Asakawa Surf Forecast and Surf Report

Alright, Rusty here. Let's have a look at this stretch of water that's been on my mind.

Honestly, for the next week and a half, things are looking pretty flat and uninspiring. You’re looking at small, weak swells with onshore winds messing things up most of the time. It’s a bit of a bummer. The real action, and I mean the *real* action, kicks off about ten days from now.

We start off with Asakawa on Thursday, August 13th. It’s a point break, fairly exposed but the swell is tiny at 2 ft from the SSW, with a period of 9 seconds. The wind is blowing from the S at 6 mph, so it's onshore and messy. The water here is sitting at a warm 84°, which is pretty normal for this time of year. The combined swell energy is weak, only 125, and honestly, there’s not much to get excited about.

Friday morning, August 14th, is the first glimpse of something you could paddle out into. It’s still just 2 ft of S swell at 9 seconds, but the wind goes glassy from the SSE at 3 mph. That’s clean, I’ll give it that. The energy is still only moderate at 110. It’s surfable, just very ordinary.

Saturday morning, August 15th, is much the same: 2 ft S swell, 10-second period, glassy with an ESE breeze at 3 mph. The energy is moderate at 127. Again, clean but small.

The weekend goes downhill after that. Sunday, August 16th, the wind picks up and we get a bump in size to 4 ft from the ESE, but the period drops to a short, weak 5 seconds. That’s junk. The energy climbs to 218, but it’s just wind-slop with onshore winds. Not worth it.

Monday, August 17th through Thursday, August 20th is a real write-off. Swell is small, wind is onshore or cross-onshore, and everything is scored as poor. There’s a stretch of about four days where you’re better off doing something else.

Friday, August 21st brings another chance for a clean, small wave. The morning sees 3 ft from the SSE at 8 seconds with glassy conditions from a light SE breeze at 3 mph. The energy is 120. The afternoon gets interesting: 2 ft from the S but the period stretches to 11 seconds, giving the wave a bit more grunt with the energy at 201, and it’s glassy with a 3 mph S wind. That’s a nice little window.

Now, if you want a standout, you have to wait for Sunday, August 23rd. That’s the one. The morning brings a solid 6 ft swell from the SE, and the period is a beautiful 16 seconds. That’s proper groundswell. The wind is offshore from the N at 3 mph. The combined energy is a massive 2067, strong and powerful. This is excellent surf for experienced surfers. That long period means it’s going to be organized and powerful at this point break.

Monday, August 24th and Tuesday, August 25th are even bigger, with 12 ft to 13 ft swells from the SSE and SE, periods of 16 to 17 seconds, and glassy to clean winds. The energy readings are astronomical, over 6500 and up to 7841. This is expert-only territory. The size is too big for beginners, and the power is immense. The long period and big size mean it could be tricky, because very long-period groundswells at a point break can be a bit unruly, but the conditions are perfect.

Wednesday, August 26th keeps the huge 13 ft to 15 ft swell going, but by the afternoon the wind turns cross-onshore at 6 mph from the S, which will junk it up. The morning is still glassy from the SE at 3 mph, so that’s your window if you’re an expert.

Thursday, August 27th sees the swell drop back down to 5 ft from the ESE with a 12-second period, clean and glassy in the morning. That’s a good, solid day for most surfers. The energy is a moderate 819.

After that, it fades back to flat and small from Friday, August 28th onward.

So, the pick of the litter is easily Sunday, August 23rd through Tuesday, August 26th for the experts. For everyone else, the glassy mornings on Friday, August 21st and Saturday, August 22nd are your best bet for a clean, small wave.

Stay tuned, forecasts can always shift.

Rusty.

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