Weather in St Helens in August
In an average August, St Helens sees a daily high around 19°C and a low around 13°C, based on 1980–2026 of local climate records.
| Average high | 19°C |
|---|---|
| Typical high range | 16°C to 23°C |
| Average low | 13°C |
| Typical low range | 10°C to 16°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
32°C
1990-08-02
Lowest
13°C
1993-08-22
Low
Highest
19°C
1997-08-20
Lowest
5°C
1980-08-25
Feels-like
Highest
38°C
2003-08-09
Lowest
3°C
2010-08-31
Humidity
Highest
17.1 g/m³
2020-08-12
Lowest
6.9 g/m³
1992-08-31
Wind
Highest
47 km/h
1986-08-25
Lowest
7 km/h
2025-08-23
Gust
Highest
90 km/h
1986-08-25
Lowest
15 km/h
2018-08-30
Precip
Wettest
189 mm
2004
Driest
15 mm
1995
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