Weather in Helsinki in May
In an average May, Helsinki sees a daily high around 15°C and a low around 5°C, based on 1980–2026 of local climate records.
| Average high | 15°C |
|---|---|
| Typical high range | 9°C to 22°C |
| Average low | 5°C |
| Typical low range | 0°C to 9°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
29°C
1995-05-30
Lowest
3°C
1996-05-16
Low
Highest
16°C
2014-05-25
Lowest
-5°C
1999-05-03
Feels-like
Highest
32°C
1995-05-30
Lowest
-11°C
1995-05-02
Humidity
Highest
14.0 g/m³
2007-05-28
Lowest
2.3 g/m³
2000-05-12
Wind
Highest
35 km/h
2000-05-26
Lowest
4 km/h
2005-05-06
Gust
Highest
80 km/h
1995-05-14
Lowest
14 km/h
2018-05-13
Precip
Wettest
104 mm
2021
Driest
9 mm
2024
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