Kugenuma Rivermouth Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a yarn about what’s coming up for Kugenuma Rivermouth. Gotta be straight with you—the next week and a half is a bit of a write-off for any decent paddle. We’re looking at a long, dry spell from now until around the 25th of August where the ocean just isn’t cooperating. Tiny little dribbles of swell, poor conditions, and messy onshore breezes. It’s a proper flat spell for this part of the world.

The first time things get interesting is on the morning of Wednesday the 26th of August. It’s still small, but that 3 ft of SSE swell showing up with 11-second period is a nice change. The combined energy is getting up to 341 (moderate) and the key here is the glassy wind conditions. If you’re desperate for a splash, this is the first real window, but it’s marginal.

Thursday the 27th picks up a bit more, with 5 ft swell from the S and a period of 14 seconds, pushing the energy to 848 (moderate), but the wind is cross-onshore and messy. Not a great look.

Now, hold onto your board, because the standouts are coming in the first week of September. Sunday the 30th of August morning is the first real gem. Clean 4 ft swell from the SE with a 12-second period and a gentle offshore breeze from the NE. The energy is reading 785 (moderate) and the wind is clean, so expect some tidy lines. Kugenuma Rivermouth handles SE swell okay, but it’s not the optimum direction for the break, so don't expect perfection.

The absolute pick of the whole run is the morning of Tuesday the 1st of September. That’s over a week away, so keep an eye on it, but the models are pumping. We’ve got a 5 ft groundswell rolling in from the SSW with a very long 15-second period and glassy conditions. The combined energy jumps to 1943 (strong to very strong). For a rivermouth setup that’s exposed to the south, this is a magic alignment. The crowd factor is “often” here, so expect a few heads out, but for good reason. That SSW direction matches the optimum swell direction for this break, and the long period will push through with real power. It’s going to be too big for beginners, but for experienced surfers, this is a cracker.

Wednesday the 2nd and Thursday the 3rd of September keep the momentum with solid 5 ft to 6 ft SSW swells, long periods of 15 seconds, and clean offshore winds. The energy stays in the strong range (2001 and 1191). These are all excellent conditions, but again, that's expert territory with the size.

So, to wrap it up: forget the first week unless you’re happy with a flat spell. The real buzz starts Sunday the 30th of August, but the big standout to circle on your calendar is Tuesday the 1st of September morning.

Stay stoked, catch you in the water.

Rusty.

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