Swimming at Nantucket Beach today
Nantucket, Massachusetts
Updated 7:03 AM EDT
What decides a swimming score
Before you swim
Swim near a staffed lifeguard tower, and check the National Weather Service surf-zone forecast for the official rip-current outlook — we report conditions, we don't forecast rip currents.
Better nearby for swimming
Nantucket Beach is also scored for
About Nantucket Beach
Nantucket Beach sits on the Massachusetts coast, where the water runs from about 39°F in February to 69°F in August.
The water here never averages above 70°F — even in August, the warmest month, it sits around 69°F. Most people wear a wetsuit.
Today it is 70°F. That is 1° above the August average of 69°F here.
Tide predictions come from NOAA station Nantucket about 8.3 km away on the open coast.
Frequently asked questions
Is Nantucket Beach good for swimming today?
Swimmable, with care — we score it 76 out of 100 today. The limiting factor is surf calmness at 2.8 ft.
What makes a good swimming day?
We weight water temperature (40%), surf calmness (25%), uv exposure (15%) and combine them into one score. Conditions we cannot read are left out rather than guessed.
When is the best time of year to swim at Nantucket Beach?
The water here never averages above 70°F — even in August, the warmest month, it sits around 69°F. Most people wear a wetsuit.