Onemana Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get into it.

The next 16 days at Onemana are a bit of a mixed bag, with a long flat spell to start. The first real chance of a wave doesn’t show up until Sunday afternoon, the 9th of August. The water is sitting at 58°, which is about normal for this time of year, nothing unusual there.

The first few days are a total bust. From Friday the 7th right through to Sunday morning, we’re looking at tiny, poor surf. You’d be wasting your time. Then Sunday afternoon, the 9th, things finally wake up. We get a quick spike of 5ft swell from the NNW, but it’s short-period stuff at 6 seconds and the combined energy is moderate (282). The wind is light and cross-off, so it’ll be clean, but the quality is only ordinary. It’s a beach break setup, so that short period won’t help the shape much.

Monday the 10th drops back to around 3ft from the north, with moderate energy (125). The wind is offshore and light, so it’s rideable, but it’s very ordinary. Tuesday morning the 11th is glassy with 2ft, but again, nothing special.

The next real standout is looking like Friday the 14th of August. We’ve got a solid 12ft swell from the NNE, with a period of 10 seconds and a massive combined energy of 4589. That’s a lot of power. But here’s the thing – the swell is predicted to be too big for this break. This is expert-only territory, and even then, it’s marginal. The wind is cross-shore and moderate, so it’ll be a bit choppy. Honestly, with that size and power on a beach setup, this might be more interesting for the kite surfers than paddle surfers.

The best window for a decent, clean paddle session is likely Saturday the 15th of August. The swell drops to 7ft from the NE, with a period of 9 seconds and strong energy (992). The wind is cross-off and moderate, keeping it clean. It’s still big, but more manageable for strong intermediates. The consistency is fairly consistent, so you’ll get waves. Crowds are possible here, so get in early.

After that, it’s a slow fade. Sunday the 16th offers 3ft and clean, but it’s back to ordinary. From Monday the 17th onward, through the 22nd of August, it’s more poor surf with tiny swells and no real energy. The combined energy drops to 10 or 11, which is very weak. Honestly, it’s a long blank run at the end.

So, bottom line: If you’re an expert, you might want to have a look at Friday the 14th, but be warned it’s likely too big. For the rest of us, Sunday the 9th is a glimmer, and Saturday the 15th is your best bet for a clean, solid session. Get it while you can.

Rusty.

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