Aoshima Harbour Surf Forecast and Surf Report

Alright, this is Rusty, and I’m gonna give you the straight-up local picture for Aoshima Harbour. Let’s get to it.

We’re starting off with a quiet stretch, I’m not gonna lie. The first few days are a write-off. Friday the 31st of July through Saturday the 1st of August, you’re looking at tiny, weak 1ft swell from the ESE with a short 9-second period. The energy is barely there (30 to 38). It’s just poor surf. Even with the glassy morning on Friday and the clean morning on Saturday, there’s nothing to ride. The first real chance of anything decent doesn’t show up until Sunday the 2nd of August.

So, Sunday morning the 2nd of August is our first real standout. The wind is glassy, from the NNW, and the swell has been building to a clean 2ft from the ESE. The period jumps to a very long 16 seconds. That’s a proper groundswell. The combined energy hits 255, which is moderate. This is a point break, reef, or river kind of wave with that long period, and Aoshima Harbour is a beach/jetty setup, so that long period might make it a bit straight, but with those glassy conditions, it’s still a really nice, clean, and playful option. The water temperature is about average for the time of year, nothing to write home about. Sunday afternoon gets a bit chopped up as the wind comes onshore, so get it in the morning.

Monday the 3rd of August, the swell is starting to get bigger, 5ft to 6ft from the ESE, with a very long period of 16 to 17 seconds. The energy is strong (1220 to 2053). But the wind is onshore from the NE, so it’s going to be choppy and messy. It’s a marginal call at best, and that size is pushing it for a beginner. This is more of a kite surfing setup right now with the cross-onshore wind and the building swell.

Then things get wild. From Tuesday the 4th of August through to Saturday the 8th of August, the swell goes absolutely bonkers. We’re talking 8ft up to a massive 30ft from the ESE/SE. The period is very long (15 to 19 seconds), and the energy is insane (4525 to 89989). The wind is ripping onshore from the NE and E, with storm risks. The forecast says the wind and tide are favorable, but the swell is predicted to be too big for this break. This is strictly for experts only, and honestly, even for them, it’s going to be a dangerous, closed-out mess. The beach/jetty setup is just going to be a washing machine. Surfing is out, but if you’re into kite surfing in extreme conditions, this is your window.

After that, the swell settles down. From Sunday the 9th of August onward, we’re back to smaller, messy conditions. The swell drops from 6ft down to 3ft, with periods ranging from 11 to 14 seconds. The energy is moderate to strong (up to 2056 early on, then fading to 386). The wind stays onshore from the E and ENE, so the surf quality is poor, with a lot of lumpy, choppy, or unknown states. There are a few marginal mornings (like Tuesday the 11th and Wednesday the 12th of August) with cross-off or cross-shore winds and a bit of a clean-up, but the swell is weak and unstable. Nothing here is going to get my heart pumping.

So, to sum it up: the best bet by far is the glassy morning of Sunday the 2nd of August. That’s the one. After that, it’s a long gap of too-big, stormy junk, followed by a week of small, onshore slop. The second week doesn’t have any standouts, just a few marginal, low-quality windows that are a long shot.

Rusty, signing out.

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