48°F is very cold water
Dry suit or a thick wetsuit, gloves and hood.
Sea temperature drives everything from what fish are biting to how long you can safely stay in. It lags the air by weeks, so a warm day doesn’t mean warm water. Check it before you swim, dive, or head out.
Know before you go
Water temps, tides, and conditions worth knowing for your spots, plus the occasional PATHR update. No spam.
Frequently asked
What is the water temperature at Elfin Cove, Port Althorp right now?+
The latest reading at Elfin Cove, Port Althorp, Alaska is about 48°F, from NOAA station 9452634. Dry suit or a thick wetsuit, gloves and hood.
Is the water warm enough to swim at Elfin Cove, Port Althorp?+
At about 48°F the water is very cold. Dry suit or a thick wetsuit, gloves and hood.
Where does Pathr's water temperature data come from?+
Water temperatures come from NOAA and NDBC sensors. When a spot has no sensor of its own, we use the nearest reporting station. In the Pathr app the temperature shown tracks the station closest to your position on the chart.
You've got the water temp. Now get the whole chart.
Pathr shows this spot live, depth under your keel, wind, tide, and traffic, on one nautical chart.
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