Mariehamn weather live forecast

Today's maximum temperature in Mariehamn is expected to be 18°C. Select a day from the live weather forecast for Mariehamn, Finland for more weather parameters.

Tuesday
21st Jul
18

11

13

5
Wednesday
22nd Jul
18

11

2

3
Thursday
23rd Jul
19

13

4

4
Friday
24th Jul
20

12

2

4
Saturday
25th Jul
19

15

1

4

5-day weather forecast updated at 04:00 on Tuesday 21st 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 Tuesday 21st July 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
13
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
21
kph wind from N

Mariehamn weather for Wednesday 22nd July 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from N

Mariehamn weather for Thursday 23rd July 2026

Expect mostly cloudy with light rain in Mariehamn, Finland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 19 kph from the north.

19
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
4
UV index (Moderate)
40
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
19
kph wind from N

Mariehamn weather for Friday 24th July 2026

Expect broken clouds in Mariehamn, Finland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

20
°C maximum temperature
12
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
17
kph wind from S

Mariehamn weather for Saturday 25th July 2026

Expect mostly cloudy with light rain in Mariehamn, Finland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a moderate breeze of 22 kph from the south.