Weather in Belfast in August
In an average August, Belfast sees a daily high around 18°C and a low around 12°C, based on 1980–2026 of local climate records.
| Average high | 18°C |
|---|---|
| Typical high range | 15°C to 20°C |
| Average low | 12°C |
| Typical low range | 10°C to 15°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
25°C
1990-08-02
Lowest
12°C
1986-08-25
Low
Highest
17°C
1997-08-20
Lowest
6°C
1989-08-28
Feels-like
Highest
25°C
1990-08-02
Lowest
2°C
1986-08-31
Humidity
Highest
14.6 g/m³
1997-08-20
Lowest
7.2 g/m³
1980-08-23
Wind
Highest
44 km/h
1989-08-14
Lowest
5 km/h
1983-08-25
Gust
Highest
87 km/h
2020-08-21
Lowest
14 km/h
1983-08-25
Precip
Wettest
178 mm
1985
Driest
20 mm
1995
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