Helsinki

Southern Finland Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in Southern Finland, Finland in January.

Considering a trip to Southern Finland, Finland this January and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Southern Finland in January

Southern Finland, Finland is a region in Finland. January in Southern Finland generally has very cold temperatures, with moderate precipitation. January is a winter month.

Temperatures

The average maximum temperatures are very cold and range from -3°C (27°F) in Parikkala to 2°C (36°F) in Hanko. Nighttime temperatures generally drop to -3°C (27°F) in Hanko and -10°C (14°F) in Parikkala. In numerous regions in Finland, January is marked by its cold weather conditions. If you're heading to these areas during this month, it's vital to be well-prepared. Dressing in layered and insulated outfits will ensure you stay warm.

For specific regional insights in Southern Finland, Finland, refer to the map provided below.

Precipitation

In January, precipitation varies across different areas. From moderate snowfall in Sysmä with an average of 48 mm (1.9 in) to moderate snowfall in Kirkkonummi with 62 mm (2.4 in).

Average sunshine

Sunshine is more restricted in many locations in January. Helsinki sees roughly 39 hours of sunlight. Our weather planner can help you find destinations with more sunshine if needed.

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)

Best Places to Visit in Southern Finland in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Southern Finland.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Southern Finland

What is the weather like in January for some of the most popular destinations in Southern Finland, Finland?

Temperature range in Southern Finland (January)

Precipitation variation in Southern Finland (January)

Helsinki

In January Helsinki generally has very low temperatures with maximum daytime temperatures around -1°C (30°F), minimum nighttime temperatures around -7°C (19°F) and moderate monthly snowfall. So on average the conditions are poor that month.

December
January
February
Max temperature
2°C (36°F)
-1°C (30°F)
-1°C (30°F)
Min temperature
-4°C (25°F)
-7°C (19°F)
-8°C (18°F)
Monthly sun hours
30 hours
39 hours
72 hours
Monthly snowfall
64 mm (2.5 in)
57 mm (2.2 in)
52 mm (2 in)
Monthly rainy days
21 days
20 days
17 days
Weather conditions

Turku

In January Turku generally has very low temperatures with maximum daytime temperatures around 0°C (32°F), minimum nighttime temperatures around -6°C (21°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
2°C (36°F)
0°C (32°F)
0°C (32°F)
Min temperature
-3°C (27°F)
-6°C (21°F)
-8°C (18°F)
Monthly sun hours
28 hours
42 hours
77 hours
Monthly snow/rainfall
64 mm (2.5 in)
56 mm (2.2 in)
48 mm (1.9 in)
Monthly rainy days
22 days
21 days
17 days
Weather conditions

Rauha

In January Rauha generally has very low temperatures with maximum daytime temperatures around -3°C (27°F), minimum nighttime temperatures around -9°C (16°F) and moderate monthly snowfall. So on average the conditions are poor that month.

December
January
February
Max temperature
0°C (32°F)
-3°C (27°F)
-3°C (27°F)
Min temperature
-6°C (21°F)
-9°C (16°F)
-10°C (14°F)
Monthly snowfall
62 mm (2.4 in)
52 mm (2 in)
49 mm (1.9 in)
Monthly rainy days
24 days
22 days
17 days
Weather conditions

Espoo

In January Espoo generally has very low temperatures with maximum daytime temperatures around 0°C (32°F), minimum nighttime temperatures around -6°C (21°F) and moderate monthly snowfall. So on average the conditions are poor that month.

December
January
February
Max temperature
2°C (36°F)
0°C (32°F)
-1°C (30°F)
Min temperature
-3°C (27°F)
-6°C (21°F)
-7°C (19°F)
Monthly sun hours
30 hours
39 hours
72 hours
Monthly snowfall
68 mm (2.7 in)
60 mm (2.4 in)
54 mm (2.1 in)
Monthly rainy days
21 days
20 days
16 days
Weather conditions

Naantali

In January Naantali generally has very low temperatures with maximum daytime temperatures around 0°C (32°F), minimum nighttime temperatures around -5°C (23°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
3°C (37°F)
0°C (32°F)
0°C (32°F)
Min temperature
-2°C (28°F)
-5°C (23°F)
-7°C (19°F)
Monthly sun hours
28 hours
42 hours
77 hours
Monthly snow/rainfall
66 mm (2.6 in)
56 mm (2.2 in)
48 mm (1.9 in)
Monthly rainy days
20 days
20 days
16 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Southern Finland, in Finland.

In our records: Finland January extremes

Notable January records observed across cities in Finland in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest January night in Finland dropped to -47°C (-53°F) in Saariselka on January 27, 1999.
  • In our records, the coldest January daytime high in Finland was -42°C (-44°F) in Saariselka on January 5, 1987.

Popular cities in January

Day & night temperatures, rainfall and average weather in Southern Finland in January.

City Weather Day temp Night temp Rainfall
Helsinki -1°C (30°F) -7°C (19°F) 57 mm (2.2 in)
Turku 0°C (32°F) -6°C (21°F) 56 mm (2.2 in)
Rauha -3°C (27°F) -9°C (16°F) 52 mm (2 in)
Espoo 0°C (32°F) -6°C (21°F) 60 mm (2.4 in)
Naantali 0°C (32°F) -5°C (23°F) 56 mm (2.2 in)
Vantaa -1°C (30°F) -7°C (19°F) 56 mm (2.2 in)

Southern Finland weather in January: frequently asked questions

What is the weather like in Southern Finland, Finland in January?

January in Southern Finland, Finland brings poor weather. In Helsinki, daytime temperatures are typically around -1°C (30°F) and nighttime lows hover near -7°C (19°F).

What is the average temperature in Southern Finland, Finland in January?

Daytime temperatures in Helsinki peak at roughly -1°C (30°F) in January, dropping to about -7°C (19°F) overnight.

Does Southern Finland, Finland get a lot of snow in January?

Rain is generally moderate to light in Southern Finland, Finland during January, with Helsinki averaging close to 57 mm (2.2 in).

Is January a Good Time to Visit Southern Finland, Finland?

In our view, January might not be the best time to travel to Southern Finland, Finland with often poor weather in Helsinki.

On average, the best time to visit Southern Finland, Finland is in June, July and August with generally perfect weather in Helsinki. In contrast, January, February, March, April, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Southern Finland.

Weather and climate has detailed information for every country in the world. Are you going to Finland? Get detailed historical weather averages for many cities in Finland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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