Weather in Belfast in May
In an average May, Belfast sees a daily high around 14°C and a low around 7°C, based on 1980–2026 of local climate records.
| Average high | 14°C |
|---|---|
| Typical high range | 11°C to 18°C |
| Average low | 7°C |
| Typical low range | 4°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
2010-05-23
Lowest
4°C
1993-05-14
Low
Highest
14°C
2026-05-29
Lowest
-1°C
2020-05-14
Feels-like
Highest
14°C
2019-05-30
Lowest
-5°C
2021-05-06
Humidity
Highest
12.4 g/m³
2010-05-20
Lowest
4.3 g/m³
1996-05-03
Wind
Highest
49 km/h
1986-05-27
Lowest
6 km/h
2022-05-02
Gust
Highest
113 km/h
2011-05-23
Lowest
13 km/h
2024-05-05
Precip
Wettest
150 mm
1981
Driest
11 mm
1991
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