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Cardiff weather in May 2023
- 1616°C max day temperature
- 1515 days with some rainfall
- 77°C min night temperature
- 1616 hours of daylight per day
- 0No heat & humidity
- 6565 mm of monthly rainfall
- 55 (Moderate) UV index
- 1212°C sea temperature
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.
Metric (°C / mm) | Imperial (°F / inches)
More about the UK
How warm is it in Cardiff in May?
Daytime temperatures usually reach 16°C in Cardiff in May, falling to 7°C at night.
How sunny is it in Cardiff in May?
There are normally 6 hours of bright sunshine each day in Cardiff in May - that's 41% of daylight hours.
How warm is the sea around Cardiff in May?
The average sea temperature around Cardiff in May is 12°C.
Does it rain in Cardiff in May?
There are usually 15 days with some rain in Cardiff in May and the average monthly rainfall is 65mm.
Cardiff May sunrise & sunset times
Browse the sunrise and sunset times for Cardiff in May 2023. Select a month to view Cardiff sunrise and sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Monday, 1st May 2023||05:45||20:35|
|Tuesday, 16th May 2023||05:20||20:59|
|Wednesday, 31st May 2023||05:02||21:19|
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