Surf Forecasts:
Nantasket Beach surf forecast from 22 Aug 2026:
- Best quality surf: Monday 24 Aug, 2AM (local time) - 2ft (0.6m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 5PM (local time) - 3.5ft (1.0m), 6s period, E swell with 71 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 2AM (local time) - 2ft (0.6m), 6s period with SE swell.
Best Forecast Surf Conditions for Nantasket Beach this week:
The surf forecast for Nantasket Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 2AM. The primary swell is predicted to be 0.6m and 6s period with a secondary swell of 0.5m and 6s. Another secondary swell of 0.2m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nantasket Beach in the next 16 days are 1.0m 6s and forecast to arrive on Saturday (Aug 22) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 24) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 24th Aug) | 2ft (0.6m) 6s |
| Best Surf | 2AM (Mon 24th Aug) | 2ft (0.6m) 6s |
| Most Powerful | 5PM (Sat 22nd Aug) | 3.5ft (1.0m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
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.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun morning. Warm (max 27°C on Mon afternoon, min 17°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Warm (max 28°C on Thu afternoon, min 16°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 5 | E 6 | E 5 | ENE 5 | E 5 | SE 6 | E 6 | ESE 6 | E 11 | E 11 | E 11 | E 11 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 9 | ESE 8 | ESE 9 | ESE 5 | ESE 8 |
Wave Graph | |||||||||||||||||||||
32 | 71 | 21 | 16 | 14 | 33 | 11 | 13 | 9 | 9 | 9 | 9 | 21 | 24 | 12 | 11 | 7 | 13 | 8 | 9 | 14 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross | cross | cross | glassy | glassy | off |
High Tide | 7:49PM2.62m | 8:40AM2.27m | 8:46PM2.66m | 9:34AM2.33m | 9:38PM2.73m | 10:18AM2.43m | 10:23PM2.82m | 10:58AM2.54m | 11:04PM2.90m | 11:35AM2.65m | 11:43PM2.96m | 12:11PM2.76m | 00:22AM3.00m | ||||||||
Low Tide | 1:31PM0.69m | 2:27AM0.45m | 2:28PM0.67m | 3:22AM0.40m | 3:21PM0.60m | 4:08AM0.32m | 4:08PM0.50m | 4:47AM0.23m | 4:49PM0.39m | 5:23AM0.14m | 5:30PM0.28m | 5:59AM0.07m | 6:10PM0.18m | ||||||||
5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | |
— | 7:34 | — | — | 7:32 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:25 | — | — | 7:23 | — | |
mm | 1 | 3 | — | 5 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 7 | 1 | 2 | 1 |
Temp °C | 19 | 18 | 18 | 19 | 26 | 24 | 25 | 27 | 23 | 23 | 23 | 21 | 22 | 27 | 25 | 25 | 28 | 24 | 22 | 27 | 25 |
Feels °C | 18 | 18 | 18 | 20 | 28 | 26 | 20 | 22 | 20 | 19 | 20 | 19 | 20 | 24 | 23 | 25 | 26 | 24 | 25 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 6 | E 5 | ENE 5 | E 5 | E 6 | E 6 | ESE 6 | E 6 | E 6 | ESE 7 | ESE 6 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 9 | ESE 8 | ESE 7 | ESE 5 | ESE 6 |
10 | 71 | 21 | 16 | 14 | 22 | 11 | 13 | 7 | 7 | 4 | 4 | 21 | 24 | 12 | 11 | 7 | 13 | 5 | 9 | 6 | |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 8 | E 7 | E 12 | E 12 | ESE 7 | E 11 | E 11 | ESE 6 | E 6 | E 11 | E 13 | E 12 | E 12 | E 11 | ESE 7 | E 10 | ESE 9 | ESE 8 | ESE 8 |
3 | 3 | 4 | 4 | 11 | 11 | 5 | 10 | 9 | 4 | 3 | 9 | 3 | 3 | 3 | 2 | 4 | 2 | 8 | 6 | 14 | |
Swell 3 Height (m) Direction Period (s) | E 13 | — | E 13 | E 12 | E 7 | E 12 | E 12 | ESE 11 | — | E 11 | E 11 | E 6 | E 13 | — | — | E 8 | E 11 | — | E 10 | E 10 | E 10 |
14 | — | 3 | 12 | 4 | 11 | 11 | 12 | — | 9 | 9 | 1 | 4 | — | — | 1 | 2 | — | 2 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | E 5 | N 4 | NNE 4 | — | SE 3 | SE 6 | — | — | — | — | — | — | — | — | — | — | SSE 2 | SSE 3 | SE 4 | — | — |
32 | 10 | 6 | — | 2 | 33 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 4 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 893 | 40 | 67 | 565 | 340 | 0 | 385 | 108 | 55 | 58 | 211 | 160 | 55 | 55 | 58 | 523 | 523 | 58 | 58 | 55 | 55 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Nantasket Beach Surf forecast
The above surf forecast table for Nantasket Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nantasket Beach can be found by selecting the local surf guide option on the grey menu. Our Nantasket Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nantasket Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Nantasket Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nantasket Beach is 8 km (5 miles) from the city of Hingham. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Hingham. Hingham has rooms for a wide range of budgets as well as car hire and transport links.











