Keaulanas Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what Keaulanas has got cookin’ over the next couple of weeks. It’s a bit of a slow burner, but there’s some real quality tucked in there if you’re patient.

The early part of the window is all about small but super clean surf. Sunday morning (August 9th) kicks things off with a tiny 1.6ft groundswell from the SW, but with a very long 16-second period pushing through. The wind is a gentle offshore from the ENE, so it’s gonna be glassy and tidy. The combined swell energy is weak (226), so don’t expect much push, but for a fun little longboard session, it’s a treat. Water temp is sitting at 80.6°, which is about average for this time of year, so you’re not gonna need a steamer.

We roll into Monday and Tuesday with similar vibes – waist-high swell around 2ft to 2.6ft, still that lovely long-period SSW groundswell, and clean conditions. The energy picks up a notch on Tuesday afternoon to moderate (348), but the winds start to go a bit cross-offshore. Still surfable, but the morning sessions are your best bet for that silky surface.

Now, Wednesday the 12th is where things start to rumble. The swell jumps to 3ft in the morning and hits 3.6ft by the afternoon, coming from the S with an 18-second period. The combined energy spikes hard – strong (804) in the morning, then very strong (1247) in the afternoon. That’s a serious step up in power. Winds stay offshore from the ENE, so it’s going to be lined up and clean. This is the first real standout: Wednesday afternoon is the best you’ll see all week for a proper session. That said, at 3.6ft with that kind of period, it’s still friendly for intermediates.

Thursday the 13th keeps that 4.3ft S swell going, with moderate offshore winds in the morning and a fresh offshore in the arvo. The energy is still strong (885) in the morning. But by Friday the 14th, the swell drops back to 3.6ft, and the period shortens to 14 seconds. The quality is still there – it’s clean and offshore – but it’s lost a bit of that Wednesday magic.

The second week gets a bit messy. From the 16th onward, the swell bounces around 2ft to 3ft, but the wind starts swinging onshore and cross-onshore on the 17th, which is a write-off. Keep an eye on Tuesday morning the 18th though – that’s a gem. It’s glassy, dead calm, with a 2.3ft S swell at 13 seconds. Combined energy is moderate (246). It’ll be small, but those dawny glass-offs are worth the paddle.

The very end of the window, around the 21st and 22nd of August, shows some promise again. A 2.6ft SSW groundswell with glassy conditions on Friday morning and Saturday morning. The energy sits in that moderate range (around 397 to 327), and with the wind flat, it’s going to be super clean. A nice way to bookend the outlook.

Overall, the clear standout is Wednesday afternoon, August 12th. That’s the one with the biggest push of S swell (3.6ft), a long 18-second period, and a clean offshore wind. The energy is proper strong (1247), and the break is consistent. Crowds can show up sometimes here, so if you can sneak out mid-week, you’ll have a good chance at some empty ones.

The second standout is Tuesday morning, August 18th – not for size, but for that rare glassy, zero-wind morning on a consistent break. Sometimes that’s all you need.

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