The climate in Newport during September can be summarized as warm, humid and a little damp.
September is in the fall / autumn in Newport and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 27°C (80°F), whilst at night 13°C (56°F) is normal.
Daytime temperature | 26.8°C 80.2°F |
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Nightly temperature | 13.2°C 55.8°F |
Average temperature | 20°C 68°F |
Daily sunshine | 7.8 hrs |
Avg rainfall | 83 mm 3.3 ins |
Rainy days | 9 days |
Sea temperature | 24.8°C 76.7°F |
Humidity | 78% |
Windspeed | 9.7kph 6 mph |
On average September is the 2nd driest month of the year in Newport with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 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 Newport in September 2025.
Best places to visit in September
Hottest month: | July | 29.9°C 85.8°F |
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Driest month: | October | 67mm 2.6ins |
Sunniest month: | April | 8.8hrs |
Coldest month: | January | 7.3°C 45.1°F |
Wettest month: | March | 120mm 4.7ins |