Wales weather in September 2020

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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.

Recommended for Wales

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Wales holiday rentals

Find holiday rentals in Wales including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.

  • Airbnb
  • HomeAway
  • Interhome
  • Love Home Swap

Wales cottages

Search for holiday cottages in Wales including contemporary and traditional self-catering accommodation.

  • FBM Holidays
  • Quality Cottages
  • Rural Retreats
  • Stays Cottage Holidays

Wales hotels

Compare prices for hotels in Wales by booking directly with hotel chains and independent hotels or via online travel agencies and hotel comparison websites.

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  • Travelodge

Wales camping & hostels

Looking for camping holidays in Wales? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.

  • Campsited
  • Hostel World
  • Quality Unearthed
  • YHA

Wales holiday parks

Discover family holidays and short breaks at holiday parks, activity centres and seaside resorts in Wales with lots of activities, adventures and entertainment for all.

  • Bluestone
  • Hoseasons
  • John Fowler Holidays
  • Pontins
  • Pure Leisure

Wales car hire

Need to hire a car for Wales? Check out the car hire companies and brokers offering car rentals for Wales.

  • Enterprise

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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.

Wales sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Wales in September 2020. Select a month to view Wales sunrise & sunset times for the next twelve months. The Wales sunrise & sunset times shown below are for Cardiff.

JanFebMarAprMayJunJulAugSepOctNovDec

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)

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