Climate averages 1991–2020

Weather in Finland.

ClimaNote covers 13 cities in Finland, starting with Helsinki, Espoo and Tampere. Open a city for charts and a table of all 12 months, or open a month for a side-by-side comparison of cities in the atlas.

Across these cities the yearly average high ranges from 5.8°C in Oulu to 9.0°C in Turku, and yearly precipitation from 573 mm in Oulu to 672 mm in Joensuu (tied with Kuopio). The hottest city-month is July in Vantaa, with an average high of 21.9°C, and the coolest is February in Joensuu, at -6.4°C. By single month, the most precipitation falls in July in Kuopio, with 89 mm, and the least in February in Oulu, with 29 mm.

July is the warmest month in every city; February is the coolest in every city. July is the wettest month in 7 cities, August in 2 and June in 1 (in 3 other cities two or more months tie); April is the driest in 4 cities, February in 3 and March in 2 (in 4 other cities two or more months tie). Of these cities, all have a month with an average high below 2.0°C; none has a month with under 1 mm of precipitation or a month with more than 300 mm of precipitation.