The climate in Anuradhapura during September can be summarized as very hot, humid and reasonably dry.
September is in the fall / autumn in Anuradhapura and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 32.1°C 89.8°F | 
|---|---|
| Nightly temperature | 24.5°C 76.1°F | 
| Average temperature | 28.3°C 82.9°F | 
| Daily sunshine | 6.9 hrs | 
| Avg rainfall | 64 mm 2.5 ins | 
| Rainy days | 6 days | 
| Sea temperature | 28.4°C 83.1°F | 
| Humidity | 72% | 
| Windspeed | 13kph 8 mph | 
On average September is the 5th driest month of the year in Anuradhapura with around 64mm 2.5 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 6.9 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 Anuradhapura in September 2025.
Best places to visit in September
| Hottest month: | May | 32.6°C 90.7°F | 
|---|---|---|
| Driest month: | June | 11mm 0.4ins | 
| Sunniest month: | March | 9.1hrs | 
| Coldest month: | January | 28.9°C 84°F | 
| Wettest month: | November | 261mm 10.3ins |