Helsinki

Southern Finland Weather & Climate: Finland

Climate by month across Southern Finland, Finland, average temperatures, rainfall and the best time to visit.

Climate overview of Southern Finland

When planning a visit to Southern Finland in Finland, it helps to know that temperatures typically range from -1°C (30°F) in February up to 23°C (73°F) during the peak of July. Our detailed climate overview is based on data from Helsinki, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

Southern Finland offers pleasant conditions in June, July and August, with temperatures typically ranging from 20°C (68°F) to 23°C (73°F).

The colder weather is most prominent in the months of January, February, March, April, October, November and December.

When it comes to rainfall, Southern Finland experiences moderate variations in precipitation across the seasons. You can expect around 80 mm (3.1 in) of rain in July, dropping to 42 mm (1.7 in) in March.

June is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Explore Southern Finland by month

Pick a month to see the average temperature, rainfall and sunshine in Southern Finland — and find the best time to visit. (based on Helsinki)

Popular cities by month

Compare cities per month. Toggle cities on/off.

Helsinki Turku Rauha Espoo Naantali Vantaa
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Southern Finland

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Helsinki -1°C (30°F) 23°C (73°F) -8°C (18°F) 14°C (57°F) 736 mm (29 in) 1,840 hours
Turku 0°C (32°F) 23°C (73°F) -8°C (18°F) 13°C (55°F) 722 mm (28 in) 1,843 hours
Rauha -3°C (27°F) 23°C (73°F) -10°C (14°F) 14°C (57°F) 730 mm (29 in)
Espoo -1°C (30°F) 22°C (72°F) -7°C (19°F) 14°C (57°F) 733 mm (29 in) 1,840 hours
Naantali 0°C (32°F) 22°C (72°F) -7°C (19°F) 13°C (55°F) 722 mm (28 in) 1,843 hours
Vantaa -1°C (30°F) 23°C (73°F) -8°C (18°F) 14°C (57°F) 736 mm (29 in) 1,840 hours

Places in Southern Finland, Finland

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.