Weather in Helsinki, Uusimaa, Finland in August
In an average August, Helsinki sees a daily high around 19°C and a low around 15°C, based on 1981–2026 of local climate records.
| Average high | 19°C |
|---|---|
| Typical high range | 16°C to 22°C |
| Average low | 15°C |
| Typical low range | 12°C to 18°C |
| Average daily precipitation | 3 mm |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
26°C
2010-08-08
Lowest
11°C
1981-08-31
Low
Highest
22°C
2018-08-02
Lowest
8°C
1984-08-26
Feels-like
Highest
26°C
2010-08-08
Lowest
5°C
1987-08-31
Humidity
Highest
18.5 g/m³
2010-08-08
Lowest
6.6 g/m³
1984-08-26
Wind
Highest
46 km/h
2001-08-28
Lowest
5 km/h
2012-08-17
Precip
Wettest
156 mm
2021
Driest
13 mm
2002
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