Ponneri Weather in September
What's the weather like in Ponneri (Tamil Nādu) in September 2025?
The climate in Ponneri during September can be summarized as very hot, humid and wet.
September is in the fall / autumn in Ponneri and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 35°C (94°F), whilst at night 25°C (78°F) is normal.
| Daytime temperature | 34.5°C 94.1°F |
|---|---|
| Nightly temperature | 25.3°C 77.5°F |
| Average temperature | 29.9°C 85.8°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 129 mm 5.1 ins |
| Rainy days | 7 days |
| Sea temperature | 29.1°C 84.4°F |
| Humidity | 73% |
| Windspeed | 9.4kph 6 mph |
On average September is the 5th wettest month of the year in Ponneri with around 129mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
September temperatures in Ponneri
September rainfall
September hourly sunshine
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 Ponneri in September 2025.
Other monthly averages
Best places to visit in September
Ponneri weather stats
| Hottest month: | May | 38.4°C 101.1°F |
|---|---|---|
| Driest month: | March | 5mm 0.2ins |
| Sunniest month: | February | 10hrs |
| Coldest month: | January | 29.1°C 84.4°F |
| Wettest month: | November | 312mm 12.3ins |
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