Surf Forecasts:
Nantasket Beach surf forecast from 11 Jul 2026:
- Most powerful swell: Friday 17 Jul, 5AM (local time) - 2.5ft (0.8m), 5s period, N swell with 30 kJ wave energy.
Best Forecast Surf Conditions for Nantasket Beach this week:
The most powerful waves expected at Nantasket Beach in the next 16 days are 0.8m 5s and forecast to arrive on Friday (Jul 17) 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 0.7m 4s period and expected on Friday (Jul 17) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Fri 17th Jul) | 2.5ft (0.8m) 5s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what’s shaking for the next couple of weeks.
Right off the bat, I gotta be straight with you: Nantasket Beach is looking flat and pretty sad for a long stretch. We’ve got a real dry spell on our hands. For the first ten days, from July 11th right through to July 20th, there’s just nothing worth paddling out for. The water temp is sitting at a pretty normal 68° for this time of year, but that’s about the only thing that’s normal. We’re talking tiny waves, mostly under 1ft, and the wind is all over the place – cross-onshore, choppy, or just plain messy. It’s a real bummer.
Now, we do finally see a little flicker of life around July 21st. Tuesday morning, the 21st, we get a small pulse of swell from the ENE. It’s not much, with the combined energy only hitting 61 (weak stuff), and the swell height is a tiny 3ft. The period is a short 6 seconds, so it’s gonna be weak and crumbly. The wind is a clean offshore from the NW, which is a blessing, so the surface will be nice. But honestly, the waves are just too small and weak to get excited about. It’s surfable, but only just. After that, it drops right back down into the doldrums for the rest of the period.
The real standout, if you can call it that, is that Tuesday morning on the 21st. It’s the only time the swell even gets close to 3ft, and the clean offshore wind makes it look the best of a bad bunch. But don’t kid yourself, this is a marginal day for the keenest of locals. The swell direction is ENE, which is okay for Nantasket, but the short period means it’s going to be weak and lacking any punch.
Overall, this is a tough outlook. Over a week of nothing, then a single, weak window. The best advice is to keep the board in the car and check the forecast closer to the 21st, but don’t hold your breath. This is just one of those quiet spells.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 19°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Wed night. Warm (max 35°C on Tue afternoon, min 18°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 10 | E 9 | E 9 | E 9 | E 9 | SE 9 | SE 9 | E 16 | SE 9 | E 15 | E 15 | N 5 | NNE 4 | E 14 | E 14 | N 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 10 | 4 | 4 | 4 | 2 | 7 | 2 | 2 | 2 | 3 | 3 | 5 | 3 | 4 | 4 | 28 | 6 | 4 | 4 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | glassy | off | cross-off | off | cross-off | cross-off | glassy | cross-off | glassy |
High Tide | 9:01PM3.24m | 9:48AM2.70m | 10:00PM3.34m | 10:46AM2.80m | 10:58PM3.41m | 11:42AM2.88m | 11:54PM3.44m | 12:38PM2.95m | 00:50AM3.41m | 1:32PM3.01m | 1:45AM3.33m | 2:24PM3.02m | 2:38AM3.20m | ||||||||
Low Tide | 2:41PM0.21m | 3:35AM-0.15m | 3:42PM0.14m | 4:33AM-0.26m | 4:40PM0.06m | 5:29AM-0.34m | 5:37PM0.00m | 6:24AM-0.38m | 6:33PM-0.04m | 7:17AM-0.37m | 7:29PM-0.04m | 8:08AM-0.31m | 8:24PM-0.01m | 8:57AM-0.20m | |||||||
 |  | | | | |  | | | | |  | |  |  | | | | | | | |
 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 |
 | 8:20 | — | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | 8:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 | 2 | — | — | — | — | — | — |
Temp °C | 24 | 22 | 22 | 23 | 22 | 26 | 27 | 24 | 30 | 35 | 32 | 29 | 31 | 27 | 27 | 31 | 27 | 23 | 25 | 23 | 23 |
Feels °C | 21 | 20 | 20 | 21 | 19 | 24 | 24 | 22 | 28 | 32 | 31 | 27 | 30 | 25 | 25 | 28 | 23 | 21 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | ENE 3 | E 10 | E 9 | E 9 | E 9 | E 9 | SE 4 | SE 9 | — | SE 9 | — | E 9 | NNE 5 | NNE 4 | N 4 | — | E 14 |
| kJ | 10 | 10 | 4 | 4 | 1 | 2 | 7 | 2 | 2 | 2 | 1 | 3 | — | 3 | — | 2 | 12 | 6 | 1 | — | 4 |
Swell 2 Height (m) Direction Period (s) | NE 4 | NE 4 | E 9 | E 10 | E 7 | E 7 | E 6 | E 8 | E 7 | E 8 | SE 9 | — | SE 9 | — | E 9 | — | E 8 | SE 8 | SE 8 | E 14 | E 8 |
| kJ | 2 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 3 | — | 3 | — | 2 | — | 1 | 3 | 3 | 4 | 1 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | — | — | E 9 | E 10 | NE 4 | — | SE 4 | — | — | E 7 | — | E 16 | — | E 15 | E 15 | SE 5 | E 15 | E 14 | E 8 | SE 5 |
| kJ | 9 | — | — | 2 | 2 | 1 | — | 1 | — | — | 1 | — | 5 | — | 4 | 4 | 1 | 4 | 4 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 3 | — | — | SSE 4 | SW 3 | WSW 2 | WSW 3 | WSW 3 | — | — | — | W 2 | WNW 3 | N 5 | — | — | N 3 | N 4 |
| kJ | — | — | — | 2 | — | — | 6 | 2 | 1 | 1 | 1 | — | — | — | 1 | 5 | 28 | — | — | 1 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 531 | 531 | 534 | 653 | 655 | 986 | 1126 | 1001 | 986 | 1235 | 108 | 90 | 113 | 160 | 210 | 113 | 18 | 160 | 2747 | 653 | 523 |
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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