← Ireland
Sea temperature in Ireland in January
10°Ccool · monthly average
The sea around Ireland averages 10°C in January. Cool — best for confident swimmers or short dips.
Monthly sea temperatures across the year
Best swim months
—
Warmest month
August (16°C)
Coolest month
February (9°C)
Best beaches in Ireland
West Coast
Inchydoney
Long west-Cork blue-flag beach.
West Coast
Derrynane
Sheltered Ring of Kerry strand.
West Coast
Inch Beach
Five-km Dingle peninsula surf beach.
West Coast
Fanore
Burren-foot Atlantic beach.
West Coast
Keem Bay
Cliff-cradled Mayo cove.
West Coast
Dog's Bay
White-shell-sand Connemara bay.
West Coast
Streedagh
Three-km Sligo strand.
East Coast
Brittas Bay
Three-km dune-backed Wicklow beach.
East Coast
Curracloe
Famed nine-km Wexford beach.