Mariehamn weather live forecast

Today's maximum temperature in Mariehamn is expected to be 9°C. Select a day from the live weather forecast for Mariehamn, Finland for more weather parameters.

Monday
19th Oct
9

4

5

1
Tuesday
20th Oct
10

5

6

1
Wednesday
21st Oct
11

8

0

1
Thursday
22nd Oct
12

9

0

0
Friday
23rd Oct
12

9

4

0

5-day weather forecast updated at 04:00 on Sunday 18th October 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 Monday 19th October 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 9°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the south.

9
°C maximum temperature
4
°C minimum temperature
scattered clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
9
°C wind chill
6
kph wind from S

Mariehamn weather for Tuesday 20th October 2026

Expect scattered clouds in Mariehamn, Finland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

10
°C maximum temperature
5
°C minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
14
kph wind from E

Mariehamn weather for Wednesday 21st October 2026

Expect overcast skies in Mariehamn, Finland with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-east.

11
°C maximum temperature
8
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
19
kph wind from SE

Mariehamn weather for Thursday 22nd October 2026

Expect overcast skies in Mariehamn, Finland with a maximum temperature of 12°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-east.

12
°C maximum temperature
9
°C minimum temperature
overcast skies
0
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
18
kph wind from SE

Mariehamn weather for Friday 23rd October 2026

Expect sunshine and showers in Mariehamn, Finland with a maximum temperature of 12°C and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 44% chance of some rain and a gentle breeze of 18 kph from the south-west.