The climate in Douglas during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Douglas and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 15°C (58°F) is normal.
Daytime temperature | 31.2°C 88.1°F |
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Nightly temperature | 14.7°C 58.4°F |
Average temperature | 22.9°C 73.2°F |
Daily sunshine | 10.4 hrs |
Avg rainfall | 36 mm 1.4 ins |
Rainy days | 5 days |
Sea temperature | 27°C 80.7°F |
Humidity | 51% |
Windspeed | 11.2kph 7 mph |
On average September is the 3rd wettest month of the year in Douglas with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
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 Douglas in September 2024.
Best places to visit in September
Hottest month: | July | 34°C 93.2°F |
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Driest month: | April | 5mm 0.2ins |
Sunniest month: | June | 12.9hrs |
Coldest month: | January | 15.9°C 60.6°F |
Wettest month: | July | 91mm 3.6ins |