Asakawa Surf Forecast and Surf Report

Alright, let's get into it. Asakawa's a point break that’s pretty picky about when it turns on, and this 16-day window is a real mixed bag. We’ve got a slow start, then a couple of serious standouts, but also some proper wild weather to dodge.

The first few days are flat and ordinary. Friday the 21st through Sunday the 23rd of August only offer up ankle-to-waist high waves around 2ft to 3ft from the south, with a short period around 9 seconds. The energy’s weak (175). The mornings are glassy though, which is a silver lining, but the afternoons get chopped up by onshore breezes. Not worth paddling out for.

Monday the 24th sees a jump in size, but it’s not clean. The swell comes from the southeast at 6ft to 8ft, and the period stretches to 16-17 seconds – that’s proper groundswell energy (2629 to 4151). The problem is the wind is on or cross-onshore, so it’s messy. The wave comment says “marginal” and that’s generous. It’s a wait-and-see day.

Now, Tuesday the 25th of August is the standout. Absolutely. Morning glass-off conditions with a light cross-offshore breeze from the northeast at 6 mph. The swell is a solid 15ft from the south-southeast, with a 16-second period. That’s massive energy (10257). The wave comment calls it “exceptional for expert surfers” and that’s no joke. This is a big, powerful groundswell hitting a point break, which is exactly where you want that kind of period. Only for the experienced crew – this is not a beginner wave. The afternoon shifts to a cross-shore wind and the energy stays huge, but the morning is the moment.

Then it all goes sideways. From Wednesday the 26th through Thursday the 27th, we get nuked by near-gale and strong breeze winds from the south, southwest, and west-southwest. Swell is still 8ft to 10ft, but it’s blown out and ugly. Zero score days. Forget it.

Friday the 28th and Saturday the 29th calm down. The swell drops to 3ft to 5ft from the south-southeast with a short 8-9 second period. The wind is light and offshore (north-northeast), so the mornings are glassy and the afternoons are clean. The energy is moderate (261 to 369). It’s not pumping, but it’s surfable, clean, and a good option for a mellow session.

Sunday the 30th of August offers a promising morning. Clean conditions with a light offshore breeze from the northeast. Swell is 5ft from the southeast, period 11 seconds, energy 683. The wave comment says “very good surf conditions.” This is a solid, fun day.

Monday the 31st and Tuesday the 1st of September see a building trend. Swell is 6ft to 8ft from the southeast, period 13-14 seconds, energy jumping from 1301 to 2238. Tuesday morning and afternoon are glassy. The wave comment says “excellent for experienced surfers.” That’s a genuine, high-quality session – clean, decent size, long period groundswell working on a point.

Wednesday the 2nd of September holds size at 8ft to 10ft from the southeast, period 17 seconds, energy 2492 to 5884. The wind is moderate cross-offshore from the north-northeast, so it’s clean. But it’s a big, powerful swell – only for the strong paddlers.

Thursday the 3rd of September is the other major standout. Morning conditions: light cross-offshore wind from the northeast at 6 mph, swell 16ft from the southeast with an 18-second period, energy 16033. The wave comment says “exceptional for expert surfers.” That’s a monster groundswell, clean, and firing on the point. The afternoon gets even bigger at 20ft, but the wave comment says it might be too big for the break. If you’re an expert, the morning is your window.

Friday the 4th of September is still solid but a step down. Morning glass-off, swell 12ft from the east-southeast, period 15 seconds, energy 5258. Clean and excellent for experienced surfers. The afternoon fades.

Saturday the 5th of September drops off to 2ft and weak energy (108). The season is winding down.

The best on offer is clearly Tuesday the 25th of August morning and Thursday the 3rd of September morning. Both are big, clean, long-period groundswells with favorable winds. The 25th is a bit more accessible size-wise (15ft) while the 3rd is a proper big-wave day (16ft+). Both are only for experts. For the average surfer, the best windows are Tuesday the 1st of September morning and Thursday the 4th of September morning – solid size, glassy, and excellent quality.

Rusty.

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