Weather in Helsinki

What's the weather like in Helsinki?

Helsinki has a wide swing between hot summers and cold winters and moderate rainfall spread across the year. Average daytime highs range from -3°C (27°F) in January to 22°C (72°F) in July, with overnight lows around -7°C (19°F) and 14°C (57°F) respectively.

For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Helsinki are June through August.

Quick facts

Country: 🇫🇮 Finland
Region: Europe
Time zone: Europe/Helsinki
Coordinates: 60.170, 24.938

Monthly climate

Long-run averages for each month of the year.

Month	Avg high	Avg low	Rainfall	Rain days	Snow days
January	-3°C / 27°F	-7°C / 19°F	55 mm	17	11
February	-3°C / 27°F	-8°C / 18°F	40 mm	15	11
March	1°C / 34°F	-5°C / 23°F	40 mm	12	7
April	8°C / 46°F	0°C / 32°F	35 mm	11	2
May	15°C / 59°F	5°C / 41°F	40 mm	11	0
June	19°C / 66°F	11°C / 52°F	55 mm	12	0
July	22°C / 72°F	14°C / 57°F	75 mm	12	0
August	20°C / 68°F	13°C / 55°F	80 mm	13	0
September	15°C / 59°F	8°C / 46°F	70 mm	13	0
October	8°C / 46°F	3°C / 37°F	80 mm	15	0
November	3°C / 37°F	-1°C / 30°F	70 mm	16	5
December	-1°C / 30°F	-5°C / 23°F	55 mm	17	9