Weather in Swansea in May
In an average May, Swansea sees a daily high around 13°C and a low around 9°C, based on 1980–2026 of local climate records.
| Average high | 13°C |
|---|---|
| Typical high range | 11°C to 17°C |
| Average low | 9°C |
| Typical low range | 7°C to 12°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
27°C
2026-05-26
Lowest
8°C
1997-05-06
Low
Highest
16°C
2012-05-25
Lowest
4°C
1996-05-11
Feels-like
Highest
29°C
2026-05-26
Lowest
-2°C
1981-05-03
Humidity
Highest
13.6 g/m³
2026-05-27
Lowest
4.6 g/m³
2020-05-11
Wind
Highest
62 km/h
2021-05-20
Lowest
7 km/h
2018-05-19
Gust
Highest
97 km/h
2021-05-21
Lowest
13 km/h
1989-05-17
Precip
Wettest
182 mm
2021
Driest
12 mm
1991
See Swansea's live weather grade →
Visiting Swansea in May? See how its comfort stacks up against where you live.
Compare Swansea with your city →