Nirmāli Weather in September
What's the weather like in Nirmāli (Bihār) in September 2025?
The climate in Nirmāli during September can be summarized as very hot, humid and very wet.
September is in the fall / autumn in Nirmāli and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 24°C (76°F) is normal.
| Daytime temperature | 32.2°C 89.9°F |
|---|---|
| Nightly temperature | 24.3°C 75.7°F |
| Average temperature | 28.2°C 82.8°F |
| Daily sunshine | 4.5 hrs |
| Avg rainfall | 208 mm 8.2 ins |
| Rainy days | 7 days |
| Sea temperature | 26.2°C 79.1°F |
| Humidity | 82% |
| Windspeed | 4.3kph 3 mph |
On average September is the 3rd wettest month of the year in Nirmāli with around 208mm 8.2 inches of rain making it a very 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 4.5 hours of sunshine per day.
September temperatures in Nirmāli
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 Nirmāli in September 2025.
Other monthly averages
Best places to visit in September
Nirmāli weather stats
| Hottest month: | June | 33.8°C 92.8°F |
|---|---|---|
| Driest month: | December | 5mm 0.2ins |
| Sunniest month: | April | 9.1hrs |
| Coldest month: | January | 22.8°C 73°F |
| Wettest month: | July | 362mm 14.3ins |
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