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Mariehamn weather by month
Check out Mariehamn weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Mariehamn (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | -1 |
-2 |
1 |
6 |
12 |
17 |
19 |
18 |
14 |
9 |
5 |
1 |
Min temperature (night-time) | -7 |
-8 |
-5 |
-1 |
4 |
9 |
12 |
11 |
7 |
4 |
0 |
-4 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Sea temperature | 2 |
1 |
0 |
1 |
5 |
10 |
15 |
17 |
13 |
9 |
6 |
4 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Mariehamn
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 7 |
9 |
12 |
15 |
17 |
19 |
18 |
16 |
13 |
10 |
7 |
6 |
UV Index (Maximum) | 0 |
0 |
1 |
3 |
4 |
5 |
5 |
4 |
3 |
1 |
0 |
0 |
Rainfall in Mariehamn
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 20 |
15 |
14 |
11 |
10 |
10 |
12 |
14 |
16 |
16 |
19 |
19 |
Average monthly rainfall (mm) | 36 |
25 |
25 |
29 |
27 |
33 |
52 |
64 |
61 |
53 |
59 |
44 |
More about Mariehamn
Mariehamn by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Finland
The climate guide for Finland (Mariehamn) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Mariehamn?
Mariehamn has a cold climate with warm summers and some rainfall in all months.
Metric (°C / mm) | Imperial (°F / inches)
Compare Mariehamn with the USA
Below the Mariehamn chart shows average maximum daytime temperature for Mariehamn, Finland and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Mariehamn weather >>
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