The climate in Jayshān during September can be summarized as hot and reasonably dry.
September is in the fall / autumn in Jayshān and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (86°F), whilst at night 18°C (64°F) is normal.
| Daytime temperature | 29.8°C 85.6°F |
|---|---|
| Nightly temperature | 17.7°C 63.8°F |
| Average temperature | 23.7°C 74.7°F |
| Daily sunshine | 8.6 hrs |
| Avg rainfall | 48 mm 1.9 ins |
| Rainy days | 3 days |
| Sea temperature | 30°C 85.9°F |
| Humidity | 63% |
| Windspeed | 15.1kph 9 mph |
On average September is the 3rd wettest month of the year in Jayshān with around 48mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.6 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 Jayshān in September 2025.
Best places to visit in September
| Hottest month: | July | 30.6°C 87.1°F |
|---|---|---|
| Driest month: | December | 6mm 0.2ins |
| Sunniest month: | November | 9.8hrs |
| Coldest month: | December | 21.7°C 71.1°F |
| Wettest month: | August | 59mm 2.3ins |