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Weather in Mariehamn for December 2025

Your guide to Mariehamn weather in December - trends and predictions

    Snow Forecast ❄️

  • The climate of Mariehamn in December is quite snowy, averaging 14 snowy days.

    • Temperatures

  • In general, the average temperature in Mariehamn at the beginning of December is 2.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 3.3 °C by the end of December.

Average dry days
9
Dry days
Average rainy days
8
Rainy days
Average snowy days
14
Snow days
Average temperatures
2°/0°
Temperatures
Average wind speed
37 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Mariehamn Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Blowing snow
3°
2
Moderate or heavy snow showers
2°
3
Moderate or heavy snow showers
2°
4
Moderate or heavy snow showers
2°
5
Partly cloudy
2°
6
Light snow
3°
7
Light snow showers
2°
8
Blizzard
2°
9
Blizzard
2°
10
Light snow showers
2°
11
Blizzard
3°
12
Blizzard
1°
13
Light snow showers
1°
14
Light snow showers
1°
15
Light snow
1°
16
Patchy rain possible
6°
17
Patchy rain possible
5°
18
Overcast
4°
19
Patchy rain possible
6°
20
Partly cloudy
3°
21
Moderate or heavy snow showers
3°
22
Patchy rain possible
4°
23
Heavy rain at times
3°
24
Light snow
2°
25
Overcast
3°
26
Patchy rain possible
4°
27
Moderate rain at times
3°
28
Overcast
3°
29
Moderate or heavy rain shower
5°
30
Overcast
4°
31
Light snow
1°
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Access Mariehamn weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Temperatures trend during December in Mariehamn

See the weather trend as well as the moving average line

December weather day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Blowing snow
Blowing snow
 3° /2° 0.6 mm 0.1 cm
2 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /1° 2.9 mm 0.5 cm
3 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-1° 5.1 mm 1.2 cm
4 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /0° 1 mm 0.5 cm
5 Dec. Partly cloudy
Partly cloudy
 2° /-1° 0.4 mm 0.1 cm
6 Dec. Light snow
Light snow
 3° /0° 1 mm 0.1 cm
7 Dec. Light snow showers
Light snow showers
 2° /1° 1.1 mm 0.3 cm
8 Dec. Blizzard
Blizzard
 2° /2° 2.2 mm 0.1 cm
9 Dec. Blizzard
Blizzard
 2° /1° 1 mm 0 cm
10 Dec. Light snow showers
Light snow showers
 2° /1° 0.7 mm 0.2 cm
11 Dec. Blizzard
Blizzard
 3° /1° 1.1 mm 0 cm
12 Dec. Blizzard
Blizzard
 1° /0° 1 mm 0 cm
13 Dec. Light snow showers
Light snow showers
 1° /-1° 0.2 mm 0 cm
14 Dec. Light snow showers
Light snow showers
 1° /-1° 5.1 mm 0.8 cm
15 Dec. Light snow
Light snow
 1° /-2° 0.8 mm 0.1 cm
16 Dec. Patchy rain possible
Patchy rain possible
 6° /0° 0.7 mm 0.1 cm
17 Dec. Patchy rain possible
Patchy rain possible
 5° /2° 0.1 mm 0 cm
18 Dec. Overcast
Overcast
 4° /2° 6.2 mm 0.5 cm
19 Dec. Patchy rain possible
Patchy rain possible
 6° /2° 0.8 mm 0 cm
20 Dec. Partly cloudy
Partly cloudy
 3° /0° 1.5 mm 1 cm
21 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 3° /0° 3.2 mm 1.9 cm
22 Dec. Patchy rain possible
Patchy rain possible
 4° /1° 2.8 mm 0 cm
23 Dec. Heavy rain at times
Heavy rain at times
 3° /0° 3.6 mm 0.4 cm
24 Dec. Light snow
Light snow
 2° /-1° 0.3 mm 0 cm
25 Dec. Overcast
Overcast
 3° /0° 1.2 mm 0 cm
26 Dec. Patchy rain possible
Patchy rain possible
 4° /1° 0.9 mm 0.3 cm
27 Dec. Moderate rain at times
Moderate rain at times
 3° /1° 1.9 mm 0 cm
28 Dec. Overcast
Overcast
 3° /0° 0.8 mm 0 cm
29 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /2° 5.4 mm 0 cm
30 Dec. Overcast
Overcast
 4° /0° 2.3 mm 0.2 cm
31 Dec. Light snow
Light snow
 1° /-1° 0.7 mm 0 cm
Next
Important Notice
Our weather forecast for Mariehamn in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mariehamn forecast closer to your planned date for the most up-to-date weather information.

Guide for Mariehamn in December

In December, Mariehamn, Aland Islands experiences a transition from late autumn to early winter. At the beginning of the month, the weather in Mariehamn is typically chilly with temperatures averaging around 3°. The days are short, and the island experiences only a few hours of daylight.

The weather is often overcast, and occasional rain showers can be expected. As the month progresses, the temperatures continue to drop, and by the end of December, the average temperature in Mariehamn hovers around 0°.

The island may also experience some snowfall, creating a picturesque winter wonderland.

The weather in Mariehamn in December is characterized by a cold and dark atmosphere, making it an ideal destination for travelers seeking a cozy winter retreat.

Visitors can enjoy the festive holiday atmosphere and partake in traditional winter activities such as ice skating, sledding, and exploring the charming Christmas markets.

The island's natural beauty is accentuated by the winter weather, offering a serene and tranquil setting for those looking to escape the hustle and bustle of city life.

Have you visited Mariehamn in December? Share your experience by writing a review.

Mariehamn in December - FAQ

What are the expected maximum and minimum temperatures in Mariehamn during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Mariehamn during December?
In December, Mariehamn can expect light to moderate rainfall, totaling 47 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Mariehamn in December 2025?
Mariehamn experiences an average snowfall of 5.375 cm during December, occurring over 14 days.
What are the typical wind conditions in Mariehamn during December?
The average wind speed in Mariehamn during December is 37 km/h, suggesting breezy to windy conditions, depending on your activities.

Mariehamn snow forecast December 2025

Track daily snowfall levels and discover Mariehamn’s snowy potential this December ❄️

December rainfall patterns in Mariehamn

Explore the daily rainfall trends and prepare for Mariehamns December weather 💧

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Location coordinates Where is Mariehamn?

Get accurate weather forecasts for Mariehamn, located at latitude 60.097 and longitude 19.935. Stay updated with localized weather information tailored for Mariehamn.

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