Surf Forecasts:
Nantasket Beach surf forecast from 18 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 8PM (local time) - 2ft (0.6m), 10s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 5AM (local time) - 4.5ft (1.3m), 6s period, SE swell with 100 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 8PM (local time) - 2ft (0.6m), 10s period with ESE 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 Wednesday (Jul 22) at 8PM. The primary swell is predicted to be 0.6m and 10s period. 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 1.3m 6s and forecast to arrive on Wednesday (Jul 22) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 6s period and expected on Sunday (Jul 19) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 22nd Jul) | 2ft (0.6m) 10s |
| Best Surf | 8PM (Wed 22nd Jul) | 2ft (0.6m) 10s |
| Most Powerful | 5AM (Wed 22nd Jul) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for Nantasket Beach.
Straight up, I'm not gonna sugarcoat it. We are looking at a pretty grim stretch of surf ahead. The next two weeks are basically a write-off for anyone wanting to get a proper wave. The very first couple of days are a flat calm with tiny little 0.3ft windswell, and the wind is just all over the place. It’s a real bummer, and there's a massive gap of nothingness before we even see a whisper of something rideable.
For a good chunk of the first week, from Friday the 17th well into the following week, it's just a long, flat spell. The odd bit of energy creeps in around the 22nd, but it's still weak and messy. There's a tiny window on the afternoon of Wednesday the 22nd where some 2ft swell from the SE pushes through, with a period of 10 seconds. The combined energy is a paltry 108 (moderate energy), and while the wind is cross-offshore from the SW, it's still not enough to get excited about. The water is a touch warmer than normal at 69°, but that's the only positive note.
Even Thursday the 23rd afternoon, we get a brief moment of glassy conditions with a 2ft SE swell, but it's only an 8-second period and the energy is a weak 99. The description says "surfable waves but very ordinary conditions," and that’s the best we get. It’s just not enough to call a standout.
The whole second week, from the 24th of July right through to the 1st of August, is a continuation of the same story. Tiny, weak swells, mostly from the ESE or SE, with periods all over the place but never enough to get any real power. Winds are a mix of cross-on and onshore, keeping things choppy and messy. There's no single day where the conditions align for a decent session. I wouldn't even bother paddling out for this.
For a beach break that's exposed to the NE, the lack of any decent groundswell and the constant onshore flow is a killer. This setup is honestly more interesting for kite surfing than paddle surfing on most of these days. It's a tough run, but with Nantasket being a consistent spot, it tends not to stay this poor for long. The forecasts can change, so keep your eyes peeled, but for now, it's a hard pass.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 29°C on Sat afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the SSW on Sat afternoon, light winds from the NNE by Mon morning). | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Warm (max 27°C on Wed afternoon, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 14 | E 14 | S 4 | E 13 | E 13 | E 12 | NNE 4 | E 12 | E 12 | E 12 | E 12 | SE 4 | ESE 6 | SE 6 | SE 8 | ESE 10 | ESE 10 | ESE 8 | ESE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 4 | 4 | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 17 | 53 | 35 | 18 | 59 | 38 | 24 | 21 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-off | cross-off | off | off | off | cross-off |
High Tide | 2:38AM3.20m | 3:14PM3.01m | 3:31AM3.02m | 4:05PM2.96m | 4:26AM2.83m | 4:57PM2.90m | 5:24AM2.64m | 5:49PM2.83m | 6:22AM2.49m | 6:41PM2.78m | 7:20AM2.38m | 7:33PM2.73m | |||||||
Low Tide | 8:24PM-0.01m | 8:57AM-0.20m | 9:18PM0.06m | 9:47AM-0.05m | 10:14PM0.15m | 10:38AM0.12m | 11:13PM0.23m | 11:30AM0.29m | 00:11AM0.30m | 12:22PM0.44m | 1:09AM0.34m | 1:15PM0.55m | 2:08AM0.36m | ||||||
 | | |  |  | |  | | | |  | |  |  | |  | | | | |
 | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — |
 | 8:16 | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | 24 | 2 | 2 | 2 | — | — | — |
Temp °C | 25 | 27 | 29 | 23 | 23 | 26 | 25 | 24 | 25 | 23 | 23 | 24 | 22 | 23 | 27 | 23 | 22 | 24 | 21 |
Feels °C | 23 | 24 | 26 | 23 | 18 | 22 | 23 | 21 | 21 | 18 | 21 | 21 | 22 | 24 | 28 | 25 | 20 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | SE 6 | SE 6 | SE 6 | NNE 4 | — | SE 9 | E 8 | E 12 | E 11 | E 11 | SE 6 | ESE 6 | ESE 10 | ESE 10 | ESE 8 | ESE 7 |
| kJ | 4 | 4 | 3 | 8 | 1 | 1 | 3 | — | 3 | 1 | 3 | 2 | 2 | 35 | 14 | 59 | 38 | 24 | 21 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 13 | E 13 | E 12 | SE 6 | SE 6 | E 12 | E 12 | — | — | — | — | SE 8 | — | — | — | — |
| kJ | 1 | 1 | 1 | 3 | 3 | 3 | 1 | 1 | 3 | 3 | — | — | — | — | 18 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 8 | — | — | — | E 8 | SE 8 | E 12 | E 12 | — | — | — | — | — | S 9 | — | — | — | — |
| kJ | — | 1 | — | — | — | 1 | 2 | 3 | 3 | — | — | — | — | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 4 | SW 3 | NNW 3 | N 3 | — | — | SE 2 | SSE 4 | SE 3 | SE 4 | ESE 6 | SSW 2 | — | NW 3 | — | SE 3 | — |
| kJ | — | — | 12 | 1 | 4 | 2 | — | — | 1 | 1 | 2 | 17 | 53 | 1 | — | 2 | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 523 | 531 | 399 | 471 | 108 | 91 | 117 | 113 | 160 | 113 | 1679 | 2691 | 1230 | 131 | 12 | 7 | 12 | 12 | 12 |
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.
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