The climate in Kōṯowāl during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Kōṯowāl and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 15°C (60°F) is normal.
| Daytime temperature | 27.3°C 81.1°F | 
|---|---|
| Nightly temperature | 15.4°C 59.6°F | 
| Average temperature | 21.3°C 70.3°F | 
| Daily sunshine | 9.8 hrs | 
| Avg rainfall | 46 mm 1.8 ins | 
| Rainy days | 6 days | 
| Sea temperature | 21.7°C 71°F | 
| Humidity | 50% | 
| Windspeed | 6.1kph 4 mph | 
On average September is the 5th driest month of the year in Kōṯowāl with around 46mm 1.8 inches of rain making it a reasonably 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 9.8 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 Kōṯowāl in September 2025.
Best places to visit in September
| Hottest month: | July | 29.5°C 85.1°F | 
|---|---|---|
| Driest month: | November | 23mm 0.9ins | 
| Sunniest month: | November | 8.8hrs | 
| Coldest month: | January | 9.2°C 48.6°F | 
| Wettest month: | March | 129mm 5.1ins |