Onjuku Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s coming up for Onjuku. It’s a bit of a slow start, but there’s some serious promise way down the line.

For the first few days, we’re stuck in a bit of a slump. The swell is small and weak, mostly around 3ft from the east, and the wind is a persistent cross-onshore, leaving things choppy and messy. There’s nothing really worth paddling out for from Monday the 20th through Tuesday the 21st. The combined energy is low, sitting around 171 to 289 (moderate wave energy), but the surf quality is just poor.

We get a little window on Wednesday the 22nd morning. The wind goes glassy, dead calm, and the swell is a clean 3.3ft from the east, with a period of 10 seconds. The combined energy is 228 (moderate wave energy). It’s small, but it will be clean. For a beginner or someone on a longboard, this could be a nice, gentle session. The rest of that day and Thursday the 23rd are just ordinary.

Friday the 24th morning is another glassy, tiny day with only 2ft on offer. The energy is down to 83 (weak wave energy), so it’s barely moving. The next few days, the swell drops even further, bottoming out at 1.3ft on the 25th, with that long 16-second period from the southeast. That long period at a beach break like Onjuku can be a bit tricky – it might break too straight and be hard to catch.

Now, hold on to your leash, because things start to get interesting around the 27th. On Monday the 27th morning, we get a clean, gentle offshore wind from the NNE, and a small but clean 1.6ft swell from the south, with a 12-second period. The energy is building to 245 (moderate wave energy). The afternoon gets even better, with 3ft from the south and a combined energy of 398 (moderate wave energy). It’s still clean.

The standout is shaping up for Tuesday the 28th morning. That’s the one to circle on the calendar. A clean, light offshore wind from the NNE, and the swell jumps to 4.6ft from the south, with a 13-second period. The combined energy is a solid 794 (strong wave energy). This is going to be the best quality surf of the whole window. The sets will have some punch, and the offshore wind will keep the faces clean. It’s an intermediate-level wave at that size, and since it’s inconsistent, you’ll have to be patient, but the wait will be worth it. The afternoon has a bit of onshore wind, so the morning is the call.

Wednesday the 29th morning is also very good, with 5ft from the south, a 13-second period, and a light cross-offshore wind from the NE. The energy is 893 (strong wave energy). That’s a solid, powerful wave, but it’s getting up there in size. At 5ft, it’s starting to push into the territory where beginners might find it a bit much. It’s still clean, though.

After that, the wind turns ugly again on the 30th and 31st, with strong cross-onshore winds and messy conditions. The swell drops back down, and the quality vanishes.

Looking way ahead, there’s a big, long-period southeast swell forecast for the first few days of August. On Monday the 3rd of August, we’re looking at 5ft to 6ft from the ESE, with a period of 16 seconds, and the energy is a massive 1584 to 2287 (very strong wave energy). That is a serious groundswell. Then on Tuesday the 4th of August, the model shows 8ft from the ESE with an 18-second period, and the combined energy hits 4868 (very strong wave energy). That is a huge, powerful swell. At that size, it’s for experts only, and with that very long period, it’s going to be a proper ledge at the right bank. The wind is forecast to be light onshore, so the conditions are questionable, but the raw power is undeniable. This is a long-range call, so it’s promising but not set in stone. Keep an eye on it.

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