Blue Bay weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Blue Bay in September. Check more long-term weather averages for Blue Bay in September before you book your next holiday to Mauritius in 2025/2026.

  • 23°C maximum daytime temperature in September in Blue Bay23
    23°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Blue Bay12
    12 days with some rainfall
  • 17°C minimum night-time temperature in September in Blue Bay17
    17°C min night temperature
  • 12 hours of daylight per day in September in Blue Bay12
    12 hours of daylight per day
  • Low heat & humidity in September in Blue BayL
    Low heat & humidity
  • 137 mm monthly rainfall in September in Blue Bay137
    137 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Blue Bay10
    10 (Very High) UV index
  • 23°C sea temperature in September in Blue Bay23
    23°C sea temperature

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The September weather guide for Mauritius (Blue Bay) 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 Mauritius

How hot is it in Blue Bay in September?

Daytime temperatures usually reach 23°C in Blue Bay in September, falling to 17°C at night.

How sunny is it in Blue Bay in September?

There are normally 6 hours of bright sunshine each day in Blue Bay in September - that's 51% of daylight hours.

How warm is the sea around Blue Bay in September?

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

Does it rain in Blue Bay in September?

There are usually 12 days with some rain in Blue Bay in September and the average monthly rainfall is 137mm.

Blue Bay September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:18 18:01
Monday, 15th September 2025 06:05 18:04
Tuesday, 30th September 2025 05:51 18:07

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