canIswim

Where is the sea warmest in the Baltic in January?

In January the warmest sea in the Baltic is at Kragerø, Norway, at 5.3°C. Nowhere in the region is comfortable for swimming this month — not one of the 90 cities measured reaches 19.0°C.

#CityCountrySeaSwimming
1 Kragerø Norway 5.3°C Dangerous
2 Rønne Denmark 5.1°C Dangerous
3 Sandefjord Norway 4.8°C Dangerous
4 Tønsberg Norway 4.8°C Dangerous
5 Svetlogorsk Russia 4.8°C Dangerous
6 Zelenogradsk Russia 4.7°C Dangerous
7 Władysławowo Poland 4.7°C Dangerous
8 Århus Denmark 4.6°C Dangerous
9 Horsens Denmark 4.6°C Dangerous
10 Gdynia Poland 4.6°C Dangerous
11 Koszalin Poland 4.6°C Dangerous
12 Reda Poland 4.6°C Dangerous
13 Palanga Lithuania 4.5°C Dangerous
14 Frederikshavn Denmark 4.5°C Dangerous
15 Gdańsk Poland 4.5°C Dangerous
16 Karlskrona Sweden 4.5°C Dangerous
17 Ustka Poland 4.4°C Dangerous
18 Vejle Denmark 4.4°C Dangerous
19 Fredericia Denmark 4.4°C Dangerous
20 Liepāja Latvia 4.4°C Dangerous
21 Darłowo Poland 4.4°C Dangerous
22 Faaborg Denmark 4.4°C Dangerous
23 Oldenburg in Holstein Germany 4.4°C Dangerous
24 Sønderborg Denmark 4.4°C Dangerous
25 Kappeln Germany 4.4°C Dangerous

Ranked on the NOAA OISST monthly climatology — a long-run average for January, not a forecast. A given January will run warmer or cooler than this, and the sea is warmest late in the afternoon and late in the season.

the Baltic in other months

January elsewhere