The climate in Puducherry during September can be summarized as very hot, humid and wet.
September is in the fall / autumn in Puducherry and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 34°C (93°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 33.6°C 92.5°F | 
|---|---|
| Nightly temperature | 24.6°C 76.3°F | 
| Average temperature | 29.1°C 84.4°F | 
| Daily sunshine | 6.6 hrs | 
| Avg rainfall | 137 mm 5.4 ins | 
| Rainy days | 6 days | 
| Sea temperature | 28.8°C 83.8°F | 
| Humidity | 74% | 
| Windspeed | 9.7kph 6 mph | 
On average September is the 5th wettest month of the year in Puducherry with around 137mm 5.4 inches of rain making it a wet 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 6.6 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 Puducherry in September 2025.
Best places to visit in September
| Hottest month: | May | 36.5°C 97.7°F | 
|---|---|---|
| Driest month: | March | 9mm 0.4ins | 
| Sunniest month: | February | 9.6hrs | 
| Coldest month: | January | 28.1°C 82.6°F | 
| Wettest month: | November | 300mm 11.8ins |