The climate in Koilás during September can be summarized as warm and dry.
September is in the fall / autumn in Koilás and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 27.7°C 81.9°F | 
|---|---|
| Nightly temperature | 16.9°C 62.4°F | 
| Average temperature | 22.3°C 72.1°F | 
| Daily sunshine | 10.3 hrs | 
| Avg rainfall | 14 mm 0.5 ins | 
| Rainy days | 2 days | 
| Sea temperature | 24.1°C 75.3°F | 
| Humidity | 57% | 
| Windspeed | 7.2kph 5 mph | 
On average September is the 4th driest month of the year in Koilás with around 14mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 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 Koilás in September 2025.
Best places to visit in September
| Hottest month: | July | 30.9°C 87.6°F | 
|---|---|---|
| Driest month: | July | 6mm 0.2ins | 
| Sunniest month: | July | 13.3hrs | 
| Coldest month: | January | 12.2°C 54°F | 
| Wettest month: | December | 104mm 4.1ins | 
 
	 
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