Surf Break

Lat Long: 42.95° N 70.78° W

Costellos WaveFinder

Issued: 7 am 06 Oct 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
14.9°C
0.8° 

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


Costellos surf forecast from 6 Oct 2026:

  • Best quality surf: Monday 12 Oct, 11PM (local time) - 4.5ft (1.3m), 5s period, NE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 13 Oct, 11AM (local time) - 5ft (1.6m), 7s period, ENE swell with 230 kJ wave energy.
  • Next surfable swell (1★+): Monday 12 Oct, 11PM (local time) - 4.5ft (1.3m), 5s period with NE swell.

Best Forecast Surf Conditions for Costellos this week:

The surf forecast for Costellos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 12) at 11PM. The primary swell is predicted to be 1.3m and 5s period with a secondary swell of 0.2m and 4s. Another secondary swell of 0.1m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Costellos in the next 16 days are 1.6m 7s and forecast to arrive on Tuesday (Oct 13) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Oct 08) at 2AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 12th Oct)4.5ft (1.3m) 5s
Best Surf11PM (Mon 12th Oct)4.5ft (1.3m) 5s
Most Powerful11AM (Tue 13th Oct)5ft (1.6m) 7s

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


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