Nanakuli Blackrocks Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at the stretch ahead for Nanakuli Blackrocks.

Right from the get-go, it’s a slow start. We’ve got a run of days here that are tough to get excited about. From Friday the 31st of July all the way through to the morning of Saturday the 8th of August, the surf is mostly ordinary, poor, or just flat. The opening afternoon offers a tiny 2ft SW swell with a long 15-second period and a fresh offshore ENE breeze at 19 mph, but the energy is weak (336) and the call is marginal. Honestly, it’s a scratch session at best. The water temp is sitting at 80°, about average for this time of year, so that’s one small comfort.

We then hit a long dry spell. Saturday the 1st through to Friday the 7th of August is a real slog with waves barely reaching 2ft and energy readings often under 200. There are a couple of glassy windows on Tuesday the 4th and Wednesday the 5th, but with swell heights around 1ft, you’d be bobbing around on ankle-biters. It’s just not doing anything.

Things finally start picking up properly on the morning of Saturday the 8th of August. The swell bumps to 2ft from the SW with a long 18-second period, and while it’s moderate offshore ENE wind at 12 mph, the combined energy climbs to 287. The call is for good surf conditions. It’s still small, but the quality is coming together.

The standout of the entire outlook lands on Monday the 10th of August. By the afternoon, we’ve got a clean 3ft SSW swell with a 15-second period, a gentle offshore breeze from the ENE at 9 mph, and the combined energy jumps to a solid 558. This is very good surf. The wind is offshore and clean, the swell direction is lining up with the optimum (SSW, matching the break’s preferred WSW), and the consistency should start to feel real. For Nanakuli Blackrocks, which rarely breaks, this is the one to circle on the calendar. Tuesday the 11th morning holds similar quality with 3ft SSW, moderate offshore wind, and the same energy reading (558). Very good again.

Through the second week, the energy stays high, often in the 400 to 600+ range, with waves holding around 3ft to 4ft. The morning of Friday the 14th of August shows 3ft from the WNW, with very good conditions and moderate offshore wind. And by Saturday the 15th, we see the biggest swell of the run at 4ft from the west, but it’s paired with a fresh breeze (22 mph) and a marginal call. That one’s a bit more for the experienced crew to consider.

Overall, the first week is a write-off, but the second week really delivers. The clear standout is Monday the 10th of August through the morning of the 11th – best swell, best conditions, and that rare spot finally waking up. Get on it.

Rusty.

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