Atlantic water temperature

Atlantic, Fire Island / Ocean Beach · Sea/Coast

The current water temperature at Atlantic is 17.4 °C (as of October 16, 2026, source: NOAA NDBC).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

17.4 °C

Measured: October 16, 2026 · continuously updated

💧 Water 17.4° · ☀️ Air 18.4° · high today 21.1°

Temperature trend of recent weeks

Atlantic — Photo: dans362 · CC BY 3.0 · Wikimedia Commons

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 779 data points since August 17, 2026.

Lowest recorded value: 15.2 °C on September 26, 2026 · highest value: 25.5 °C on August 29, 2026.

In October, temperatures have ranged between 16.4 °C and 19.5 °C.

The current value is 0.6 °C below the October average of this series.

Nearby waters

Atlantic, Great South Bay · 8.6 km away17.4 °C Connetquot River Distributary, Oakdale, New York · 11.5 km away14.4 °C Sampawams Creek, Babylon, New York · 14.7 km away15.0 °C Carlls River, Babylon, New York · 16.1 km away15.8 °C Nissequogue River, Landing Ave at Smithtown, New York · 24.7 km away13.2 °C

More measuring points: Atlantic

South Port Everglades34.9 °C Trident Pier, Port Canaveral32.9 °C Trout Cove, FL31.3 °C Cannon Bay, FL30.6 °C Taylor River, FL30.3 °C Key West30.1 °C

Frequently asked questions

Can you swim at Atlantic right now?
The current water temperature is 17.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Atlantic?
Currently 17.4 °C (updated continuously).

How warm is at Atlantic in October?
In October, the water temperature recently averaged 18.0 °C.

When is the water warmest at Atlantic?
Across the measurement record, August is on average the warmest month (23.2 °C).

How is the water quality at Atlantic?
The official classification is: excellent.

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