Nassau weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Nassau in September. Check more long-term weather averages for Nassau in September before you book your next holiday to Bahamas in 2025/2026.

  • 31°C maximum daytime temperature in September in Nassau31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 23 days with some rainfall in September in Nassau23
    23 days with some rainfall
  • 24°C minimum night-time temperature in September in Nassau24
    24°C min night temperature
  • 12 hours of daylight per day in September in Nassau12
    12 hours of daylight per day
  • Very high heat & humidity in September in NassauVH
    Very High heat & humidity
  • 178 mm monthly rainfall in September in Nassau178
    178 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Nassau10
    10 (Very High) UV index
  • 29°C sea temperature in September in Nassau29
    29°C sea temperature

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The September weather guide for Bahamas (Nassau) 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 Nassau in September?

Daytime temperatures usually reach 31°C in Nassau in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Nassau in September?

There are normally 7 hours of bright sunshine each day in Nassau in September - that's 58% of daylight hours.

How warm is the sea around Nassau in September?

The average sea temperature around Nassau in September is 29°C.

Does it rain in Nassau in September?

There are usually 23 days with some rain in Nassau in September and the average monthly rainfall is 178mm.

What is the chance of a hurricane in Nassau in September?

On average 1 day in September in Nassau is likely to be affected by the passage of one or more tropical storms.

Nassau September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:50 18:28
Monday, 15th September 2025 05:56 18:13
Tuesday, 30th September 2025 06:01 17:57

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