Onjuku Surf Forecast and Surf Report

Alright, Rusty here. Let’s talk about what’s coming up for the next couple of weeks.

First off, we’ve got a bit of a flat spell to sit through. The immediate weekend is a write-off – Saturday and Sunday are looking pretty ordinary with messy cross-onshore winds and a large, long-period groundswell that’s just going to be lumpy and hard to manage. The combined energy is big, around 2691, but with the wind tearing it up, it’s not worth paddling out for. Wait it out.

The first real window of opportunity hits Monday morning, July 13th. Onjuku wakes up to a clean 3ft swell from the SSW, with a light offshore breeze from the north. The water is sitting at about 75°, which is just a touch cooler than average for this time of year, but nothing to worry about. That morning session will be the pick of the week – small but fun, with the wind dropping off to glassy by the afternoon. The swell period is a solid 13 seconds, so there’s some decent shape to the waves, but it’s inconsistent, so be patient.

After that, things taper off quickly. Through Tuesday and into the following week, the swell drops below 3ft and the wind turns onshore or cross-onshore again. The combined energy dips into the low hundreds, just weak background slop. It’s a long dry spell from Tuesday afternoon right through to the middle of the following week.

The next interesting pulse shows up on Tuesday, July 21st. The morning has a clean 4ft swell from the east with a cross-offshore breeze, but the combined energy is only moderate (293). It’s a marginal call, but the afternoon gets more interesting when a long-period 18-second groundswell from the SE rolls in, pushing the energy up to 675. This is a promising but less certain long-range signal – the swell direction is a good match for the spot, and the wind is clean. It’s not huge, but it could set up some nice lines.

The standout stretch, though, is looking like Wednesday, July 22nd, through Thursday, July 23rd. On Wednesday morning, we’ve got a solid 7ft swell from the ESE with a 12-second period, and a strong cross-offshore breeze from the NNE. The combined energy is pumping at 1570 – that’s serious wave energy. This is expert territory at that size, and the long period means it’ll be powerful and potentially walled-up at the beach, so take care. Thursday morning is even better: a 7ft swell from the ESE, a clean 30 km/h offshore wind from the north, and the energy at 1503. The conditions are fresh offshore and clean. This is the best on offer – a true standout for the big-wave crew. The consistency is fair, but the quality will be there.

After that, the swell fades again through the end of the week and into the weekend, with dropping size and strong winds keeping things messy. There’s a little spike on Sunday, July 26th, with a 6ft short-period swell from the ENE, but it’s a short-lived, choppy option with only moderate energy (433). Not worth a special trip.

So, if you’re looking for a wave, lock in Monday morning, July 13th, for clean small waves, and circle Wednesday the 22nd and Thursday the 23rd for the big, clean, powerful stuff. Expect crowds at Onjuku, especially on the better days.

Rusty.

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