Weather in Cardiff in August
In an average August, Cardiff sees a daily high around 19°C and a low around 14°C, based on 1980–2026 of local climate records.
| Average high | 19°C |
|---|---|
| Typical high range | 17°C to 23°C |
| Average low | 14°C |
| Typical low range | 11°C to 16°C |
| Average daily precipitation | 3 mm |
August records
The most extreme August on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
30°C
2022-08-12
Lowest
13°C
1986-08-03
Low
Highest
20°C
2003-08-05
Lowest
8°C
2010-08-31
Feels-like
Highest
33°C
2020-08-12
Lowest
5°C
2012-08-31
Humidity
Highest
16.6 g/m³
2003-08-10
Lowest
7.4 g/m³
1987-08-05
Wind
Highest
53 km/h
2020-08-25
Lowest
6 km/h
1988-08-06
Gust
Highest
96 km/h
2020-08-25
Lowest
12 km/h
1991-08-26
Precip
Wettest
191 mm
1992
Driest
7 mm
1995
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