Nantasket Beach Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Nantasket Beach.

Well, I’m not gonna lie to you—this stretch of the next 16 days is a tough one. We’ve got a long, quiet spell pretty much from the start all the way through the end of August and into the first couple of days of September. The first real hope doesn’t pop up until Thursday, September 3rd, and even then it’s just starting to rumble. The outlook finally starts looking like something you’d paddle out for on Friday, September 4th. So you’re lookin’ at a solid gap of over a week with next to nothing worth wetting a wetsuit for.

That first ray of light comes on Thursday morning, September 3rd, when a pulse of long-period groundswell starts to build with a period up around 15 seconds, all coming out of the east. The wave energy jumps from next to nothing to a pretty chunky 405 (strong). Swell height is head-high at 3 ft by the morning, but it’s arriving with a gnarly cross-onshore wind from the NE. The seafloor energy is there, but the face is gonna look pretty choppy. It’s not the one to get excited about just yet.

Now, your standout—if you can call it that—is gonna be Friday, September 4th. The swell holds in at about 3 ft out of the east with a 15-second period, and the combined energy is solid at 494 (very strong). The morning has a cross-offshore wind from the NNW at 12 mph, which is a game changer. That means clean, lined-up faces. This is the closest thing to a proper session all outlook. Nantasket can throw up some fun shapes with this kind of east swell, but remember: that long period (15 seconds) means it’ll run a bit fast and straight on a beach break, not unlike a freight train. It’s better for the gutless, but still good fun if you sit in the right spot. The afternoon looks even better: the wind backs off to a gentle southwesterly cross-off, and the energy still sits up at 439. By late morning into early arvo, that’s your window.

Saturday, September 5th still shows knee-to-waist-high waves, around 3 ft to 3 ft, with clean offshore winds from the WNW. Nice little take-off zone for logs or a mid-length, but it's fading fast. After that, the swell backs right off into the second week, with tiny dribblers and cross-shore junk.

The water temperature is around 68° at the start of the run, which is pretty much dead on normal for this time of year. No weird anomalies, just your standard late summer bathwater.

One thing: Nantasket (Massachusetts) is a consistent spot, but when it goes flat, it can stay flat for a while. This long gap of nothing isn’t too unusual for this region in the summer doldrums, so don’t be too gutted. It’s one of those stretches you check the charts and just shake your head.

Alright, keep your eye on that Friday, September 4th. It’s the best of a slim bunch. Crowds can show up here on a clean day, so expect some company.

Rusty.

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