Nantasket Beach Surf Forecast and Surf Report

Hey, it’s Rusty. Look, I’ll level with you – this 16-day stretch for Nantasket Beach is a total washout. There’s nothing on offer for a surfer. Not a single session worth even waxing up for. We’ve got a long, flat spell running from the end of August into the first days of September, with no real swell to speak of.

Kicking off Saturday, August 22nd, there’s a small bump around 3ft from the east, but the energy is weak (59) and the period is a short, choppy 5 seconds. The wind is blowing from the northeast at 12 mph, making it a messy cross-onshore mess. It’s a no-go. Sunday the 23rd drops even smaller, to about 2ft from the east-northeast, and the wind shifts but never cleans it up. By Monday the 24th, we’re looking at 1ft from the east, with clean offshore breezes, but there’s simply no size or punch – wave energy is down around 27. Tuesday the 25th is laughable at 0.7ft, even with a long period of 11 seconds from the east, the energy is a paltry 16. That pattern of tiny, weak swell sticks around for days.

Wednesday the 26th offers 1ft from the east-southeast with a period of 8 seconds, clean and offshore in the morning, but again, it’s not surfable. By Thursday the 27th, we’re down to 1.0ft, and the rest of the week is a slow fade into nothing. There’s a moment of glassy conditions on Friday the 28th, with the wind dropping to 3 mph, but the swell is a pathetic 0.7ft to 1ft from the east-southeast – flat as a pancake. Saturday the 29th and Sunday the 30th are the same story: tiny leftover bumps with no power.

Going into the second week, it doesn’t get any better. Monday, August 31st, shows a 17-second period from the east, but the height is a measly 0.3ft – that’s a long-period groundswell with no height to ride. The energy is only 16, and the wind is cross-offshore at 9 mph. It’s clean, but there’s nothing to catch. Tuesday, September 1st, is more of the same: 0.7ft from the east, 14-second period, energy of 18. Wednesday the 2nd gives us a glimmer of glassy conditions on the afternoon with 1.0ft from the east and an 11-second period, but it’s still barely a ripple. From there, we roll through to Sunday, September 6th, with nothing but 1.0ft to 1ft from the east-southeast, short periods, and onshore winds. The combined energy never breaks out of the weak range – the highest it gets is 29 on Friday, September 4th in the morning, but that comes with a 1ft swell and a period of just 8 seconds.

Water temperature is sitting at about 70°F, which is pretty normal for this time of year, so at least you won’t freeze if you go for a dip.

Honestly, for a spot like Nantasket Beach, this kind of blank run happens. The forecasts can change, but right now, there’s zero to chase. No standout days, no hidden gem sessions. If the wind and swell ever line up, it’ll come as a surprise, but for the next 16 days, you’re better off finding another hobby or driving somewhere else. This setup looks more interesting for a paddleboard or a swim than a surfboard.

Rusty.

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