Morgan Bay weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Morgan Bay in September. Check more long-term weather averages for Morgan Bay in September before you book your next holiday to St Lucia in 2025/2026.

  • 30°C maximum daytime temperature in September in Morgan Bay30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 25 days with some rainfall in September in Morgan Bay25
    25 days with some rainfall
  • 24°C minimum night-time temperature in September in Morgan Bay24
    24°C min night temperature
  • 12 hours of daylight per day in September in Morgan Bay12
    12 hours of daylight per day
  • Very high heat & humidity in September in Morgan BayVH
    Very High heat & humidity
  • 224 mm monthly rainfall in September in Morgan Bay224
    224 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Morgan Bay11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Morgan Bay29
    29°C sea temperature

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The September weather guide for St Lucia (Morgan 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 St Lucia

How hot is it in Morgan Bay in September?

Daytime temperatures usually reach 30°C in Morgan Bay in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Morgan Bay in September?

There are normally 8 hours of bright sunshine each day in Morgan Bay in September - that's 62% of daylight hours.

How warm is the sea around Morgan Bay in September?

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

Does it rain in Morgan Bay in September?

There are usually 25 days with some rain in Morgan Bay in September and the average monthly rainfall is 224mm.

What is the chance of a hurricane in Morgan Bay in September?

On average 1.1 days in September in Morgan Bay are likely to be affected by the passage of one or more tropical storms.

Morgan Bay September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:52 18:15
Monday, 15th September 2025 05:53 18:05
Tuesday, 30th September 2025 05:53 17:54

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