Weather in Helsinki in December
In an average December, Helsinki sees a daily high around 0°C and a low around -4°C, based on 1980–2026 of local climate records.
| Average high | 0°C |
|---|---|
| Typical high range | -6°C to 5°C |
| Average low | -4°C |
| Typical low range | -13°C to 2°C |
| Average daily precipitation | 3 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
10°C
2015-12-20
Lowest
-22°C
2002-12-31
Low
Highest
7°C
2006-12-06
Lowest
-27°C
1995-12-25
Feels-like
Highest
3°C
2000-12-04
Lowest
-38°C
1995-12-24
Humidity
Highest
7.5 g/m³
2006-12-06
Lowest
0.6 g/m³
2002-12-31
Wind
Highest
45 km/h
2003-12-28
Lowest
5 km/h
2023-12-14
Gust
Highest
95 km/h
1999-12-01
Lowest
10 km/h
2023-12-14
Precip
Wettest
127 mm
2011
Driest
17 mm
2002
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