Charlestown Weather in September
What's the weather like in Charlestown (Saint Paul Charlestown) in September 2025?
The climate in Charlestown during September can be summarized as excessively hot and arid.
September is in the fall / autumn in Charlestown and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cold 0°C (32°F), whilst at night 0°C (32°F) is normal.
| Daytime temperature | 0°C 32°F |
|---|---|
| Nightly temperature | 0°C 32°F |
| Average temperature | 0°C 32°F |
| Daily sunshine | 0 hrs |
| Avg rainfall | 0 mm 0 ins |
| Rainy days | 0 days |
| Sea temperature | 28.9°C 84°F |
| Humidity | 0% |
| Windspeed | 0kph 0 mph |
On average September is the 4th wettest month of the year in Charlestown with around 0mm 0 inches of rain making it a arid time to visit.
On the flip side this corresponds to an average of 0 hours of sunshine per day.
September temperatures in Charlestown
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 Charlestown in September 2025.
Other monthly averages
Best places to visit in September
Charlestown weather stats
| Hottest month: | January | 0°C 32°F |
|---|---|---|
| Driest month: | January | 0mm 0ins |
| Sunniest month: | January | 0hrs |
| Coldest month: | January | 0°C 32°F |
| Wettest month: | January | 0mm 0ins |
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