Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach WaveFinder

Issued: 1 pm 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
20.0° C
1.7° 

Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nantasket Beach surf forecast from 7 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 11AM (local time) - 4ft (1.2m), 8s period, E swell with glassy winds.
  • Most powerful swell: Wednesday 8 Jul, 5AM (local time) - 5.5ft (1.7m), 8s period, ENE swell with 336 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 11AM (local time) - 4ft (1.2m), 8s period with E swell.

Best Forecast Surf Conditions for Nantasket Beach this week:

The surf forecast for Nantasket Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 08) at 11AM. The primary swell is predicted to be 1.2m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nantasket Beach in the next 16 days are 1.7m 8s and forecast to arrive on Wednesday (Jul 08) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 09) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 8th Jul)4ft (1.2m) 8s
Best Surf11AM (Wed 8th Jul)4ft (1.2m) 8s
Most Powerful 5AM (Wed 8th Jul)5.5ft (1.7m) 8s

Table - best surf conditions forecast for Nantasket Beach over the next 16 days.


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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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