Medeltemperatur havet °C
| Region |
Okt |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
| Algarve |
20 |
18.6 |
16.9 |
16.1 |
15.7 |
15.6 |
16.7 |
| Lissabon |
19.8 |
18.1 |
16.5 |
15.7 |
15.2 |
15 |
16.2 |
| Stockholm |
10.1 |
7.2 |
4.9 |
2 |
1 |
1 |
3 |
| Oslo |
11.8 |
9 |
6.2 |
4.2 |
3.6 |
3 |
6.3 |
| Köpenhamn |
12.5 |
8.8 |
5.6 |
2.6 |
2.3 |
2.4 |
5.7 |
Källa: World Sea Temperatures