Nantasket Beach Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get straight into it. The outlook for the next 16 days is a real tough one for Nantasket Beach. We’ve got a stretch of flat, poor surf that just won’t let up. The first few days are a write-off, but we’ll walk through the whole period.

Right off the bat, Thursday the 6th gives us a tiny 0.3ft swell from the SE with a weak period of 8 seconds. The combined energy is a measly 4 (weak), and with a risk of thunderstorms and a cross-off shore breeze, it’s not surfable. The water is sitting at 66°, which is a bit colder than normal for this time of year.

Friday the 7th through to the morning of the 14th is a brutal stretch of nothing. Days and days of 0.3ft to 1.0ft swell, with periods mostly under 10 seconds, and combined energy values that barely hit double digits – the highest in that run is just 9 (weak). Even when the wind goes offshore or glassy, like on Friday afternoon the 7th with a glassy calm, or Sunday morning the 9th with a clean offshore breeze, there’s simply no wave to ride. It’s a flat spell that goes on for over a week.

There’s a flicker of life on Friday afternoon the 14th. We finally see a 3ft swell from the NNE, but it’s attached to a short period of just 4 seconds, so it’s going to be weak and bumpy. The combined energy is 31 (still weak). The wind is a clean offshore breeze, so it’ll look pretty, but that short period means it’s just not going to stand up. It’s still rated as poor surf.

The rest of the outlook doesn’t get much better. Saturday the 15th has a 2ft swell from the NE, again with a short 5-second period, and a glassy afternoon, but it’s too small and weak for a proper ride. The 1ft to 2ft swells that pop up on the 18th and 19th come from the SSE and S, with very short 4-second periods and combined energy between 6 and 15 (weak). The offshore winds on those days will keep the surface clean, but there’s just no power in the water.

The best on offer – and I say that loosely – is the morning of the 21st of August. We’ve got a 1.0ft swell from the ESE with an 8-second period and a combined energy of 18 (weak). The wind is a light cross-offshore breeze at 10 km/h, so it’ll be clean. But at 1.0ft, it’s really only a splash-around for a longboard if you’re desperate. It’s not a standout by any stretch.

Because Nantasket Beach is consistent in its outlook, but consistently flat during this period, it’s a rare blank run that’s hard to sugarcoat. There’s no reason to get excited here. The setup looks more interesting for a paddleboard than a surfboard most days.

Stay tuned, but don’t hold your breath. This is Rusty, signing off.

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