Cap Estate weather in September 2025

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

  • 30°C maximum daytime temperature in September in Cap Estate30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 25 days with some rainfall in September in Cap Estate25
    25 days with some rainfall
  • 24°C minimum night-time temperature in September in Cap Estate24
    24°C min night temperature
  • 12 hours of daylight per day in September in Cap Estate12
    12 hours of daylight per day
  • Very high heat & humidity in September in Cap EstateVH
    Very High heat & humidity
  • 224 mm monthly rainfall in September in Cap Estate224
    224 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Cap Estate11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Cap Estate29
    29°C sea temperature

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The September weather guide for St Lucia (Cap Estate) 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 Cap Estate in September?

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

How sunny is it in Cap Estate in September?

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

How warm is the sea around Cap Estate in September?

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

Does it rain in Cap Estate in September?

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

What is the chance of a hurricane in Cap Estate in September?

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

Cap Estate September sunrise & sunset times

Browse the sunrise and sunset times for Cap Estate in September 2025. Select a month to view Cap Estate 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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