The climate in Istālif during September can be summarized as warm and very dry.
September is in the fall / autumn in Istālif and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 11°C (52°F) is normal.
| Daytime temperature | 26.5°C 79.7°F | 
|---|---|
| Nightly temperature | 11.1°C 52°F | 
| Average temperature | 18.8°C 65.8°F | 
| Daily sunshine | 10.7 hrs | 
| Avg rainfall | 2 mm 0.1 ins | 
| Rainy days | 1 days | 
| Sea temperature | 21.8°C 71.2°F | 
| Humidity | 37% | 
| Windspeed | 10.4kph 7 mph | 
On average September is the 2nd driest month of the year in Istālif with around 2mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10.7 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 Istālif in September 2025.
Best places to visit in September
| Hottest month: | July | 29.9°C 85.8°F | 
|---|---|---|
| Driest month: | June | 2mm 0.1ins | 
| Sunniest month: | September | 10.7hrs | 
| Coldest month: | January | 3.2°C 37.8°F | 
| Wettest month: | March | 85mm 3.3ins |