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Sea temperature in Croatia in December
14°Ccool · monthly average
The sea around Croatia averages 14°C in December. Cool — best for confident swimmers or short dips.
Monthly sea temperatures across the year
Best swim months
Jun, Jul, Aug, Sep
Warmest month
August (26°C)
Coolest month
February (12°C)
Best beaches in Croatia
Istria
Bijeca Beach
Rare Istrian sandy beach with shallow water.
Istria
Hawaii Beach
Sheltered pine-backed Istrian swim bay.
Istria
Ambrela
Pebble-and-rock family beach near Pula.
Istria
Belvedere
Naturist rocky-cliff swimming spot.
Istria
Lone Bay
Forest-rimmed pebble Rovinj bay.
Kvarner
Sveti Ivan
Steep-descent pebble cove on Cres island.
Kvarner
Crikvenica Beach
Long-promenade Kvarner family beach.
Kvarner
Rajska Plaža
Famed shallow sandy Rab island beach.
Kvarner
Kandarola
Royal naturist cove with crystal water.