Aoshima Harbour Surf Forecast and Surf Report

Imperial Version

Alright, folks, Rusty here. Let’s get into it.

We’re looking at Aoshima Harbour for the next couple of weeks, and it’s a bit of a mixed bag. The water’s running a touch cooler than usual for this time of year, about 79°, so you might want a slightly thicker spring suit.

The big story is that we’ve got a massive pulse of swell coming in, but it’s way too big for this spot. Thursday the 9th kicks off with a solid 8ft SE groundswell (15-second period), and the energy is pumping through at 4299. That’s a lot of power, but the forecast is pretty clear: it’s going to be too big for the break. The wind is onshore, so it’s a no-go. By Thursday afternoon, it’s up to 10ft, and Friday the 10th sees 12ft SSE swell. The energy numbers are huge (6229 and 7460), but again, it’s just too much wall for Aoshima Harbour. This pattern holds through the weekend, with Saturday the 11th still seeing 12ft and a cross-onshore wind making it choppy. Not our day.

Now, here’s the little window of hope. Sunday morning, the 12th, the swell drops to a cleaner 7ft SSE, and the wind goes glassy. That’s the good stuff for experienced surfers, but it’s still a big wave and the break is a beach/jetty setup, so this is for the crew who know what they're doing. The energy is still strong at 1641. Sunday afternoon gets a bit messy with cross-shore wind.

Monday the 13th morning is a real treat – glassy conditions with a 5ft SSE swell. This is your best bet for a clean, manageable session. The energy is moderate at 464. The wind is dead calm. It’s a solid window for an intermediate surfer.

After that, it fades fast. Tuesday the 14th drops to 3ft, and the rest of the week is small, weak, and poor. We’ve got a long run of nothing from Tuesday afternoon all the way through to Saturday the 19th. That’s a solid 5-day gap of flat or poor conditions.

Then, on Sunday the 19th, we see a new pulse of 7ft SSE swell, but it’s short period (8 seconds) and onshore wind. Not great. Monday the 20th is a bit better with a 6ft ESE swell, but the wind is still onshore. The real monster arrives on Tuesday the 21st with a 20ft ESE swell – that’s a 13166 energy reading. That’s a proper, dangerous swell, and it’s way too big for this spot. Only for the absolute experts.

The end of the outlook looks a bit more promising. Thursday the 23rd goes glassy with a 5ft ESE swell, and then Thursday afternoon we get a proper offshore wind (WSW) with a 4ft SSE groundswell. That’s clean, lined-up surf. The energy is solid at 746. Friday the 24th also looks good with a clean 5ft SSE swell. That’s a nice little run to finish on.

So, the standout is clearly Monday morning the 13th – glassy, 5ft SSE swell, clean waves. That’s the one to circle. The long-range promise is Thursday the 23rd and Friday the 24th, with offshore winds and a solid 4-5ft SSE groundswell. Keep an eye on that.

Rusty.

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