The climate in Ad Dimnah during September can be summarized as hot and reasonably dry.
September is in the fall / autumn in Ad Dimnah and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a warm 31°C (88°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 30.9°C 87.6°F |
|---|---|
| Nightly temperature | 20.9°C 69.6°F |
| Average temperature | 25.9°C 78.6°F |
| Daily sunshine | 9 hrs |
| Avg rainfall | 60 mm 2.4 ins |
| Rainy days | 2 days |
| Sea temperature | 30.5°C 87°F |
| Humidity | 69% |
| Windspeed | 13.7kph 9 mph |
On average September is the 3rd wettest month of the year in Ad Dimnah with around 60mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 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 Ad Dimnah in September 2025.
Best places to visit in September
| Hottest month: | July | 32.2°C 90°F |
|---|---|---|
| Driest month: | January | 5mm 0.2ins |
| Sunniest month: | November | 9.9hrs |
| Coldest month: | January | 24.6°C 76.3°F |
| Wettest month: | August | 70mm 2.8ins |