The climate in Jaén during September can be summarized as warm and dry.
September is in the fall / autumn in Jaén and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (85°F), whilst at night 16°C (61°F) is normal.
| Daytime temperature | 29.5°C 85.1°F | 
|---|---|
| Nightly temperature | 16.1°C 61°F | 
| Average temperature | 22.8°C 73°F | 
| Daily sunshine | 9.2 hrs | 
| Avg rainfall | 22 mm 0.9 ins | 
| Rainy days | 6 days | 
| Sea temperature | 22.7°C 72.8°F | 
| Humidity | 55% | 
| Windspeed | 12.6kph 8 mph | 
On average September is the 3rd driest month of the year in Jaén with around 22mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 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 Jaén in September 2025.
Best places to visit in September
| Hottest month: | July | 34°C 93.2°F | 
|---|---|---|
| Driest month: | August | 7mm 0.3ins | 
| Sunniest month: | July | 12.9hrs | 
| Coldest month: | January | 12.4°C 54.3°F | 
| Wettest month: | November | 64mm 2.5ins |