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Turku in January: Weather, Average temperature and Climate

Discover the weather for Turku in January and if it’s a good time to travel (based on historical data).
Check flight prices to Turku on Avionero:
January

Weather in Turku in January 2025

OK Weather
Cold
🌨️
Snowy
🌊
Cold water
January could be a good time to visit Turku, as the weather is generally fine. The average high temperature is around -2°C, and there are typically 3 sunny days in January. However, expect about 13 snowy days, and total monthly rainfall of approximately 36 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • January is usually the coldest month of the year in Turku;

Average weather

☀️
-2°C
Avg. max. temperature
-36°C
Min.
+9°C
Max.
13 mm
Total precipitation
88%
Avg. humidity
3 m/s
Avg. wind
3 ☀️
Sunny Days
12 ⛅️
Cloudy
3 🌦
Rainy
Our opinion: Turku has OK weather in January.

Average temperature in Turku in January

Here are the expected maximum, average and minimum temperatures in Turku for January based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in January is +1°C with a maximum of +4°C and a minimum of -11°C.

The average maximum temperature goes down 7% by the end of the month, compared with the beginning of the month, from +3°C to +2°C.

Is Turku warm or cold in January?

Turku is typically cold in January.

Maximum temperatures go down compared to the previous month from +1°C to -2°C. The minimum temperature also goes down from -4°C to -6°C.

Wear your winter warms as it will be cold. To save space, layer, and don’t forget gloves and a scarf.

January is the coldest month in Turku, here is the comparison with other months:

Water temperature in Turku in January

Water in Turku in January is Cold. It varies from -2°C to +3°C, with an average of +1°C. Note that the air temperature is lower than the water temperature, averaging around -2°C.

The water temperature in January is one of the coldest of the entire year:

The warmest water temperatures in Turku are reached in August, when the average sea temperature rises to +14°C. The coldest water temperatures are in February, with an average of 0°C.

Can you swim in Turku in January?

We would not recommend swimming in Turku in January, the water is very cold (+1°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Turku in January

Turku weather looks like this, on average, in January and the surrounding months.
DecemberJanuaryFebruary
Avg. temperature
+1°C-2°C-2°C
Min. temperature
-23°C-36°C-32°C
Max. temperature
+11°C+9°C+9°C
Rainfall
26 mm13 mm8 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+2°C+1°C0°C
Humidity
89%88%87%
Air pressure
1007 HPa1008 HPa1011 HPa
Sunny days
335
Cloudy days
111211
Rainy days
532
Snowy days
121311

January often has better weather than December. It’s getting colder in January. From +1°C in the day, the average maximum temperature lowers to -2°C. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 26 mm to 13 mm. It feels drier, as humidity decreases from 89% to 88%. The average wind speed doesn’t change much during January, staying around 3 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.

February brings much the same weather, it remains ok.

Wind

Wind speed in Turku in January based on historical data.
Last Year
Historical Data

The average wind speed is 6 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Turku is gradually increasing during January, going from 4 m/s to 7 m/s over the course of the month.

Rain

Amount of rainfall in mm during January in Turku based on historical data.
Last Year
Historical Data
Total precipitation in January is about 37 mm, with a 26% chance of rain on a typical day. The maximum amount of rainfall per day is around 6 mm, which is considered light rain. On average, there are about 8 rainy days during January, so prepare to bring an umbrella.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Turku wettest month is August, where a typical day has a 55% chance of precipitation and 75 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 8 mm of rainfall per day.

Snow

Amount of snow in mm during January in Turku based on historical data.
Last Year
Historical Data
The total snow in January is about 45 mm, with a 23% chance of snow on a typical day.

January is one of the snowiest months in Turku.

Here’s how January is compared with other months in the amount of snow, total mm:

How was the weather last January in Turku?

This is the weather in Turku in January 2023:
1 January
☀️
+3°C
2 January
🌨️
+1°C
3 January
🌨️
0°C
4 January
☁️
-1°C
5 January
☀️
-7°C
6 January
🌨️
-7°C
7 January
☁️
-4°C
8 January
🌨️
-3°C
9 January
🌨️
-3°C
10 January
🌨️
+3°C
11 January
☁️
+4°C
12 January
☁️
+4°C
13 January
☁️
+4°C
14 January
🌧️
+4°C
15 January
☁️
+4°C
16 January
🌧️
+4°C
17 January
🌨️
+2°C
18 January
☁️
+3°C
19 January
☁️
+1°C
20 January
☀️
0°C
21 January
🌫️
-1°C
22 January
🌫️
-3°C
23 January
☁️
0°C
24 January
☁️
+1°C
25 January
🌫️
+4°C
26 January
☀️
+3°C
27 January
☀️
-1°C
28 January
☁️
+2°C
29 January
☁️
+3°C
30 January
🌧️
+3°C
31 January
☁️
+2°C
In January 2023 Turku had 5 sunny days, 13 cloudy days, and 3 rainy days. The average maximum temperature was +1°C, with an absolute maximum of +4°C and a minimum of -7°C. The average humidity was 91%, with a maximum of 100% and a minimum of 68%. The average wind speed was 6 m/s, with a maximum of 17 m/s and a minimum of 0 m/s.
Are you planning a trip in January?

Climate Change over Years

This is how Turku climate have been changing during last 43 years period.

The climate in Turku in January has not changed much over the last 43 years.

The average temperature was the lowest in 1987 (+6°C) and the highest in 2020 (+11°C). The driest year was 2003 with only 300 mm of rainfall, and the wettest year was 2020 with 615 mm.

FAQ

Frequently asked questions about the weather in Turku in January:

Is January a good time to visit Turku?

It’s always a good time to visit Turku, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Turku in January?

Not really, January is not the best time to sunbathe, unless you visit a local solarium.

Can you swim in Turku in January?

Swimming in Turku in January is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Turku rainy in January?

Turku is usually dry in January. Plan your packing around outdoor activities and exploring.

Is it sunny in Turku in January?

Usually, it’s not very sunny in Turku in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Finland

Check out the weather for other cities in Finland.

Monthly weather in Turku

Source of the data

For this page, we’ve looked at the typical weather in Turku, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.