Weather in Cardiff in May
In an average May, Cardiff sees a daily high around 15°C and a low around 8°C, based on 1980–2026 of local climate records.
| Average high | 15°C |
|---|---|
| Typical high range | 12°C to 19°C |
| Average low | 8°C |
| Typical low range | 5°C to 11°C |
| Average daily precipitation | 3 mm |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
24°C
1990-05-03
Lowest
8°C
1996-05-18
Low
Highest
16°C
2012-05-25
Lowest
2°C
2021-05-01
Feels-like
Highest
24°C
2017-05-26
Lowest
-4°C
1997-05-07
Humidity
Highest
13.3 g/m³
1989-05-24
Lowest
4.6 g/m³
1984-05-13
Wind
Highest
50 km/h
2021-05-21
Lowest
6 km/h
2004-05-15
Gust
Highest
92 km/h
2021-05-20
Lowest
13 km/h
1996-05-05
Precip
Wettest
170 mm
2021
Driest
8 mm
2020
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