Outside Corner Surf Forecast and Surf Report

G’day, Rusty here. Let’s get straight into it. The surf forecast for the coming stretch is a proper run of solid, consistent south-west groundswell, and the standout window is shaping up to be around the 10th and 11th. Before that, we’ve got a few days of good, clean waves that’ll get the blood pumping, but the real juice arrives later.

The first solid push starts Wednesday morning the 5th. Outside Corner (Big Island) is going to have clean 5.6ft surf from the SSW with a 15-second period. The water’s sitting at 78.9°, which is pretty much average for this time of year, so no surprises there. The wind’s blowing offshore from the ESE at 12 mph, and it’s looking glassy. Wave energy is strong at 1451, so there’s plenty of push behind it. This is a reef and point setup, so that long-period swell is going to wrap in nicely. It’s fairly consistent, but don’t expect a circus – though the crowds can show up sometimes.

Thursday the 6th cranks it up a notch. Morning sees 6.9ft from the SSW with a 17-second period and a fresh offshore breeze at 19 mph. The energy jumps to 2460, and it’s still clean. The afternoon holds steady at 6.9ft but with a 16-second period and a moderate offshore wind. This is where things start to get interesting.

Friday the 7th is where I’d be circling the calendar. Both morning and afternoon sessions are looking at 8.2ft of clean SSW swell with 17 and 16-second periods respectively. The wind is offshore, moderate, and the energy is pumping hard at 3331 and 3628. This is proper groundswell, and it’s going to be firing along the point. This is a big day for experienced surfers – 8.2ft is pushing into expert territory, so leave the beginners at home.

The weekend settles slightly but stays solid. Saturday the 8th has 7.9ft in the morning with a 16-second period and offshore wind, but the afternoon gets a bit cross-off and the energy drops slightly. Sunday the 9th is similar – 6.9ft in the morning, still clean, but the afternoon turns cross-off and the quality fades a touch.

Now, the standout. Monday the 10th of August. The morning is still decent at 6.9ft with a massive 19-second period, but the energy is already building at 4672. But the afternoon is the one. The swell jumps to 9.8ft from the SSW with that same 19-second period, and the energy explodes to 7001. The wind is cross-off, but it’s clean. This is a proper, raw, powerful groundswell. It’s big, it’s long-period, and this reef and point is going to turn it into some serious, organised lines. This is the best on offer, hands down.

Tuesday the 11th keeps the momentum. Morning sees 9.8ft from the SSW with a 17-second period and clean offshore wind, energy at 5580. The afternoon eases slightly to 9.8ft with a 16-second period, but it’s still big and powerful. If you can only get out once, make it the morning of the 11th – it’s exceptional.

After that, the swell backs off a bit. Wednesday the 12th drops to 7.2ft in the morning and 6.6ft in the afternoon, both with 15-second periods and offshore winds. Still good, clean waves, but a step down. Thursday the 13th sees a re-charge, with 9.8ft in the morning and 8.2ft in the afternoon, both with 16-second periods and offshore winds. The energy is right up there again, 4066 and 3668. Another excellent day.

The following week is a bit more of a mixed bag. Friday the 14th holds 8.2ft in the morning and 7.5ft in the afternoon, both clean with offshore winds. Saturday the 15th is similar, 8.2ft with 17-second periods, but the wind gets a bit fresher. Sunday the 16th has 7.2ft but the wind is up to 19 mph, still offshore but a bit stronger. Monday the 17th drops to 5.6ft and then 4.9ft, with a shorter 14-second period – the energy is fading. Tuesday the 18th recovers a little, with 5.2ft and 5.9ft, and the longer period is back.

Then, to finish the run, Wednesday the 19th sees another pulse of solid swell – 8.2ft from the SSW with a 17-second period and clean offshore winds. Energy is back up to 4057. That’s a promising end to the window, but it’s a week and a half out, so treat it as a bonus.

So, the takeaway: the standout is the 10th and 11th of August – big, powerful, clean groundswell. The 13th and the 19th are also worth a look. The middle of the window has plenty of good, consistent surf, but those two days are the ones to plan around. It’s a long-period swell, so it’s going to be best

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