Seabrook Beach surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 20 Sep, 5AM (local time) - 5.5ft (1.7m), 6s period, S swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 5AM (local time) - 5.5ft (1.7m), 6s period, S swell with 225 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 2AM (local time) - 3ft (0.9m), 5s period with NE swell.
Best Forecast Surf Conditions for Seabrook Beach this week:
The surf forecast for Seabrook Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 2AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.5m and 7s. Another secondary swell of 0.1m and 15s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Seabrook Beach in the next 16 days are 1.7m 6s and forecast to arrive on Sunday (Sep 20) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 20) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 15th Sep) | 3ft (0.9m) 5s |
| Best Surf | 5AM (Sun 20th Sep) | 5.5ft (1.7m) 6s |
| Most Powerful | 5AM (Sun 20th Sep) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Seabrook Beach over the next 16 days.
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Nearest