Kugenuma Rivermouth Surf Forecast and Surf Report

Alright, Rusty here. Let's have a look at what's cookin' at Kugenuma Rivermouth.

Honestly, mate, we're in for a proper test of patience. The first week and a half is looking grim. From now, Sunday the 13th of September, right through to the morning of Saturday the 19th, the swell is tiny, the wind is all over the place, and it's just plain poor surf conditions. There's a good 6-day stretch of nothing worth paddling out for. You'll be staring at flat, bumpy water.

But hold onto your board shorts, because things take a serious turn on the 19th. A big, long-period groundswell starts to show up. Saturday morning sees a 6ft SE swell with a period of 16 seconds, and it's cranking up with a combined wave energy of 1412 (moderate to strong). That's a real swell. The wind is fresh offshore from the N, so the face should be clean. This is the first time we see a score worth mentioning, but it's still marginal for tide and quality. By Saturday afternoon, it's pushing 6ft and the energy jumps to 1533. This is big, powerful stuff. Because the period is so long (16 seconds), this is a true groundswell. At a rivermouth, that long period energy will focus and bend, giving you some proper, lined-up walls. It won't be for the faint of heart – over 5ft, it's getting too big for beginners, and this is expert territory. Crowds are listed as 'often' here, so expect a crew out.

Sunday the 20th backs off a touch to 5ft SSE with an 11-second period, but still solid energy (1001). The wind stays offshore, so it'll be clean. This is still a good option for the crew who know what they're doing.

Now, the standout. If you can wait, Monday the 21st of September is the one. The morning session has a 6ft SSW swell, 13-second period, and the combined energy is a meaty 1381. The wind is light and cross-off from the E, making it clean. This is the best call of the whole run. It's a solid, powerful swell with the right wind for the rivermouth.

The water temp is about average for this time of year, nothing weird going on there.

After that, the quality drops off again. Tuesday the 22nd is still big (8ft) but the wind turns onshore from the SSW, making it a messy, blown-out mess. By Wednesday the 23rd, it's gone again with a gale warning, and we're back to tiny dribble for the rest of the period into the 28th.

So, to sum it up: the first half is a write-off. The real action is from Saturday the 19th through Monday the 21st. Monday the 21st morning is your best bet for the cleanest, most powerful waves. Sunday the 20th is a close second. Get out there if you're keen and can handle the size.

Rusty.

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