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Swansea
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Swansea Weather September

Swansea 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 Swansea in September.

day temperatureaverage daily high+17.8°C
night temperatureaverage daily low+12.4°C
sea temperaturesea temperature+16.5°C
day lengthdaytime13.2 h
average monthly precipitationaverage monthly precipitation77 mm

Best time with the soft weather for the sightseeing and long walks in Swansea are July, August.

Best places in September


Temperature in Swansea

In September the average daily maximum in Swansea is +17.8°C, and the minimum +12.4°C.

The hottest September day on record is +23.2°C, and the coldest +5.7°C.

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Best beach resorts in September:

Barcelona
Spain

Nice
France

Rimini
Italy

Cannes
France

Lisbon
Portugal

Marseille
France


Algarve
Portugal

Marbella
Spain

Naples
Italy

Split
Croatia

Jeju
South Korea

Dubrovnik
Croatia


Daylight hours

There are 13.2 hours of daylight in Swansea in September.

Most Popular Destinations in the World


Sea temperature

The average monthly temperature in the Bristol Channel on the beaches of Swansea in September is +16.5°C.

The water is considered very cool, but some hardy people might bathe in it for 10-15 minutes.

Swansea climate by month


Precipitation

The amount of precipitation in Swansea in September is usually 77 mm, which may cause a change of plans on certain days.

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