Shichirigahama Surf Forecast and Surf Report

Alright, this is Rusty, and I’m looking at Shichirigahama for the next couple of weeks. Gotta be straight with you – it’s a tough start. The first week is pretty much a write-off for any kind of decent paddle. We’ve got a few swells coming, but the wind and conditions are just all over the place, not giving us anything to work with.

We’re looking at about a week of nothing good. From the 1st of September right through to the 8th, it’s just poor surf with flat, tiny waves and messy wind. The water temperature is sitting at a warm 82°, which is a touch warmer than normal for this time of year, so at least the wait won't be cold.

Now, things start to turn around properly on the 9th of September. That’s the standout. Wednesday morning sees a 7ft swell from the south, with a nice 11-second period. The wind is offshore from the NNE at 12 mph, making for clean conditions. The wave energy is strong (1065). This is a proper groundswell hitting the river mouth at Shichirigahama, and that long period will make for some well-shaped, powerful lines. The afternoon stays clean with a 7ft south swell and a light cross-offshore breeze. This is the session to circle on your calendar.

The 10th of September keeps the quality going into Thursday morning. Still a solid 7ft south swell, period stretching to 12 seconds, and offshore winds from the NE at 9 mph. The energy is very strong (1179). This is a long-period groundswell, so at the river mouth, expect big, walling sets with nice long lulls in between. It’s excellent but it’s a bigger swell, over 5ft, so it’s not for beginners. Afternoon on the 10th gets a bit questionable with onshore wind, so get it in the morning.

After that, the 11th and 12th of September get sloppy with strong onshore winds, so the quality drops hard. The 13th has a small, clean, surfable wave in the morning, nothing special. The 14th of September later in the afternoon offers a surprise – a 3ft south-southeast swell with a long 12-second period, clean with a light cross-offshore breeze. The energy is moderate (347), but it’s a clean, long-period pick for an afternoon paddle after a long dry spell.

The final few days into the 16th are small and weak, with minimal energy. Not worth getting excited about.

For the best on offer, it’s all about the 9th and 10th of September. The 9th of September morning is the top pick: 7ft of south swell, clean offshore wind, and a strong, powerful groundswell for the river mouth. The 10th of September morning is a very close second with slightly bigger, longer-period energy. Don’t sleep on these.

Stay safe, keep an eye on the sky, and I’ll catch you in the water.

Rusty

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