Silhouette weather in September 2025

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

  • 28°C maximum daytime temperature in September in Silhouette28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in September in Silhouette14
    14 days with some rainfall
  • 24°C minimum night-time temperature in September in Silhouette24
    24°C min night temperature
  • 12 hours of daylight per day in September in Silhouette12
    12 hours of daylight per day
  • Moderate heat & humidity in September in SilhouetteM
    Moderate heat & humidity
  • 134 mm monthly rainfall in September in Silhouette134
    134 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Silhouette11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Silhouette27
    27°C sea temperature

More about the Silhouette

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The September weather guide for Seychelles (Silhouette) 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 the Seychelles

How hot is it in Silhouette in September?

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

How sunny is it in Silhouette in September?

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

How warm is the sea around Silhouette in September?

The average sea temperature around Silhouette in September is 27°C.

Does it rain in Silhouette in September?

There are usually 14 days with some rain in Silhouette in September and the average monthly rainfall is 134mm.

Silhouette September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:18 18:20
Monday, 15th September 2025 06:12 18:17
Tuesday, 30th September 2025 06:05 18:13

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