Kua Bay Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s take a look at what’s on the menu for Kua Bay over the next couple of weeks.

Right off the bat, I gotta be straight with you. For the first week and a half, we’re looking at a real flat spell. The surf is tiny, often under 2ft, and the energy is weak (as low as 9 to 58). It’s a stretch of poor surf conditions with a lot of cross and cross-onshore wind. The water temp is sitting at 81°, which is about average for the time of year, so no surprises there.

The first real glimmer of hope shows up on the afternoon of Sunday, August 9th. The swell bumps up to a measly 1ft from the WNW with a long period of 15 seconds, and the wind goes glassy. The energy is still weak (78) and the conditions are described as very ordinary, but it’s the first glassy moment we’ve had. Not a standout, but a sign of life.

The next day, Monday the 10th, the energy starts to climb into the moderate range (112 to 113) with a 2ft, 15-second WNW swell. Again, glassy wind in the afternoon gives you a chance at a clean, if small, wave. By Tuesday the 11th, we get a clean cross-off wind in the morning with the same 2ft, 15-second WNW swell, and the energy is at 112. It’s surfable, but still very ordinary.

Things start to get interesting around Thursday, August 13th. The swell height moves to 2ft from the west, with a 16-second period. The energy jumps to 279. It’s still considered marginal, but you can feel the ocean waking up. The wind is light and cross to cross-on, so it’s not perfect, but there’s more push.

Now, here’s where you want to circle the date. Friday, August 14th, afternoon is the standout. The swell is 3ft from the WNW, with a long 16-second period, and the wind goes glassy. The combined energy hits 400. This is the first time we see “expect good surf conditions” in the forecast. The water is calm, the waves are clean, and Kua Bay (Big Island) is set to offer some proper, shapely waves. The long period means it’s a groundswell, which will break nicely here, just be patient for the sets.

The next morning, Saturday the 15th, the swell holds at 3ft from the west, 15 seconds, with energy at 441, but the wind is onshore. The afternoon saves it with a clean cross-off from the SSW. That’s another solid session, almost as good as Friday.

We wrap up the forecast on Sunday the 16th with the swell still at 3ft from the west, 14 seconds, and energy at 411, but the wind is a mix of cross-on and cross-shore, making it marginal again.

So, the real takeaway: the first week is a washout. Don’t bother. The window opens on the afternoon of the 14th and runs through the 15th. Friday afternoon is the best of the best, with glassy conditions and a solid, long-period WNW swell. If you’re a beginner, 3ft is fine. The crowd profile says “sometimes,” so you might have some company, but nothing too crazy.

Keep your eyes on the sky, and I’ll see you out there.

Rusty

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