Aoshima Surf Forecast and Surf Report

Alright, Rusty here. Let’s talk about the surf outlook for Aoshima.

The first week doesn’t offer much to get excited about. There’s a small window on Sunday morning the 30th with a clean 3ft swell from the SSE, but it’s weak with only 152 units of energy and a short period of 7 seconds. It’s glassy, so it’s surfable, but don’t expect much. After that, we hit a dry spell. From Sunday afternoon the 30th right through to Friday the 11th of September, conditions are mostly poor or marginal. The winds turn onshore or cross-onshore, and the surf quality just isn’t there. There is a pulse of bigger swell around the 6th and 7th of September, with 10ft from the east, but the wind is howling onshore at 15 to 19 mph, so it’s messy. The energy climbs into the thousands (1634 to 3383), but with that wind, it’s a battle. That setup looks more interesting for kite surfing than paddle surfing.

Now, here is where it gets interesting. The standout window arrives on Saturday morning, the 12th of September. The wind goes light offshore from the WNW, almost glassy, with a solid 10ft swell from the SSE at a very long 16-second period. The energy is pumping at 4615. This is a long-period groundswell, which at a reef break like Aoshima should produce some excellent, powerful waves. This one is for experienced surfers only, as anything over 8ft is expert territory.

The biggest call of the forecast is Sunday morning, the 13th of September. The guidance flags a 16ft swell from the south, with a 15-second period and a colossal energy reading of 17068. The wind is light from the NNW, glassy. However, the file notes that this swell is predicted to be too big for this break. For a reef, that’s a dangerous situation. If you are a big-wave charger, this is a rare and serious event, but for everyone else, it’s a day to watch from the shore.

Monday morning the 14th of September cleans up nicely. The swell drops to 8ft from the south, with a moderate 10-second period. The wind goes glassy again from the NNW, and the energy is a strong 1976. This is excellent surf for experienced surfers.

So, to wrap it up: The entire first week is a write-off. The best on offer is the Saturday morning the 12th of September for experts, and a massive, possibly unrideable swell on Sunday the 13th of September. Monday the 14th is also a solid opportunity with clean conditions.

Rusty.

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