Seasonal ranking
Coldest sea temperature in Massachusetts in September
Where the sea is coolest across Massachusetts during September, ranked by long-term monthly average water temperature. Revere Beach (Massachusetts, United States) is the coolest at around 18°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Revere BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 2Singing BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 3Good Harbor BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 4Nantasket BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 5Horseneck BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 6Old Silver BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 7Craigville BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 8Mayflower BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 9Nauset BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 10Coast Guard BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 11Marconi BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 12Race PointMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 13South Beach EdgartownMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 14Surfside Beach NantucketMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 15Crane BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 16Head of the Meadow BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 17Kalmus BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 18Old Silver BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 19Menemsha BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 20Aquinnah Public BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 21Salisbury BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
- 22Duxbury BeachMassachusetts · United States · Atlantic OceanMild — fine for a swim, cool at first18°CSeptember average
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Massachusetts in September — frequently asked questions
- Where is the sea coldest in Massachusetts in September?
- Revere Beach in United States has the coldest sea in Massachusetts in September, averaging about 18.0 °C. Singing Beach (18.0 °C) and Good Harbor Beach are the next coolest.
- How many beaches in Massachusetts are warm enough to swim in September?
- None of the top 22 ranked beaches in Massachusetts reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
- How are these September sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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