As Sulayyil Weather in September
What's the weather like in As Sulayyil (Ar Riyāḑ) in September 2025?
The climate in As Sulayyil during September can be summarized as very hot and very dry.
September is in the fall / autumn in As Sulayyil and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a hot 41°C (105°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 40.6°C 105°F |
|---|---|
| Nightly temperature | 24.1°C 75.3°F |
| Average temperature | 32.3°C 90.1°F |
| Daily sunshine | 10 hrs |
| Avg rainfall | 1 mm 0 ins |
| Rainy days | 0 days |
| Sea temperature | 30°C 86°F |
| Humidity | 42% |
| Windspeed | 11.2kph 7 mph |
On average September is the driest month of the year in As Sulayyil with around 1mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10 hours of sunshine per day.
September temperatures in As Sulayyil
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 As Sulayyil in September 2025.
Other monthly averages
Best places to visit in September
As Sulayyil weather stats
| Hottest month: | July | 43.4°C 110.1°F |
|---|---|---|
| Driest month: | September | 1mm 0ins |
| Sunniest month: | October | 10.5hrs |
| Coldest month: | January | 23.1°C 73.6°F |
| Wettest month: | March | 25mm 1ins |
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