Mariehamn weather live forecast

Today's maximum temperature in Mariehamn is expected to be 17°C. Select a day from the live weather forecast for Mariehamn, Finland for more weather parameters.

Sunday
24th May
17

12

10

UV5
Monday
25th May
15

10

7

UV4
Tuesday
26th May
14

9

3

UV4
Wednesday
27th May
13

8

4

UV3
Thursday
28th May
14

7

3

UV4

5-day weather forecast updated at 04:00 on Saturday 23rd May 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 Sunday 24th May 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-west.

17
°C maximum temperature
12
°C minimum temperature
broken clouds
10
hours of sunshine
UV5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from NW

Mariehamn weather for Monday 25th May 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

15
°C maximum temperature
10
°C minimum temperature
broken clouds
7
hours of sunshine
UV4
UV index (Moderate)
0
mm of rainfall expected
15
°C wind chill
19
kph wind from NW

Mariehamn weather for Tuesday 26th May 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

14
°C maximum temperature
9
°C minimum temperature
broken clouds
3
hours of sunshine
UV4
UV index (Moderate)
0
mm of rainfall expected
14
°C wind chill
18
kph wind from NW

Mariehamn weather for Wednesday 27th May 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north-west.

13
°C maximum temperature
8
°C minimum temperature
broken clouds
4
hours of sunshine
UV3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
32
kph wind from NW

Mariehamn weather for Thursday 28th May 2026

Expect mostly cloudy with light rain in Mariehamn, Finland with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 9% chance of some rain and a moderate breeze of 27 kph from the north-west.