Castries Weather in September
What's the weather like in Castries (Castries) in September 2024?
The climate in Castries during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Castries and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 29.9°C 85.8°F |
|---|---|
| Nightly temperature | 23.7°C 74.7°F |
| Average temperature | 26.8°C 80.2°F |
| Daily sunshine | 7.9 hrs |
| Avg rainfall | 259 mm 10.2 ins |
| Rainy days | 24 days |
| Sea temperature | 29.1°C 84.4°F |
| Humidity | 83% |
| Windspeed | 11.9kph 7 mph |
On average September is the 5th wettest month of the year in Castries with around 259mm 10.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.9 hours of sunshine per day.
September temperatures in Castries
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 Castries in September 2024.
Other monthly averages
Best places to visit in September
Castries weather stats
| Hottest month: | June | 29.5°C 85.1°F |
|---|---|---|
| Driest month: | March | 99mm 3.9ins |
| Sunniest month: | January | 8.7hrs |
| Coldest month: | January | 27.6°C 81.7°F |
| Wettest month: | October | 303mm 11.9ins |
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