Aoshima Surf Forecast and Surf Report

Alright, Rusty here. Let's have a look at what Aoshima's got cookin' over the next couple of weeks.

Right off the bat, it's a mixed bag. We've got some solid swell pulses coming through, but the wind is gonna be the real story here. For the first week, the onshore junk is going to spoil a lot of the fun, but there are a few windows where it cleans up nicely.

Saturday morning kicks things off with a small but workable 4ft swell from the SSE. The wind is a light cross-off, so it's clean, but the energy is weak (237) and the period is short at 7 seconds. It's not a standout, but it's a start. Surfable, but you won't be writing home about it.

The real problem is from Saturday afternoon right through to the end of the first week. The wind swings onshore and stays there. We see a big jump in size – Wednesday morning (September 2nd) has a 7ft SE swell, and by Thursday morning (September 3rd) it’s a chunky 15ft from the SE. The energy reading hits 9,552, so there's plenty of water moving, but with a moderate cross-onshore wind, it’s going to be a choppy, blown-out mess. That’s not paddle-surfing weather; that looks more like a kite-surfing setup if you ask me. That big swell is well over 8ft, so only for experts anyway, but the wind ruins it.

Things start to turn around on Friday morning, September 4th. The swell drops back to a more manageable 7ft from the SE, and crucially, the wind swings to a light cross-off. It’s clean again. The energy is still decent (985), and the period is 9 seconds. This is a good solid session for someone who wants some power, but with that size, it’s still best for intermediate to experienced surfers.

The standout of the whole outlook is Wednesday morning, September 9th. The swell is a solid 7ft from the ESE, with a 10-second period. That’s a nice, powerful groundswell. And here’s the kicker: the wind is glass. Absolutely dead calm. The water temp is sitting at 84°, which is bang on average for the time of year. This will be clean, with good power, and at Aoshima, a reef break, that long period swell will wrap in nicely. It’s a bit too big for beginners, but for everyone else, this looks like the pick of the fortnight.

After that, there are some other clean mornings. Thursday morning (September 10th) has a 6ft ESE swell with light SSW cross-off winds. A nice, clean option. Saturday morning (September 12th) has a 5ft E swell with offshore SW winds, clean but a little shorter period at 7 seconds. Still fun.

Looking into the second week, Sunday morning (September 13th) has a big 12ft swell from the ESE again, with a very long 12-second period. The wind is a light cross-on, so it might be bumpy on the face, but the swell energy is massive (3,874). It’s a powerful, clean-ish option for the experts, but don't expect perfection.

So, to sum it up: there's surf on and off for the whole 16 days, but the wind is the gatekeeper. The first few days and the middle of the first week are wasted by onshore winds, despite some big swell. The absolute best bet is that glassy Wednesday morning, September 9th. Keep an eye on that Friday (September 4th) and Thursday (September 10th) mornings too for clean, punchy waves.

Rusty out.

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