Historical Weather in Helsinki, Finland
See 55+ years of weather history for any date in Helsinki going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Helsinki, Finland, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 22°C (71°F) / Low: 14°C (58°F)
Coldest MonthFebruaryAvg High: -2°C (29°F) / Low: -7°C (20°F)
Jan
-2°/ -7°
29° / 20°F
💧 66 mm
Feb
-2°/ -7°
29° / 20°F
💧 61 mm
Mar
2°/ -4°
36° / 25°F
💧 66 mm
Apr
8°/ 1°
46° / 34°F
💧 76 mm
May
14°/ 7°
58° / 44°F
💧 86 mm
Jun
19°/ 11°
66° / 52°F
💧 112 mm
Jul
22°/ 14°
71° / 58°F
💧 117 mm
Aug
20°/ 13°
68° / 56°F
💧 145 mm
Sep
15°/ 9°
59° / 48°F
💧 112 mm
Oct
9°/ 4°
48° / 39°F
💧 114 mm
Nov
4°/ 0°
40° / 32°F
💧 91 mm
Dec
1°/ -4°
33° / 25°F
💧 76 mm
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.