Onjuku Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s check out what’s cooking for Onjuku over the next couple of weeks.

Honestly, the first few days are a total bust. Monday the 27th and Tuesday the 28th have tiny, weak swell and messy winds. The wave energy is a pathetic 130 to 177, and the wind is just cross-off junk. Not worth wetting a wetsuit. That carries through Wednesday and Thursday – small, short-period stuff, mostly under 3 feet, and the energy is dropping. You’re looking at a gap of nearly a week with nothing to ride.

Then, things get interesting. Sunday the 2nd of August morning, a new swell shows up from the SE at 3 feet, but with a period of 14 seconds. That’s a proper groundswell. The combined energy hits 319, which is solid moderate. The wind is cross-off from the NNE at 12 mph, keeping the surface clean. The forecast says it’s marginal. It’s getting there, but not quite firing.

The real standout is Monday the 3rd of August morning. The swell is building from the SE at 6 feet, with a very long 15-second period. The energy is strong at 1664. The wind is a clean cross-off from the NE at 12 mph. This is starting to look like the real deal. The swell direction is right out of the SSE optimum for Onjuku, so it’s lining up. Conditions are clean. The water temperature is about average for this time of year. This is a big, long-period groundswell. For a beach break like Onjuku, that long period can make the waves a bit too lined up, but with the right sandbank, it could be amazing.

Tuesday the 4th holds similar size, around 8 feet from the ESE, still with a very long 16-second period, and the energy is up to 3007. The wind stays cross-off from the NE. This is big, powerful, and clean. It’s getting into expert territory as it pushes past 8 feet. Beginners, stay on the beach.

Wednesday the 5th is the peak. Swell heights of 10 feet to 12 feet from the ESE, with a period of 17 seconds. The energy is a massive 5209 to 7019. The wind is cross-off and clean. The file says it’s too big for this break, and at 12 feet with that period, it’s going to be a monster. Only the most experienced crew should even think about it. The surface will be glassy between sets, though.

The swell eases into the 6th, 7th, and 8th, but it’s still big. By Saturday the 8th morning, it’s dropped to 4 feet from the ESE, with a 12-second period and a clean cross-off wind. The energy is 605, which is moderate. The forecast says “expect very good surf conditions,” and with that drop in size and the clean wind, this could be the best window for a fun, manageable session.

The 9th and 10th stay in the 4 feet to 6 feet range, with period dropping to 12-14 seconds. The wind shifts onshore or cross-shore, so the quality drops. By Tuesday the 11th, we get a morning window with 6 feet from the ESE, a 13-second period, and a clean cross-off wind from the NE. The energy is 955, and it’s forecast for “very good surf conditions.” A nice clean-up swell to finish the run.

So, the best bet: Monday the 3rd of August for the start of the pulse, and Saturday the 8th of August for the clean, manageable size. If you’re an expert, the 5th and 6th are going to be wild, but be ready for a beast. Onjuku doesn’t always fire, but when it lays down a clean, long-period SE swell with cross-off winds, you’ve got to be on it.

Rusty.

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