Portsmouth Weather September
Portsmouth is located in oceanic climate that can be described as high humidity and moderate seasonal temperature fluctuations warm summer and soft but windy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Portsmouth in September.
|average daily high||+19°C|
|average daily low||+12.2°C|
|sunny / overcast hours||5.8 / 7.3|
|average monthly precipitation||54 mm|
Temperature in Portsmouth
In September the average daily maximum in Portsmouth is +19°C, and the minimum +12.2°C.
The hottest September day on record is +26.3°C, and the coldest +4.9°C.
Best beach resorts in September:
There are 13.1 hours of daylight in Portsmouth in September. Out of these, on average 5.8 are sunny, which means it is mostly cloudy.
The average monthly temperature in the English Channel on the beaches of Portsmouth in September is +17.3°C.
The water is considered very cool, but some hardy people might bathe in it for 10-15 minutes.
The amount of precipitation in Portsmouth in September is usually 54 mm, which may cause a change of plans on certain days.