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Turku in December: Weather, Average temperature and Climate

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

Weather in Turku in December 2024

Uncomfortable Weather
Cool
🌨️
Snowy
🌊
Cold water
December may not be the ideal time to visit Turku, as the weather can be not ideal. The daily average high temperature does not get higher than +1°C, and there are only about 3 sunny days in the month. Typically there are also 12 snowy days, a total monthly rainfall of approximately 30 mm. Pack for extremes to ensure that you are as comfortable as possible. Search flights in one click on Avionero.
Good to know:
  • December is usually the wettest month of the year in Turku;

Average weather

☀️
+1°C
Avg. max. temperature
-23°C
Min.
+11°C
Max.
26 mm
Total precipitation
89%
Avg. humidity
3 m/s
Avg. wind
3 ☀️
Sunny Days
11 ⛅️
Cloudy
5 🌦
Rainy
Our opinion: Turku has uncomfortable weather in December.

Average temperature in Turku in December

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

The expected average maximum temperature in December is -2°C with a maximum of +6°C and a minimum of -17°C.

The average maximum temperature goes down 22% by the end of the month, compared with the beginning of the month, from -4°C to -9°C.

Is Turku warm or cold in December?

Turku is typically cool in December.

Maximum temperatures go down compared to the previous month from +4°C to +1°C. The minimum temperature also goes down from 0°C to -4°C.

Pack a sweater and a jacket as there will be cooler temperatures.

December is one of the coolest months in Turku, here is the comparison with other months:

Water temperature in Turku in December

Water in Turku in December is Cold. It varies from -1°C to +6°C, with an average of +2°C. Note that the air temperature is lower than the water temperature, averaging around +1°C.

In December, water temperatures are average relative to the rest of the 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 December?

We would not recommend swimming in Turku in December, the water is very cold (+2°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 December

Turku weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+4°C+1°C-2°C
Min. temperature
-18°C-23°C-36°C
Max. temperature
+14°C+11°C+9°C
Rainfall
45 mm26 mm13 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+5°C+2°C+1°C
Humidity
89%89%88%
Air pressure
1010 HPa1007 HPa1008 HPa
Sunny days
233
Cloudy days
111112
Rainy days
1053
Snowy days
71213

December weather is still as bad as in November. It’s getting colder in December. From +4°C in the day, the average maximum temperature lowers to +1°C. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 45 mm to 26 mm. Humidity levels don’t change as the month goes on, averaging around 89%. The average wind speed doesn’t change much during December, staying around 3 m/s. The good news is there are likely to be more sunny days in December, from 2 to 3.

But maybe it is worth considering traveling in January as the weather gets better.

Wind

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

The average wind speed is 3 m/s getting up to 6 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 decreasing during December, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in Turku based on historical data.
Last Year
Historical Data
Total precipitation in December is about 6 mm, with a 6% chance of rain on a typical day. The maximum amount of rainfall per day is around 5 mm, which is considered light rain. Turku is amazing in December with as little as 2 rainy days on average, so plan adventures in the great outdoors.
Here’s how December 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 December in Turku based on historical data.
Last Year
Historical Data
The total snow in December is about 20 mm, with a 39% chance of snow on a typical day.

December is one of the snowiest months in Turku.

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

How was the weather last December in Turku?

This is the weather in Turku in December 2023:
1 December
🌨️
-4°C
2 December
☁️
-6°C
3 December
☁️
-9°C
4 December
☁️
-11°C
5 December
🌨️
-5°C
6 December
🌨️
-2°C
7 December
☁️
-3°C
8 December
🌨️
-4°C
9 December
🌨️
-6°C
10 December
☁️
-4°C
11 December
☁️
-3°C
12 December
🌨️
-7°C
13 December
🌨️
-8°C
14 December
🌨️
-6°C
15 December
🌨️
-2°C
16 December
☁️
+5°C
17 December
☀️
+4°C
18 December
🌫️
+3°C
19 December
☀️
+6°C
20 December
☀️
+2°C
21 December
☁️
+1°C
22 December
🌨️
+1°C
23 December
🌨️
+1°C
24 December
☁️
-1°C
25 December
☁️
-2°C
26 December
☁️
-2°C
27 December
☁️
-1°C
28 December
☁️
0°C
29 December
☁️
+1°C
30 December
🌨️
-1°C
31 December
☀️
-9°C
In December 2023 Turku had 4 sunny days, 14 cloudy days, and 0 rainy days. The average maximum temperature was -2°C, with an absolute maximum of +6°C and a minimum of -11°C. The average humidity was 91%, with a maximum of 100% and a minimum of 69%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change over Years

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

The climate in Turku in December 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 December:

Is December a good time to visit Turku?

There is never a bad time to go to Turku, but the weather isn’t the best in December, so plan on enjoying the great indoor attractions of Turku and pack for the extremes in weather.

Can you sunbathe in Turku in December?

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

Can you swim in Turku in December?

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

Is Turku rainy in December?

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

Is it sunny in Turku in December?

Usually, it’s not very sunny in Turku in December, 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.