Nanakuli Blackrocks Surf Forecast and Surf Report

Alright, Rusty here, talking in feet and knots for you folks.

Let’s look at Nanakuli Blackrocks. This is a spot that’s *rarely* breaking, so any wave is a win. The water is about 80°, which is dead normal for the season.

The next few days, starting Wednesday the 22nd through the weekend, we’ve got some small, rideable groundswell from the SSW. Wave heights are around 2ft to 3ft. The wind is from the ENE, blowing offshore, keeping the surface glassy clean. The period is long, around 20 seconds, so the waves will have some shape and energy, but at a beach break, long-period swells can run a bit straight. The combined energy is moderate, in the 600s to 800s, so there’s some push.

Thursday the 23rd through Saturday the 25th stays similar, with 2ft to 3ft SSW swell and that same clean offshore wind. The wave comments say “marginal” due to tides, so keep an eye on that. Crowds are “sometimes,” so you might see a few others.

The standout is Sunday morning, July 26th. The swell comes in at 3ft from the SSW, with a 16-second period, and the combined energy is 598. The wind is a moderate offshore breeze, keeping it clean. The wave comment reads “expect very good surf conditions.” That’s your best shot of the whole forecast.

After Sunday, the energy drops. Monday and Tuesday, July 27th and 28th, have 2ft to 3ft SSW swell, but the period drops to 14 seconds, and the combined energy is in the 100s and 200s. The wave comments are “surfable but very ordinary.”

From Wednesday, July 29th, the swell direction shifts to the S and SW, but the size stays small, around 2ft. The wind gets messy – cross-off, cross-on, and some cross-shore chop. The quality goes down.

Friday, July 31st, morning has a glassy calm with 2ft SW swell at 16 seconds. Combined energy is 402, so it’s a possible dawn patrol if you’re local.

Then the surf goes flat. From Saturday, August 1st, through Monday, August 5th, there are several days with no waves or very small, weak surf. The energy readings are 0 or under 200. The wave comments are “poor” or “surfable but very ordinary.” It’s a long gap.

The only light at the end of the tunnel is Wednesday afternoon, August 5th, with 2ft SSW swell at 16 seconds, combined energy 242, and a moderate offshore wind. The comment says “expect good surf conditions.” That’s a long way out, so don’t book your flights yet, but it’s a glimmer.

Bottom line: Sunday morning, July 26th, is the pick. The rest is small, marginal, or completely flat. The spot is a rare break, so you’re gambling on it being on. The waves are small enough for beginners, but the long period might make the paddling easier and the sets more spaced out.

Rusty.

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