Mariehamn (Finland) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
Sunny.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Mariehamn
Tuesday (17 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
 |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
12°
|
13°
|
14°
|
15°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
15°
|
14°
|
12°
|
12°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
13°
|
12°
|
11°
|
| Wind direction and speed |
WSW
10
|
WSW
10
|
W
10
|
W
10
|
W
10
|
WNW
8
|
WNW
8
|
WNW
7
|
WNW
7
|
WNW
8
|
WNW
8
|
WNW
8
|
WNW
8
|
WNW
8
|
WNW
8
|
WNW
6
|
W
6
|
W
6
|
W
6
|
WSW
5
|
WSW
5
|
SSW
5
|
SSW
5
|
SSW
6
|
| Wind gust (mph) |
14
|
14
|
14
|
13
|
12
|
12
|
10
|
10
|
12
|
13
|
15
|
16
|
16
|
16
|
15
|
14
|
12
|
12
|
11
|
10
|
8
|
7
|
8
|
8
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
83%
|
84%
|
86%
|
86%
|
85%
|
84%
|
84%
|
82%
|
75%
|
72%
|
67%
|
66%
|
65%
|
64%
|
64%
|
63%
|
63%
|
63%
|
65%
|
68%
|
71%
|
73%
|
75%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | - | - |
Wednesday (18 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
9°
|
11°
|
13°
|
15°
|
16°
|
18°
|
18°
|
19°
|
19°
|
19°
|
18°
|
18°
|
18°
|
18°
|
17°
|
15°
|
13°
|
13°
|
| Feels like temperature (°C) |
10°
|
10°
|
10°
|
10°
|
9°
|
8°
|
8°
|
10°
|
13°
|
15°
|
16°
|
17°
|
17°
|
17°
|
17°
|
18°
|
17°
|
17°
|
17°
|
16°
|
15°
|
14°
|
12°
|
11°
|
| Wind direction and speed (mph) |
SW
6
|
SW
6
|
WSW
6
|
WSW
6
|
WSW
5
|
W
5
|
W
5
|
W
5
|
W
5
|
WSW
4
|
WSW
4
|
SW
5
|
SW
5
|
SW
6
|
SW
6
|
SW
6
|
SSW
6
|
SSW
7
|
SSW
7
|
S
8
|
S
7
|
SSE
6
|
SSE
6
|
SSE
7
|
| Wind gust (mph) |
8
|
8
|
8
|
8
|
7
|
7
|
7
|
7
|
8
|
9
|
10
|
12
|
13
|
13
|
14
|
14
|
13
|
14
|
13
|
12
|
11
|
10
|
10
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
77%
|
77%
|
78%
|
79%
|
80%
|
80%
|
81%
|
81%
|
81%
|
77%
|
69%
|
62%
|
59%
|
57%
|
57%
|
55%
|
55%
|
56%
|
57%
|
62%
|
65%
|
68%
|
73%
|
74%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | - | - |
Thursday (19 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
20%
|
10%
|
10%
|
10%
|
20%
|
30%
|
30%
|
30%
|
30%
|
40%
|
30%
|
30%
|
20%
|
30%
|
20%
|
20%
|
20%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
| Temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
14°
|
15°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
17°
|
16°
|
15°
|
14°
|
14°
|
13°
|
| Feels like temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
11°
|
12°
|
14°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
16°
|
15°
|
14°
|
13°
|
12°
|
12°
|
| Wind direction and speed (mph) |
SSE
7
|
SSE
7
|
SSE
6
|
SSE
6
|
SE
6
|
ESE
7
|
ESE
7
|
ESE
7
|
ESE
7
|
ESE
7
|
SE
7
|
ESE
7
|
ESE
8
|
ESE
8
|
SSE
7
|
SW
7
|
SW
7
|
W
8
|
WSW
9
|
WSW
8
|
WSW
8
|
SW
8
|
WSW
8
|
WSW
8
|
| Wind gust (mph) |
10
|
9
|
9
|
9
|
9
|
10
|
10
|
10
|
11
|
12
|
12
|
13
|
14
|
13
|
13
|
14
|
13
|
15
|
14
|
13
|
12
|
12
|
12
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
77%
|
78%
|
79%
|
81%
|
81%
|
82%
|
82%
|
82%
|
78%
|
78%
|
75%
|
74%
|
71%
|
71%
|
73%
|
73%
|
69%
|
71%
|
74%
|
76%
|
78%
|
81%
|
82%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - |
Friday (20 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
<5%
|
<5%
|
| Temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
15°
|
16°
|
17°
|
17°
|
18°
|
18°
|
19°
|
19°
|
19°
|
18°
|
18°
|
17°
|
15°
|
14°
|
14°
|
| Feels like temperature (°C) |
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
14°
|
15°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
14°
|
13°
|
13°
|
| Wind direction and speed (mph) |
WSW
8
|
SW
9
|
WSW
9
|
WSW
9
|
WSW
9
|
WSW
10
|
WSW
9
|
WSW
9
|
WSW
9
|
WSW
9
|
WSW
9
|
WSW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
10
|
SW
9
|
SW
9
|
SW
9
|
| Wind gust (mph) |
13
|
13
|
14
|
14
|
14
|
13
|
13
|
14
|
15
|
16
|
17
|
17
|
18
|
19
|
19
|
18
|
17
|
17
|
17
|
16
|
15
|
13
|
13
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
83%
|
83%
|
83%
|
83%
|
84%
|
85%
|
85%
|
85%
|
85%
|
83%
|
80%
|
77%
|
76%
|
75%
|
74%
|
74%
|
73%
|
73%
|
74%
|
76%
|
81%
|
82%
|
83%
|
84%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | - | - |
Saturday (21 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
<5%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
13°
|
13°
|
15°
|
17°
|
17°
|
16°
|
14°
|
| Feels like temperature (°C) |
13°
|
12°
|
12°
|
12°
|
11°
|
15°
|
16°
|
16°
|
15°
|
13°
|
| Wind direction and speed (mph) |
SW
9
|
SW
9
|
SW
8
|
WSW
8
|
W
7
|
WNW
7
|
NW
8
|
NW
8
|
NNW
8
|
NNW
6
|
| Wind gust (mph) |
13
|
12
|
12
|
12
|
12
|
14
|
16
|
16
|
14
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
85%
|
85%
|
86%
|
87%
|
88%
|
85%
|
76%
|
73%
|
72%
|
76%
|
| UV | - | - | - | - | 1 | 2 | 4 | 4 | 1 | 1 |
Sunday (22 August 2026)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
20%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
13°
|
13°
|
13°
|
15°
|
16°
|
16°
|
16°
|
14°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
13°
|
14°
|
14°
|
14°
|
13°
|
| Wind direction and speed (mph) |
NW
8
|
NW
9
|
NNW
9
|
NNW
10
|
NW
12
|
NW
13
|
NW
12
|
NW
8
|
| Wind gust (mph) |
12
|
13
|
16
|
20
|
23
|
23
|
20
|
13
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
81%
|
85%
|
87%
|
80%
|
71%
|
70%
|
68%
|
74%
|
| UV | - | - | 1 | 1 | 4 | 4 | 1 | 1 |
Monday (23 August 2026)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
20%
|
30%
|
20%
|
20%
|
10%
|
| Temperature (°C) |
13°
|
13°
|
14°
|
15°
|
16°
|
17°
|
16°
|
15°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
14°
|
14°
|
15°
|
14°
|
13°
|
| Wind direction and speed (mph) |
NW
8
|
NW
9
|
NW
9
|
NW
9
|
NW
10
|
NW
11
|
NW
10
|
NNW
9
|
| Wind gust (mph) |
13
|
13
|
14
|
18
|
20
|
20
|
18
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
81%
|
82%
|
84%
|
83%
|
74%
|
71%
|
74%
|
81%
|
| UV | - | - | 1 | 2 | 4 | 4 | 1 | 1 |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 1am (UTC+3) Tuesday
Updated 19:05 (UTC+1) on Mon 17 Aug 2026
Loading map...