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Sea temperature in Poland in December
5°Ccold · monthly average
The sea around Poland averages 5°C in December. Cool — best for confident swimmers or short dips.
Monthly sea temperatures across the year
Best swim months
—
Warmest month
August (19°C)
Coolest month
February (2°C)
Best beaches in Poland
Pomerania
Sopot Beach
Long Tricity beach with Europe's longest wooden pier.
Pomerania
Gdańsk Brzeźno
Wide pine-backed Gdańsk city beach.
Pomerania
Gdynia Orłowo
Cliff-flanked Gdynia bay.
Pomerania
Łeba
Family beach next to Słowiński dunes.
Pomerania
Hel Beach
Tip-of-peninsula Polish family beach.
Pomerania
Międzyzdroje
Wolin-island Polish resort beach.
Pomeranian
Sopot Beach
Polish Baltic sandy beach near Sopot.
Pomeranian
Gdańsk Brzeźno
Polish Baltic sandy beach near Gdańsk.
Pomeranian
Gdańsk Jelitkowo
Polish Baltic sandy beach near Gdańsk.