Wales weather in May 2021

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Below are average maximum temperatures at popular destinations in Wales in May. Select a destination to see more weather parameters.

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The May 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.

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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.

Wales cottages

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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.

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.

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.

Wales car hire

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

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How warm is it in Wales in May?

Daytime temperatures usually reach 16°C in Cardiff, Wales in May, falling to 7°C at night.

How sunny is it in Wales in May?

There are normally 6 hours of bright sunshine each day in Cardiff, Wales in May - that's 41% of daylight hours.

How warm is the sea around Wales in May?

The average sea temperature around Cardiff, Wales in May is 12°C.

Does it rain in Wales in May?

There are usually 15 days with some rain in Cardiff, Wales in May and the average monthly rainfall is 65mm.

Wales sunrise & sunset times for May 2021

Browse the sunrise & sunset times for Wales in May 2021. Select a month to view Wales sunrise & sunset times for the next twelve months. The Wales sunrise & sunset times shown below are for Cardiff.

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