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.

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Wales cottages

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

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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.

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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
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  • John Fowler Holidays
  • Pontins
  • Pure Leisure
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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.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st May 2021 05:44 20:36
Sunday, 16th May 2021 05:19 21:00
Monday, 31st May 2021 05:02 21:19
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Metric (°C / mm)  |  Imperial (°F / inches)

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