Cardiff Weather in May
16.5°C high · 7.6°C low · 62 mm rain · 8h sun
Yes — May is one of the best months to visit Cardiff, with mild weather and 8h of daily sunshine.
May at a glance
| Metric | Value |
|---|---|
| Average high | 16.5°C |
| Average low | 7.6°C |
| Rainfall | 62 mm |
| Sunshine | 8 hours/day |
| Daylight | 15.4 hours |
What to pack in May
Pack a jacket and layers for Cardiff in May.
Cardiff weather by month
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Frequently asked questions
What is the weather in Cardiff in May?
Highs of 16.5°C and lows of 7.6°C, with about 62 mm of rain and 8 hours of sunshine per day.
Is May a good time to visit Cardiff?
Yes — May is one of the best months to visit Cardiff, with mild weather and 8h of daily sunshine.
What to do in Cardiff · Best time to visit Cardiff
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.