Nanakuli Blackrocks Surf Break

Lat Long: 21.37° N 158.14° W

Nanakuli Blackrocks WaveFinder

Issued: 1 pm 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nanakuli Blackrocks sea temperature is
26.7° C
0.7° 

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


Nanakuli Blackrocks surf forecast from 8 Jul 2026:

  • Best quality surf: Monday 13 Jul, 8PM (local time) - 3ft (0.9m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 11 Jul, 11PM (local time) - 3ft (0.9m), 18s period, SW swell with 444 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 8PM (local time) - 2ft (0.6m), 12s period with S swell.

Best Forecast Surf Conditions for Nanakuli Blackrocks this week:

The surf forecast for Nanakuli Blackrocks over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 09) at 8PM. The primary swell is predicted to be 0.6m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Nanakuli Blackrocks in the next 16 days are 0.9m 18s and forecast to arrive on Saturday (Jul 11) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Wednesday (Jul 08) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 9th Jul)2ft (0.6m) 12s
Best Surf 8PM (Mon 13th Jul)3ft (0.9m) 14s
Most Powerful11PM (Sat 11th Jul)3ft (0.9m) 18s

Table - best surf conditions forecast for Nanakuli Blackrocks 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