OCEAN · SEA TEMPERATURE · USA · ATLANTIC
Sea Temperature — Montauk
The sea at Montauk is currently 18°C (64.4°F) — cool, refreshing rather than warm — fine for a swim, chilly on entry.
SEA TEMPERATURE · MONTAUK
Temperature18°C / 64.4°F
FeelsCool
Waves0.8 m / 2.6 ft · Fun
Live from Open-Meteo Marine (CC-BY) for 41.05°, -71.96°.
READING THE SEA…
Is it warm enough to swim at Montauk?
At 18°C the water is cool — refreshing rather than warm — fine for a swim, chilly on entry. Sea temperature lags the seasons, so the warmest water at Montaukusually comes a month or two after the hottest air, and a cold current or a spell of offshore wind can drop it sharply within a day. This is the surface layer; it's cooler a few metres down.
Montauk right now
SEE IT ON THE MAP
See Montauk on the live sea-surface-temperature map.