Costellos Surf Break

Lat Long: 42.95° N 70.78° W

Costellos WaveFinder

Issued: 1 am 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Costellos sea temperature is
19.0°C
0.1° 

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


Costellos surf forecast from 22 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 8AM (local time) - 2.5ft (0.7m), 6s period, E swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 5AM (local time) - 3ft (0.9m), 8s period, SE swell with 95 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 2.5ft (0.7m), 6s period with E 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 Sunday (Aug 23) at 8AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.2m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Costellos in the next 16 days are 0.9m 8s and forecast to arrive on Saturday (Aug 29) 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 Tuesday (Aug 25) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 23rd Aug)2.5ft (0.7m) 6s
Best Surf 8AM (Sun 23rd Aug)2.5ft (0.7m) 6s
Most Powerful 5AM (Sat 29th Aug)3ft (0.9m) 8s

Table - best surf conditions forecast for Costellos 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)
Map placeholder
How to use the Wavefinder 
Nearest locationNearest