Helsinki Weather History
Finland · Europe · Weather data 1976–today
Helsinki sits 6698km from the equator, 25m above sea level. That combination gives it a climate with warm summers and cold, snowy winters (Warm-summer humid continental climate). Its record high is 29.9°C, set 2019-07-28, its record low -34.2°C, set 1987-01-10.
Data through September 20, 2026.
Frequently asked questions about the weather in Helsinki
What is the hottest temperature ever recorded in Helsinki?
The highest temperature in this record for Helsinki is 29.9°C, measured on 2019-07-28. That is a recorded daily value from Helsinki's own series covering 1976 to 2025, not an estimate or a regional average.
What is the coldest temperature ever recorded in Helsinki?
The lowest temperature in this record for Helsinki is -34.2°C, measured on 1987-01-10. Together with the heat record above, that spans the full range this city has actually experienced across 1976 to 2025.
How much rain does Helsinki get a year?
Helsinki averages 685mm of precipitation a year, spread across roughly 131 days with at least 1mm. That average is taken over 50 complete calendar years, so one exceptionally wet or dry year does not set the figure.
What was the wettest day on record in Helsinki?
On 1996-07-09, 44.6mm fell on Helsinki, the highest single-day total in this series. For scale, that is roughly 7% of what the city receives in an average full year, in one day.
How many hours of sunshine does Helsinki get a year?
Helsinki averages 2748 sunshine hours a year, which works out to about 7.5 hours a day across the whole year. Sunshine hours measure the time direct sunlight actually reaches the ground, not simply how long it is light.
How warm are summers and how cold are winters in Helsinki?
Across the summer months Helsinki averages a daytime high near 19.3°C, while winter nights average -6°C. The seasons here are set from Helsinki's position relative to the equator rather than a fixed northern-hemisphere calendar.
What is the strongest wind recorded in Helsinki?
The strongest wind speed recorded in Helsinki is 51 km/h, on 1995-01-23. That is the daily maximum sustained wind rather than the peak gust, which typically runs higher still.
