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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 max day temperature
30 - 7 hours of sunshine per day
- 17 days with some rainfall
17 - 23°C min night temperature
23 - 12 hours of daylight per day
12 - High heat & humidity
H - 186 mm of monthly rainfall
186 - 11+ (Extreme) UV index
11 - 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)
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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