Weather in Swansea, Wales, United Kingdom in May
In an average May, Swansea sees a daily high around 14°C and a low around 8°C, based on 1981–2026 of local climate records.
| Average high | 14°C |
|---|---|
| Typical high range | 12°C to 18°C |
| Average low | 8°C |
| Typical low range | 6°C to 11°C |
| Average daily precipitation | 3 mm |
May records
The most extreme May on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
27°C
2026-05-26
Lowest
7°C
1997-05-06
Low
Highest
15°C
2026-05-27
Lowest
2°C
1996-05-11
Feels-like
Highest
29°C
2026-05-26
Lowest
-3°C
1996-05-08
Humidity
Highest
13.6 g/m³
2026-05-27
Lowest
4.8 g/m³
1982-05-05
Wind
Highest
63 km/h
2021-05-03
Lowest
8 km/h
1994-05-22
Precip
Wettest
167 mm
2021
Driest
10 mm
1991
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