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Cardiff weather in September 2020
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- 1818°C max day temperature
- 1515 days with some rainfall
- 1010°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 9191 mm of monthly rainfall
- 44 (Moderate) UV index
- 1717°C sea temperature
The September weather guide for Cardiff, 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.
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How hot is it in Cardiff in September?
Daytime temperatures usually reach 18°C in Cardiff in September, falling to 10°C at night.
How sunny is it in Cardiff in September?
There are normally 5 hours of bright sunshine each day in Cardiff in September - that's 37% of daylight hours.
How warm is the sea around Cardiff in September?
The average sea temperature around Cardiff in September is 17°C.
Does it rain in Cardiff in September?
There are usually 15 days with some rain in Cardiff in September and the average monthly rainfall is 91mm.
Cardiff sunrise & sunset times for September 2020
Browse the sunrise & sunset times for Cardiff in September 2020. Select a month to view Cardiff sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Tuesday, 1st September 2020||06:26||19:58|
|Tuesday, 15th September 2020||06:48||19:26|
|Wednesday, 30th September 2020||07:12||18:52|
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Metric (°C / mm) | Imperial (°F / inches)
Where's hot in Wales in September?
Below are average maximum temperatures at popular destinations in Wales in September. Select a destination to see more weather parameters.
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