Mattapoisett Town Beach water temperature

Mattapoisett Town Beach · Sea/Coast

The current water temperature at Mattapoisett Town Beach is 21.5 °C (as of September 20, 2026, source: USGS · Proxy).

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

21.5 °C

Measured: September 20, 2026 · continuously updated

💧 Water 21.5° · ☀️ Air 14.3° · high today 17.5°

Temperature trend of recent weeks

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 164 data points since July 31, 2026.

Lowest recorded value: 0.0 °C on August 3, 2026 · highest value: 25.2 °C on August 21, 2026.

In September, temperatures have ranged between 21.5 °C and 24.3 °C.

The current value is 1.4 °C below the September average of this series.

Nearby waters

Pico Beach · 1.0 km away21.5 °C Mattapoisett Hbr near Neds Point near Mattapoisett, Massachusetts · 1.1 km away21.5 °C Grand Vue Beach · 2.1 km away21.5 °C Sippican Harbor near Marion Golf Club at Marion, Massachusetts · 6.9 km away21.8 °C Atlantic, Stoney Beach · 17.7 km away21.0 °C

Frequently asked questions

Can you swim at Mattapoisett Town Beach right now?
The current water temperature is 21.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Mattapoisett Town Beach?
Currently 21.5 °C (updated continuously).

How warm is at Mattapoisett Town Beach in September?
In September, the water temperature recently averaged 22.9 °C.

How is the water quality at Mattapoisett Town Beach?
The official classification is: excellent.

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