28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 15 days with some rainfall in September in Seychelles (Mahe)15
    15 days with some rainfall
  • 24°C minimum night-time temperature in September in Seychelles (Mahe)24
    24°C min night temperature
  • 12 hours of daylight per day in September in Seychelles (Mahe)12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Seychelles (Mahe)M
    Moderate heat & humidity
  • 134 mm monthly rainfall in September in Seychelles (Mahe)134
    134 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Seychelles (Mahe)11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Seychelles (Mahe)27
    27°C sea temperature

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The September weather guide for Seychelles (Mahe) 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.

Top Seychelles destinations

Below are average maximum temperatures at popular countries, regions and places in the Seychelles in September. Select a holiday destination to see more weather parameters.

All Seychelles destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the Seychelles

How hot is it in the Seychelles in September?

Daytime temperatures usually reach 28°C in Mahe, Seychelles in September with moderate heat and humidity, falling to 24°C at night.

How sunny is it in the Seychelles in September?

There are normally 8 hours of bright sunshine each day in Mahe, Seychelles in September - that's 64% of daylight hours.

How warm is the sea around the Seychelles in September?

The average sea temperature around Mahe, Seychelles in September is 27°C.

Does it rain in the Seychelles in September?

There are usually 15 days with some rain in Mahe, Seychelles in September and the average monthly rainfall is 134mm.

Seychelles September sunrise & sunset times

Browse the sunrise and sunset times for Seychelles in September 2025. Select a month to view Seychelles sunrise and sunset times for the next 12 months. The Seychelles sunrise and sunset times shown below are for Mahe.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:18 18:19
Monday, 15th September 2025 06:11 18:16
Tuesday, 30th September 2025 06:04 18:12

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