Sainte Marie Island weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Sainte Marie Island in September. Check more long-term weather averages for Sainte Marie Island in September before you book your next holiday to Madagascar in 2025/2026.

  • 26°C maximum daytime temperature in September in Sainte Marie Island26
    26°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in September in Sainte Marie Island16
    16 days with some rainfall
  • 17°C minimum night-time temperature in September in Sainte Marie Island17
    17°C min night temperature
  • 12 hours of daylight per day in September in Sainte Marie Island12
    12 hours of daylight per day
  • Low heat & humidity in September in Sainte Marie IslandL
    Low heat & humidity
  • 99 mm monthly rainfall in September in Sainte Marie Island99
    99 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Sainte Marie Island11
    11 (Extreme) UV index
  • 24°C sea temperature in September in Sainte Marie Island24
    24°C sea temperature

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The September weather guide for Madagascar (Sainte Marie Island) 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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How hot is it in Sainte Marie Island in September?

Daytime temperatures usually reach 26°C in Sainte Marie Island in September with low heat and humidity, falling to 17°C at night.

How sunny is it in Sainte Marie Island in September?

There are normally 7 hours of bright sunshine each day in Sainte Marie Island in September - that's 61% of daylight hours.

How warm is the sea around Sainte Marie Island in September?

The average sea temperature around Sainte Marie Island in September is 24°C.

Does it rain in Sainte Marie Island in September?

There are usually 16 days with some rain in Sainte Marie Island in September and the average monthly rainfall is 99mm.

Sainte Marie Island September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:47 17:34
Monday, 15th September 2025 05:36 17:36
Tuesday, 30th September 2025 05:24 17:38

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