Mariehamn weather live forecast

Today's maximum temperature in Mariehamn is expected to be 20°C. Select a day from the live weather forecast for Mariehamn, Finland for more weather parameters.

Wednesday
29th Jul
20

14

11

4
Thursday
30th Jul
21

16

11

4
Friday
31st Jul
22

17

6

4
Saturday
1st Aug
19

14

13

4
Sunday
2nd Aug
19

14

14

4

5-day weather forecast updated at 04:00 on Wednesday 29th July 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 29th July 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

20
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
15
kph wind from S

Mariehamn weather for Thursday 30th July 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south.

21
°C maximum temperature
16
°C minimum temperature
scattered clouds
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from S

Mariehamn weather for Friday 31st July 2026

Expect isolated thunderstorms in Mariehamn, Finland with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a moderate breeze of 25 kph from the south.

22
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
4
UV index (Moderate)
37
% chance of some rain
<2
mm of rainfall expected
22
°C wind chill
25
kph wind from S

Mariehamn weather for Saturday 1st August 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

19
°C maximum temperature
14
°C minimum temperature
scattered clouds
13
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Mariehamn weather for Sunday 2nd August 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.