Mariehamn weather live forecast

Today's maximum temperature in Mariehamn is expected to be -4°C. Select a day from the live weather forecast for Mariehamn, Finland for more weather parameters.

Wednesday
18th Feb
-4

-10

0

0
Thursday
19th Feb
-6

-12

2

1
Friday
20th Feb
-3

-12

9

1
Saturday
21st Feb
0

-7

0

1
Sunday
22nd Feb
0

-6

2

0

5-day weather forecast updated at 04:01 on Wednesday 18th February 2026 GMT

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The 5-day weather forecast for Finland (Mariehamn) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Mariehamn weather forecast by day

Below are the detailed weather forecasts for Mariehamn for the next 5 days.

Mariehamn weather for Wednesday 18th February 2026

Expect overcast skies in Mariehamn, Finland with a maximum temperature of -4°C and no hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the east.

-4
°C maximum temperature
-10
°C minimum temperature
overcast skies
0
hours of sunshine
0
UV index (None)
0
cm of snow expected
-9
°C wind chill
11
kph wind from E

Mariehamn weather for Thursday 19th February 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of -6°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 10 kph from the north.

-6
°C maximum temperature
-12
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-10
°C wind chill
10
kph wind from N

Mariehamn weather for Friday 20th February 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of -3°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the west.

-3
°C maximum temperature
-12
°C minimum temperature
broken clouds
9
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-8
°C wind chill
16
kph wind from W

Mariehamn weather for Saturday 21st February 2026

Expect mostly cloudy with light snow in Mariehamn, Finland with a maximum temperature of 0°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 54% chance of some snow and a gentle breeze of 19 kph from the south-west.

0
°C maximum temperature
-7
°C minimum temperature
mostly cloudy with light snow
0
hours of sunshine
1
UV index (Low)
54
% chance of some snow
<2
cm of snow expected
-6
°C wind chill
19
kph wind from SW

Mariehamn weather for Sunday 22nd February 2026

Expect mostly cloudy with light snow in Mariehamn, Finland with a maximum temperature of 0°C and 2 hours of bright sunshine. There are 2-5 cm of snow expected with 50% chance of some snow and a gentle breeze of 13 kph from the north-west.