Puttalam Weather in September
What's the weather like in Puttalam (North Western) in September 2025?
The climate in Puttalam during September can be summarized as very hot, humid and reasonably dry.
September is in the fall / autumn in Puttalam and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 25°C (78°F) is normal.
| Daytime temperature | 31.7°C 89°F |
|---|---|
| Nightly temperature | 25.4°C 77.6°F |
| Average temperature | 28.5°C 83.3°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 53 mm 2.1 ins |
| Rainy days | 5 days |
| Sea temperature | 27.5°C 81.5°F |
| Humidity | 75% |
| Windspeed | 12.6kph 8 mph |
On average September is the 6th driest month of the year in Puttalam with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 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 Puttalam
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 Puttalam in September 2025.
Other monthly averages
Best places to visit in September
Puttalam weather stats
| Hottest month: | May | 32.1°C 89.8°F |
|---|---|---|
| Driest month: | August | 14mm 0.6ins |
| Sunniest month: | March | 9.2hrs |
| Coldest month: | January | 30.2°C 86.4°F |
| Wettest month: | October | 261mm 10.3ins |
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