Aoshima Harbour Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s on offer for Aoshima Harbour over the next couple of weeks.

Straight up, this is a bit of a slow burner. We’re looking at a run of smaller, choppy, or onshore days to start, so don’t expect much in the way of quality for the first week. The water is sitting at 84°, which is pretty much bang on average for this time of year – nothing weird going on there.

The first real standout is shaping up for Thursday, August 20th. Overnight, a new pulse of swell pushes in, and we’re looking at 7 ft from the SSE early morning. The wind is dead glassy, and the wave energy is pumping with a strong 932 (moderate energy) reading. For a beach/jetty setup, that’s a solid window of clean, powerful surf. The period is a short 8 seconds, so it’s windswell, but when it’s that clean and that size, you don’t argue. This is the pick of the entire forecast. Later that afternoon, the wind picks up from the SSE at 12 mph, turning it cross-shore and messy, so get in early.

The following morning, Friday, August 21st, still has some decent leftovers. Expect 5 ft from the SSE early, with a light cross-offshore breeze from the SSW keeping things clean. The energy drops to a moderate 375, but it’ll still be rideable. The swell is short period (8 seconds) and a bit smaller, but for a morning session, it’s a solid backup.

After that, the energy fades fast. The rest of the second week sees a drop back to small, weak waves under 3 ft, with periods dropping into the 7-9 second range and very low energy readings (under 200). Winds are mostly cross or onshore, so it’s not going to be worth chasing. There’s a brief window on Monday, August 24th morning with a tiny 1 ft groundswell from the ESE at 12 seconds – clean and glassy, but that’s barely a knee-high ripple. It’s a long way out, and the energy is weak (91), so don’t get your hopes up.

If you’re a beginner, the 7 ft on the 20th is going to be a handful – that’s intermediate territory. For the experts, that’s the one to be on.

Overall, the best bet is Thursday, August 20th morning. Get it while it’s glassy. The rest of the window is mostly for the patient or the kayak crew.

Rusty.

Read more