Onjuku Surf Forecast and Surf Report

Alright, Rusty here. Let's cut through the data and look at what we've actually got on offer for Onjuku over the next couple of weeks. To be straight with you, it's a bit of a mixed bag and we've got to sit through some pretty average conditions before we see much worth getting wet for. The water's sitting at a touch warmer than normal for this time of year, around 82.2°, so at least the tropical feels will be there while you wait.

The first few days are pretty grim. Saturday the 5th has pathetic, weak little 1.3 ft swells with hardly any energy to speak of (67), and a cross-offshore breeze doesn't save it from being poor. Sunday the 6th jumps up in size, but that's a messy, short-period windswell at 6.2 ft from the east. By Monday the 7th, things get downright nasty with a strong 11.5 ft to 13.1 ft southerly swell and strong onshore winds. That's a real stormy mess, honestly, that combined wave energy (1935 and then 3327) just tells you it's all power and no form. That's expert-only territory, and even then, the conditions are cooked.

The middle of the week from the 8th to the 10th stays marginal. We see decent size, 6.6 ft to 7.5 ft, but it's still onshore or cross-onshore and the energy is moderate to strong. It's lumpy and choppy, and certainly not a recommendation for a fun session.

Now, here's where we get a real standout window. Friday the 11th of September is the day to circle. The morning brings a clean 4.9 ft swell from the ENE with a solid offshore wind from the NNE. It's moderate and clean, and the forecast is calling for good surf conditions. Then the afternoon gets even better. The swell drops slightly to 4.6 ft from the NE, but the wind goes clean offshore from the NNW. The forecast actually expects good surf conditions, and this is the best call of the whole run. The energy is moderate (370 and 292), the wind is offshore, and it's clean. This is our pick. Just be aware that Onjuku can be inconsistent and the crowds are sometimes a factor, so get in early.

After that little burst, the following week drops right off. From the 12th of September through to the end of the window on the 20th, it's a long stretch of small, weak surf. Most days are seeing 2.0 ft to 3.6 ft, often from the east with cross-offshore breezes, but the energy is low (often under 500). There's a little spike on the 16th with a 12-second period groundswell and some clean conditions in the morning, but at 2.0 ft, it's barely a ripple. The long period groundswell shows up on the 15th and 16th (13 to 14 seconds), but it's not got the size to really light up Onjuku's beach break. It’s a quiet, flatish run to end the forecast. If you're a local, you know it tends not to stay this poor for long.

Summing it up: The only true standout is the clean, offshore conditions and fun-sized swell on Friday the 11th. Get on it.

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