Seasonal ranking
Coldest sea temperature in United States in March
Where the sea is coolest across United States during March, ranked by long-term monthly average water temperature. Coney Island (New York, United States) is the coolest at around 4°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Coney IslandNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 2Rockaway BeachNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 3Jones BeachNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 4Long Beach NYNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 5Robert MosesNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 6Fire IslandNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 7Cooper's BeachNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 8Main Beach East HamptonNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 9Ditch PlainsNew York · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 10Revere BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 11Singing BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 12Good Harbor BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 13Nantasket BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 14Horseneck BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 15Old Silver BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 16Craigville BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 17Mayflower BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 18Nauset BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 19Coast Guard BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 20Marconi BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 21Race PointMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 22South Beach EdgartownMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 23Surfside Beach NantucketMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 24Crane BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
- 25Head of the Meadow BeachMassachusetts · United States · Atlantic OceanCold — wetsuit strongly recommended4°CMarch average
Coldest sea in March elsewhere
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United States in March — frequently asked questions
- Where is the sea coldest in United States in March?
- Coney Island in United States has the coldest sea in United States in March, averaging about 4.0 °C. Rockaway Beach (4.0 °C) and Jones Beach are the next coolest.
- How many beaches in United States are warm enough to swim in March?
- None of the top 25 ranked beaches in United States reach 22 °C in March, so a wetsuit is recommended for anything longer than a quick dip.
- How are these March sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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