St George's weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St George's in September. Check more long-term weather averages for St George's in September before you book your next holiday to Grenada in 2025/2026.

  • 30°C maximum daytime temperature in September in St George's30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 17 days with some rainfall in September in St George's17
    17 days with some rainfall
  • 23°C minimum night-time temperature in September in St George's23
    23°C min night temperature
  • 12 hours of daylight per day in September in St George's12
    12 hours of daylight per day
  • High heat & humidity in September in St George'sH
    High heat & humidity
  • 186 mm monthly rainfall in September in St George's186
    186 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in St George's11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in St George's29
    29°C sea temperature

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The September weather guide for Grenada (St George's) 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 Grenada

How hot is it in St George's in September?

Daytime temperatures usually reach 30°C in St George's in September with high heat and humidity, falling to 23°C at night.

How sunny is it in St George's in September?

There are normally 7 hours of bright sunshine each day in St George's in September - that's 60% of daylight hours.

How warm is the sea around St George's in September?

The average sea temperature around St George's in September is 29°C.

Does it rain in St George's in September?

There are usually 17 days with some rain in St George's in September and the average monthly rainfall is 186mm.

What is the chance of a hurricane in St George's in September?

On average less than 1 day in September in St George's is likely to be affected by the passage of one or more tropical storms.

St George's September sunrise & sunset times

Browse the sunrise and sunset times for St George's in September 2025. Select a month to view St George's sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:57 18:17
Monday, 15th September 2025 05:56 18:08
Tuesday, 30th September 2025 05:56 17:57

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