Kugenuma Rivermouth Surf Forecast and Surf Report

Alright, let's take a look at what's on the table for Kugenuma Rivermouth.

Honestly, the next week or so is a tough slog. We’ve got a proper drought of surf from now until the end of next week. Small, weak, and messy little waves with onshore winds are the story until we get past the 23rd of August. The combined swell energy is minimal, barely registering (29 on Monday morning), so don’t bother paddling out. There’s a long gap of pretty much nothing worthwhile until we hit that Sunday the 24th of August.

Now, things start to get interesting around Monday the 24th of August. We’ve got a proper swell arriving from the SSE, with a very long period of 16 seconds and combined energy jumping to 500. The wind is light offshore from the NNE Monday morning, making for some clean lines. The swell size is only 3ft, so it’s not big, but that long-period groundswell will wrap into the rivermouth nicely. Keep in mind, with a period that long, it might make the waves a bit straight at the beach, but for a river mouth spot, it should set up some nice, clean shoulders.

The standout, without a doubt, is the morning of Tuesday the 25th of August. We’re looking at a solid 5ft swell from the SSE with a 15-second period, and combined energy is pumping at 1084. The wind is light and cross-offshore from the ENE, keeping it clean. This is a solid, powerful groundswell for experienced surfers. It’s going to be a bit too much for beginners with that size and energy.

Then Wednesday the 26th of August morning is another absolute gem. The wind is glassy, absolutely dead calm from the S, at just 3 mph. The swell is 6ft from the SSE with a 15-second period, and the combined energy is a massive 1362. For experts, this is the pick of the bunch. Clean, powerful waves rolling in with no wind. This is going to be fantastic, but it’s strictly for experienced surfers. The afternoon does get a bit onshore, but that morning window is pure gold.

Moving into the end of the month, the consistency holds from the 30th of August. Sunday the 30th of August afternoon and Monday the 31st of August morning look excellent again. On Sunday afternoon, we have 4ft from the SE at 16 seconds with light cross-off winds and a combined energy of 1036. Clean and solid. Monday morning the 31st is similar, with 5ft from the SE at 15 seconds and combined energy of 1256.

Right at the very end of the forecast, on the 1st of September, we see a monster 25ft swell from the SSE. While the wind is light, a wave that size at Kugenuma Rivermouth is just too big and dangerous for anyone but absolute experts, and even then, it’s a question of whether it’s even surfable. It’s a cleanup set for the entire coast.

So, to sum it up: don’t bother until the 24th. The real standouts are the mornings of the 25th and 26th of August. The 26th is the absolute best with glassy conditions and powerful waves. Get on it.

Rusty.

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