Asakawa Surf Forecast and Surf Report

Alright, let’s get into it. The ocean’s been busy, and it’s gonna stay that way for a bit, but don’t get too excited. The clean windows are gonna be short and the wind’s gonna be a pain for most of the run. We’re looking at a solid start, then a messy middle, and a quiet finish. The first real call is Wednesday morning, and it’s got some punch.

Wednesday morning at Asakawa (Big Island) is where you want to be. We’ve got a solid 15ft of ESE swell rolling in on a 16-second period. That’s proper groundswell, plenty of energy – the combined energy reading is 9886, which is strong. The wind is light ENE cross, so it’s gonna be a little textured but not blown out. Water temp is 84°, which is a touch warmer than normal for this time of year, so it’s gonna feel nice. This is the standout of the first few days, no question. The swell direction is ESE, which is right in the spot’s wheelhouse. It’s a bit inconsistent, so you’ll be waiting for the sets, but when they come, they’ll be worth it. Crowds are possible, so get in early.

That afternoon, the wind clocks around to ESE, making it cross-on, but the swell’s still there at 15ft SE with a 16-second period. The energy bumps up a bit to 10672. It’s still surfable, but that cross-on breeze will put a bit of chop on it. Not as clean as the morning.

Thursday morning, the swell drops slightly to 15ft, but the period backs off to 14 seconds. The wind picks up to 12 mph ENE, which is cross-shore. It’s going to be a bit more choppy, and the score reflects that. Not a total loss, but the magic is fading. By Thursday afternoon, it’s a mess. The wind is up, there’s a risk of thunderstorms, and the surf quality is just poor. That’s a write-off.

Friday morning, we’ve still got 16ft of SSE swell, but the wind is cross and the period is 14 seconds. It’s holding size, but the chop is gonna be there. The afternoon is a write-off again with that onshore wind and storm risk.

Saturday morning, the swell drops a lot to 8ft from the SSW, and it’s not looking good. The wind is still cross, and there’s a storm risk. The energy has dropped to 3690, which is moderate, but the quality just isn’t there. This is the start of a downslide.

From Saturday afternoon through to Tuesday, it’s a real grind. Swell stays in the 6ft to 10ft range, but the wind is mostly cross to cross-on, and there’s a lot of rain and storm risk. The energy readings are dropping, and the surf is just not clean. This is a stretch where you’re better off doing something else.

Now, here’s a little glimmer. Wednesday morning, the 12th of August. The wind drops to nothing – glassy. The swell is down to 6ft from the S with an 11-second period. The energy is weak at 975, but when it’s glassy, even small waves can be fun. The comment says “expect very good surf conditions.” It’s not big, but it’ll be clean. This is the other standout, just for the conditions. The period is 11 seconds, which is decent, but not super long. For a point break, it should be okay.

After that, it’s a slow fade. The swell keeps dropping, the period drops, and the energy readings get into the low hundreds, which is weak. There are a few glassy mornings here and there, like Thursday the 13th morning and Sunday the 16th morning, but the surf is just small – around 2ft to 4ft. It’s not going to be worth the paddle for most people.

The long-range stuff, into the second week, is promising but less certain. The 17th of August has a small blip of ESE swell, but it’s short-period and small. The 19th and 20th have some glassy mornings, but again, the size is tiny. It looks like the run is pretty much done after the first couple of days.

So, bottom line: get on it Wednesday morning for the best combo of size and energy. The Wednesday the 12th morning is the back-up for a clean, small-day session. The rest is mostly a battle with the wind and a dropping swell. This is a spot that’s a bit inconsistent anyway, so this kind of run isn’t unusual. Forecasts can change, but as it stands, don’t plan your week around it.

Rusty.

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