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Swansea weather in September 2020
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- 1717°C max day temperature
- 1616 days with some rainfall
- 1111°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 111111 mm of monthly rainfall
- 44 (Moderate) UV index
- 1717°C sea temperature
The September weather guide for Swansea, Wales shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Swansea holiday rentals
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Swansea camping & hostels
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How warm is it in Swansea in September?
Daytime temperatures usually reach 17°C in Swansea in September, falling to 11°C at night.
How sunny is it in Swansea in September?
There are normally 5 hours of bright sunshine each day in Swansea in September - that's 36% of daylight hours.
How warm is the sea around Swansea in September?
The average sea temperature around Swansea in September is 17°C.
Does it rain in Swansea in September?
There are usually 16 days with some rain in Swansea in September and the average monthly rainfall is 111mm.
Swansea sunrise & sunset times for September 2020
Browse the sunrise & sunset times for Swansea in September 2020. Select a month to view Swansea sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Tuesday, 1st September 2020||06:29||20:01|
|Tuesday, 15th September 2020||06:51||19:29|
|Wednesday, 30th September 2020||07:15||18:55|
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Metric (°C / mm) | Imperial (°F / inches)
Where is hot in Wales in September for 2020/2021?
Below are average maximum temperatures at popular destinations in Wales in September. Select a destination to see more weather parameters.
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