West Harbor at Oyster Bay Nwr at Bayville, New York water temperature

West Harbor at Oyster Bay Nwr at Bayville, New York · Sea/Coast

The current water temperature at West Harbor at Oyster Bay Nwr at Bayville is 24.7 °C (as of August 31, 2026, source: USGS).

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

24.7 °C

Measured: August 31, 2026 · continuously updated

💧 Water 24.7° · ☀️ Air 22.6° · high today 26.5°

Temperature trend of recent weeks

West Harbor at Oyster Bay Nwr at Bayville, New York — Photo: WorldIslandInfo.com · CC BY 2.0 · Wikimedia Commons

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 490 data points since July 3, 2026.

Lowest recorded value: 22.1 °C on July 10, 2026 · highest value: 28.5 °C on August 9, 2026.

Nearby waters

Frost Creek at Sheep Ln Bridge at Lattingtown, New York · 4.2 km away25.2 °C East Creek at Sands Point, New York · 14.6 km away25.5 °C Atlantic, Kings Point · 21.3 km away23.7 °C Norwalk Harbor at the Cove Marina near E Norwalk, Connecticut · 23.4 km away23.9 °C Norwalk River at Maritime Aquarium near S Norwalk, Connecticut · 24.5 km away24.2 °C

Frequently asked questions

Can you swim at West Harbor at Oyster Bay Nwr at Bayville right now?
The current water temperature is 24.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at West Harbor at Oyster Bay Nwr at Bayville?
Currently 24.7 °C (updated continuously).

How is the water quality at West Harbor at Oyster Bay Nwr at Bayville?
The official classification is: excellent.

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