Finland Weather by Month — Temperature & Rainfall Guide

Many people wonder what the weather conditions are in Finland over the year. What is the best time to visit Finland?

This page shows the average weather conditions by month in Finland over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Finland is generally poor. January is a winter month. The temperatures range from very low in Kilpisjärvi with -7°C (19°F) to low in Föglö with 3°C (37°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Finland in January here.

In February the weather in Finland is generally poor. February is a winter month. The average maximum daytime temperatures are very low and range from -8°C (18°F) in Kilpisjärvi to 1°C (34°F) in Mariehamn. On average, this month is one of the coldest months of the year in Finland. So be prepared and make sure to dress up warm.

Find more detailed climate information for Finland in February here.

In March the weather in Finland is generally poor. The temperatures range from very low in Kilpisjärvi with -4°C (25°F) to low in Säkylä with 4°C (39°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Finland in March here.

In April the weather in Finland is generally poor. The temperatures range from very low in Kilpisjärvi with 0°C (32°F) to low in Säkylä with 10°C (50°F).

Find more detailed climate information for Finland in April here.

In May the weather in Finland ranges from poor in Levi to tolerable in Helsinki. The temperatures range from low in Kilpisjärvi with 5°C (41°F) to moderate in Orimattila with 17°C (63°F).

Find more detailed climate information for Finland in May here.

In June the weather in Finland ranges from unpleasant in Kilpisjärvi to perfect in Helsinki. June is a summer month. The temperatures range from low in Kilpisjärvi with 11°C (52°F) to pleasant in Saaramaa with 21°C (70°F).

Find more detailed climate information for Finland in June here.

In July the weather in Finland ranges from unpleasant in Kilpisjärvi to perfect in Helsinki. July is a summer month. The temperatures range from moderate in Kilpisjärvi with 15°C (59°F) to high in Saaramaa with 24°C (75°F). On average, this month is the warmest month of the year in Finland.

Find more detailed climate information for Finland in July here.

In August the weather in Finland ranges from unpleasant in Kilpisjärvi to perfect in Helsinki. August is a summer month. The temperatures range from moderate in Kilpisjärvi with 13°C (55°F) to pleasant in Laukkoski with 22°C (72°F).

Find more detailed climate information for Finland in August here.

In September the weather in Finland ranges from poor in Kilpisjärvi to tolerable in Helsinki. The temperatures range from low in Kilpisjärvi with 8°C (46°F) to moderate in Turku with 17°C (63°F).

Find more detailed climate information for Finland in September here.

In October the weather in Finland ranges from poor in Helsinki to unpleasant in Mariehamn. The temperatures range from very low in Kilpisjärvi with 1°C (34°F) to low in Kökar with 11°C (52°F).

Find more detailed climate information for Finland in October here.

In November the weather in Finland is generally poor. The temperatures range from very low in Kilpisjärvi with -3°C (27°F) to low in Kökar with 8°C (46°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Finland in November here.

In December the weather in Finland is generally poor. December is a winter month. The temperatures range from very low in Kilpisjärvi with -6°C (21°F) to low in Kökar with 5°C (41°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Finland in December here.