Atlantic water temperature

Atlantic, Cape Cod / Nauset Beach · Sea/Coast

The current water temperature at Atlantic is 20.3 °C (as of September 1, 2026, source: Open-Meteo marine model).

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

20.3 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.3° · ☀️ Air 19.0° · high today 20.2°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 592 data points since July 3, 2026.

Lowest recorded value: 15.3 °C on August 4, 2026 · highest value: 24.3 °C on August 18, 2026.

Nearby waters

Atlantic, Cape Cod Bay, MA (221) · 32.7 km away20.7 °C Atlantic, NANTUCKET SOUND · 45.0 km away23.4 °C Atlantic, Cape Cod · 47.4 km away20.7 °C Atlantic, Nantucket Island, MA · 59.6 km away24.2 °C Atlantic, Nantucket Island · 59.7 km away24.1 °C

More measuring points: Atlantic

South Port Everglades39.3 °C Trout Cove, FL33.4 °C Johnson Key, FL33.1 °C Middle Key, FL32.9 °C Taylor River, FL32.8 °C Bob Allen, FL32.6 °C

Frequently asked questions

Can you swim at Atlantic right now?
The current water temperature is 20.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Atlantic?
Currently 20.3 °C (updated continuously).

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