Aoshima Harbour Surf Forecast and Surf Report

Alright, Rusty here again. Let’s run through it in feet and miles.

The 16-day window starts off pretty quiet. The first few days are a bit of a letdown, with tiny swell and very ordinary conditions. Then things get interesting, but you’ve got to be patient for the standouts. From around the 7th of July onward, the energy starts to build, but the first real highlight is a bit of a narrow window.

Let’s talk about the anchor spot. Aoshima Harbour kicks things off with a tiny 2 ft ESE swell on Friday morning the 3rd of July. The water’s 77°, which is a bit colder than normal for this time of year. It’s glassy with light NNW wind, but the energy is weak (59 combined). It’s just surfable, nothing to get excited about. The next days remain disappointing until Tuesday morning the 7th of July. That’s when a 4 ft ESE groundswell, with a very long period of 17 seconds, rolls in. The wind is calm and glassy. The combined energy jumps to 897 (moderate wave energy). This is a serious contender for the best of the week. The long period will make for clean, well-shaped waves, but at this beach/jetty setup, that long period can make it break a little too straight. Still, it’s clean, so it’s worth a paddle.

But the real standout is Thursday afternoon, the 16th of July. The swell is a solid 6 ft from the ESE, with a 16-second period and light offshore wind from the WSW. The combined energy reads 1756 (moderate to strong). This is excellent surf conditions for experienced surfers. Clean, offshore lines, plenty of push, and with the wind holding offshore, it should be a rippable afternoon. This is your winner, hands down.

As we get into mid-July, the swell gets too big for this spot. By the morning of the 8th of July, we’re seeing 10 ft SE swell with 18-second periods, and energy readings over 5000 (strong). That’s expert-only territory, and the model says it’s too big for the break. It stays huge through the 10th, with 13 ft waves and energy over 8400. Unless you’re charging, stay on the beach.

After the 16th, the swell drops again, but the 18th of July still has some manageable 8 ft waves, though the wind turns cross-shore and the energy is still high at 1873. That one is more marginal.

So to sum it up: Tuesday morning the 7th is your early call for clean, glassy conditions with moderate swell. But if you want the best, mark your calendar for Thursday afternoon the 16th of July. That’s the session you don’t want to miss. Clean, solid, and offshore.

- Rusty

Read more