Wales weather in May 2023

16
16°C max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
7
7°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
65
65 mm of monthly rainfall
5
5 (Moderate) UV index
12
12°C sea temperature

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

Wales regions

Pembrokeshire

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Recommended for Wales

The May weather guide for Wales (Cardiff) 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

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 May sunrise & sunset times

Browse the sunrise and sunset times for Wales in May 2023. Select a month to view Wales sunrise and sunset times for the next 12 months. The Wales sunrise and sunset times shown below are for Cardiff.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec