Cardiff Weather in August
21.1°C high · 12.7°C low · 88 mm rain · 6.8h sun
Yes — Aug is one of the best months to visit Cardiff, with mild weather and 6.8h of daily sunshine.
August at a glance
| Metric | Value |
|---|---|
| Average high | 21.1°C |
| Average low | 12.7°C |
| Rainfall | 88 mm |
| Sunshine | 6.8 hours/day |
| Daylight | 14.4 hours |
What to pack in August
Pack comfortable clothes with a light layer for evenings for Cardiff in August.
Cardiff weather by month
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Frequently asked questions
What is the weather in Cardiff in August?
Highs of 21.1°C and lows of 12.7°C, with about 88 mm of rain and 6.8 hours of sunshine per day.
Is August a good time to visit Cardiff?
Yes — Aug is one of the best months to visit Cardiff, with mild weather and 6.8h 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.