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Wales weather in September 2021
Get the latest coronavirus (Covid-19) updates for Wales with current travel advice and statistics on new cases per 100,000 and vaccine.
Below are average maximum temperatures at popular destinations in Wales in September. Select a destination to see more weather parameters.
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The September weather guide for 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.
How hot is it in Wales in September?
Daytime temperatures usually reach 18°C in Cardiff, Wales in September, falling to 10°C at night.
How sunny is it in Wales in September?
There are normally 5 hours of bright sunshine each day in Cardiff, Wales in September - that's 37% of daylight hours.
How warm is the sea around Wales in September?
The average sea temperature around Cardiff, Wales in September is 17°C.
Does it rain in Wales in September?
There are usually 15 days with some rain in Cardiff, Wales in September and the average monthly rainfall is 91mm.
Metric (°C / mm) | Imperial (°F / inches)
Wales sunrise & sunset times for September 2021
Browse the sunrise and sunset times for Wales in September 2021. Select a month to view Wales sunrise & sunset times for the next 12 months. The Wales sunrise and sunset times shown below are for Cardiff.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:26||19:59|
|Wednesday, 15th September 2021||06:48||19:27|
|Thursday, 30th September 2021||07:12||18:52|
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