Kugenuma Rivermouth Surf Forecast and Surf Report

Alright folks, Rusty here. Gotta be straight with you – it’s a tough stretch ahead for Kugenuma Rivermouth. This is a river mouth setup, exposed to the south, and for the first week and a half, the ocean is just not delivering. The combined swell energy is stuck in the low double digits, barely cracking 20 – that's a whisper, not a wave. We're talking flat, messy conditions through the end of July and into the first few days of August. There are a few glassy mornings at the end of July and start of August, but with swell heights barely pushing 1ft, it’s a lake, not a surf break. The water temp is about what you’d expect for this time of year.

The real story starts on August 5th (Wednesday). Things begin to stir. The swell picks up to 4ft from the SE, and the combined energy jumps to 652 – that's a real pulse of energy. It’s still a bit crumbly with a cross-onshore wind and a very long 16-second period, which means long lines but can be a bit fat at a river mouth. Not the best, but it's something.

But the standout, the one that gets the heart pumping, is Thursday, August 6th. Early morning, we’ve got a clean 7ft SE swell with a 18-second period – that’s deep ocean groundswell, serious energy. The combined energy is a massive 2896, and with a solid 15 mph offshore wind from the NE, it’s going to be clean, lined-up, and powerful. That’s expert territory, though. Anything over 8ft is for the brave, and at 7ft, it’s still a handful for most. The 18-second period means big gaps between sets, but when they come, they’ll have real push. This is the best on offer, no question.

The swell hangs around into Friday with 6ft and a fresh offshore, but the wind is a bit stronger, making it trickier. By Saturday the 8th, the swell drops back to a more manageable 2ft. It’s a short window, but Thursday morning is the one to circle on the calendar. The rest of the run is a blank.

Rusty.

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