The climate in ‘Usaylān during September can be summarized as hot and reasonably dry.
September is in the fall / autumn in ‘Usaylān and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a warm 34°C (93°F), whilst at night 22°C (71°F) is normal.
Daytime temperature | 33.8°C 92.8°F |
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Nightly temperature | 21.9°C 71.3°F |
Average temperature | 27.8°C 82°F |
Daily sunshine | 8.9 hrs |
Avg rainfall | 32 mm 1.3 ins |
Rainy days | 1 days |
Sea temperature | 30.4°C 86.7°F |
Humidity | 64% |
Windspeed | 14kph 9 mph |
On average September is the 3rd wettest month of the year in ‘Usaylān with around 32mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 1 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.9 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 ‘Usaylān in September 2025.
Best places to visit in September
Hottest month: | July | 35.3°C 95.5°F |
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Driest month: | December | 3mm 0.1ins |
Sunniest month: | October | 10.1hrs |
Coldest month: | January | 25.2°C 77.4°F |
Wettest month: | May | 41mm 1.6ins |