Cardiff Weather in May

What's the weather like in Cardiff (Wales) in May 2024?

The climate in Cardiff during May can be summarized as mild and reasonably dry.

May is in the spring in Cardiff and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 7°C (45°F) is normal.

Cardiff weather averages (imperial / metric)
Daytime temperature 15.5°C 59.8°F
Nightly temperature 7.2°C 44.9°F
Average temperature 11.3°C 52.3°F
Daily sunshine 6.9 hrs
Avg rainfall 65 mm 2.6 ins
Rainy days 15 days
Sea temperature 11.2°C 52.2°F
Humidity 82%
Windspeed 16.6kph 10 mph

On average May is the 3rd driest month of the year in Cardiff with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.9 hours of sunshine per day.

May temperatures in Cardiff

Cardiff average temperature in May

May rainfall

Cardiff average rain in May

May hourly sunshine

Cardiff average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cardiff in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Cardiff weather stats

Cardiff weather statistics
Hottest month: July 20.2°C 68.4°F
Driest month: April 60mm 2.4ins
Sunniest month: August 6.6hrs
Coldest month: February 7.2°C 45°F
Wettest month: December 109mm 4.3ins
Map showing location of Cardiff (51.48, -3.18) Cardiff map pin © Google

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