The climate in Niwai during September can be summarized as very hot and a little damp.
September is in the fall / autumn in Niwai and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a warm 34°C (93°F), whilst at night 24°C (74°F) is normal.
Daytime temperature | 33.9°C 92.9°F |
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Nightly temperature | 23.6°C 74.4°F |
Average temperature | 28.7°C 83.7°F |
Daily sunshine | 7.8 hrs |
Avg rainfall | 91 mm 3.6 ins |
Rainy days | 4 days |
Sea temperature | 26.1°C 79°F |
Humidity | 59% |
Windspeed | 7.9kph 5 mph |
On average September is the 3rd wettest month of the year in Niwai with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 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 Niwai in September 2025.
Best places to visit in September
Hottest month: | June | 39.6°C 103.3°F |
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Driest month: | December | 3mm 0.1ins |
Sunniest month: | November | 9.5hrs |
Coldest month: | January | 22.9°C 73.2°F |
Wettest month: | August | 235mm 9.3ins |