Onjuku Surf Forecast and Surf Report

Alright, this is Rusty, comin' at ya from right here, looking at the charts for Onjuku. Let’s see what Mother Nature has got cooking over the next couple of weeks.

Honestly, the next few days are a bit of a write-off for quality surf. The wind is just not playing ball, with a persistent onshore flow messing up what little swell we have. The combined swell energy is weak, bouncing around 218 to 327, and it’s all just poor surf conditions with a cross-onshore chop. You’d be fighting a losing battle out there. For the first few days, it’s a real scratchy affair, so I’d give it a miss.

We finally get a glimmer of hope on Monday, August 24th. The morning is looking glassy, with a slight air and the water is feeling pretty normal for this time of year at 81°. A long-period groundswell from the SSE is pushing through, with a period of 18 seconds and a solid 4ft of height. The combined energy is strong (1140). Because it’s such a long period, the sets will be clean and packed with punch, but it might close out a bit at this beach unless you find a bank. This is one for the experienced crew only, as the swell is pushing past 5ft and it’s an inconsistent break to begin with. After that morning window, the afternoon gets slammed by a cross-onshore wind and a jumpy 7ft wave, so catch it early or not at all.

The following week has a few cleaner windows, but the swell is small. Friday, August 28th and Friday, August 29th have some light cross-offshore winds, but the swell is a tiny 2ft to 3ft. It’s clean, but weak. Look for a high tide bank to make the most of it.

The real standout, and the one circling on my calendar, is much later in the forecast. Keep an eye on Saturday, September 5th. The morning is looking clear with a strong 10ft swell from the ESE. That’s a lot of water and the combined swell energy is a massive 1598. The wind is a gentle cross-offshore from the ENE, which will keep it clean. At 10ft, this is big and powerful, strictly for experts only on the biggest, cleanest sets. It’s a long way out, so treat it as a promising possibility, but if it holds, it will be the best on offer.

Then, Sunday, September 6th morning keeps the energy going with an 8ft swell from the SE (2898 combined energy) and a 14-second period. The breeze is a moderate cross-offshore from the ENE, so conditions should be good for a solid, heavy session.

So, to wrap it up: the first few days are a no-go. Monday, August 24th morning is the first real window for experienced surfers. But the big dogs should keep their eyes on that Saturday, September 5th morning for the true swell of the period. It’s got power, size, and the right wind.

Stay safe and read the conditions before you paddle out.

Rusty.

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