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Grenada weather in September 2025
Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Grenada in September. Check more long-term weather averages for Grenada 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
29
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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.
Top Grenada destinations
Below are average maximum temperatures at popular countries, regions and places in Grenada in September. Select a holiday destination to see more weather parameters.
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Metric (°C / mm) | Imperial (°F / inches)
More about Grenada
How hot is it in Grenada in September?
Daytime temperatures usually reach 30°C in St George's, Grenada in September with high heat and humidity, falling to 23°C at night.
How sunny is it in Grenada in September?
There are normally 7 hours of bright sunshine each day in St George's, Grenada in September - that's 60% of daylight hours.
How warm is the sea around Grenada in September?
The average sea temperature around St George's, Grenada in September is 29°C.
Does it rain in Grenada in September?
There are usually 17 days with some rain in St George's, Grenada in September and the average monthly rainfall is 186mm.
What is the chance of a hurricane in Grenada in September?
On average less than 1 day in September in St George's, Grenada is likely to be affected by the passage of one or more tropical storms.
Grenada September sunrise & sunset times
Browse the sunrise and sunset times for Grenada in September 2025. Select a month to view Grenada sunrise and sunset times for the next 12 months. The Grenada sunrise and sunset times shown below are for St George's.
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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