Hanamizu River Surf Forecast and Surf Report

Alright, Rusty here. Let’s talk about what’s cooking at Hanamizu River.

Right out of the gate, it’s a quiet stretch. The first few days are small and messy. Friday the 21st kicks off with weak 2ft swell from the south, and a southerly breeze messing things up. Energy’s feeble, just 50 (weak). That’s a no-go.

Saturday the 22nd looks glassy in the morning but the swell’s barely there at 1ft. It’s pretty but gutless. Same story Sunday, Monday, Tuesday – just tiny, unimpressive slop. The water temp is about 80°, which is bang on average for this time of year, nothing special.

Now, Monday the 24th things start to shift. That morning we see 4ft from the SSE with a very long period of 15 seconds. Energy jumps to 1051 (moderate). The wind’s light cross-onshore which isn’t perfect, but that long-period groundswell has some grunt. Still, the conditions are only marginal. In the afternoon, the swell bumps to 5ft (16-second period, energy 1333), but the wind picks up and it gets choppy. Not the day.

Tuesday the 25th morning offers the best chance of the first week. Swell hits 6ft from the south, period 14 seconds, energy 1404 (moderate). The wind is just a slight air, so it’s nearly glassy. That’s about as clean as it gets around here. It’s a bit bigger for beginners, but intermediates will be into it. The break is a beach/sandbar, and with that long period, the waves might be a little straight, but the wind’s so light it’ll still be fun.

Wednesday and Thursday drop back into mediocrity, though Thursday the 27th morning has a brief window of clean 4ft swell from the south with cross-offshore winds. Nothing special, but rideable.

After that, we hit a real lull. From Friday the 28th all the way through to Tuesday the 2nd of September, it’s tiny. Lots of mornings with clean conditions but zero push. You’re staring at flatness.

Then, bam. Wednesday the 3rd of September morning brings a solid 8ft SE swell with an 18-second period. Energy’s at 4624 (strong). Wind is cross-shore, but it’s a big, long-period groundswell. In the afternoon, it jumps to 12ft from the SE, period 16 seconds, energy 6502 (very strong), and the wind turns cross-offshore. The report says it’s too big for this break – and yeah, for a beach/sandbar like this, over 8ft is expert territory. That’s a serious, powerful swell. If you’re a charger, that afternoon on the 3rd is your window, but know it’s gonna be heavy.

Thursday the 4th of September morning is enormous – 18ft from SSE, energy 7470 (very strong), with clean cross-offshore winds. That’s a massive groundswell. Again, too big for most. By the afternoon, it’s eased to 8ft from the south, still clean. That’s your best standalone, manageable session – but only if you’ve got the experience.

After that, it drops off fast. Friday the 5th is small again.

So, the standouts? There are two. Tuesday the 25th morning: 6ft S swell, glassy, clean – the best all-rounder for the average surfer. And Thursday the 4th of September afternoon: 8ft S swell, clean cross-offshore winds – the pick for experienced crew who can handle a bigger, clean, long-period swell. Just be mindful, the long period might make this sandbar break a bit straight.

Crowds at Hanamizu River are only “sometimes” busy, but with that kind of size on the 4th, the regulars will be out. You’ve been warned.

Rusty

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