Jamaica Weather in September
What's the weather like in Jamaica (Provincia Mayabeque) in September 2025?
The climate in Jamaica during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Jamaica and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 31.3°C 88.3°F |
|---|---|
| Nightly temperature | 21.7°C 71.1°F |
| Average temperature | 26.5°C 79.7°F |
| Daily sunshine | 10.3 hrs |
| Avg rainfall | 214 mm 8.4 ins |
| Rainy days | 13 days |
| Sea temperature | 29.6°C 85.4°F |
| Humidity | 84% |
| Windspeed | 9.7kph 6 mph |
On average September is the 2nd wettest month of the year in Jamaica with around 214mm 8.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
September temperatures in Jamaica
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Jamaica in September 2025.
Other monthly averages
Best places to visit in September
Jamaica weather stats
| Hottest month: | July | 31.7°C 89.1°F |
|---|---|---|
| Driest month: | December | 37mm 1.5ins |
| Sunniest month: | September | 10.3hrs |
| Coldest month: | January | 25.7°C 78.3°F |
| Wettest month: | June | 262mm 10.3ins |
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