The climate in Newport during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Newport and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (79°F), whilst at night 14°C (57°F) is normal.
Daytime temperature | 26°C 78.8°F |
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Nightly temperature | 13.8°C 56.8°F |
Average temperature | 19.9°C 67.8°F |
Daily sunshine | 8.3 hrs |
Avg rainfall | 80 mm 3.1 ins |
Rainy days | 8 days |
Sea temperature | 22°C 71.7°F |
Humidity | 73% |
Windspeed | 12.2kph 8 mph |
On average September is the 5th driest month of the year in Newport with around 80mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 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 | 30.1°C 86.2°F |
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Driest month: | February | 64mm 2.5ins |
Sunniest month: | September | 8.3hrs |
Coldest month: | January | 3.1°C 37.6°F |
Wettest month: | May | 106mm 4.2ins |