Surf Forecasts:
Nantasket Beach surf forecast from 8 Sep 2026:
- Best quality surf: Monday 14 Sep, 8PM (local time) - 3.5ft (1.1m), 5s period, NE swell with glassy winds.
- Most powerful swell: Tuesday 15 Sep, 2AM (local time) - 4.5ft (1.3m), 6s period, NE swell with 104 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 8PM (local time) - 3.5ft (1.1m), 5s period with NE 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 (Sep 14) at 8PM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.2m and 9s. Another secondary swell of 0.1m and 5s is also forecast. The wind is predicted to be glassy 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 Tuesday (Sep 15) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 10) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 14th Sep) | 3.5ft (1.1m) 5s |
| Best Surf | 8PM (Mon 14th Sep) | 3.5ft (1.1m) 5s |
| Most Powerful | 2AM (Tue 15th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, let’s talk this out in proper old-school units. Nantasket Beach is the only game in town, and frankly, it’s a tough watch for the next week and a half. There’s a real dry spell from now until around the 15th of September – just tiny, weak surf.
Tuesday the 8th kicks off with a pathetic 1ft swell out of the ENE at a short 8 seconds. Energy is a whisper at 14. Cross-off wind in the morning turns onshore in the afternoon – nothing doing. Wednesday and Thursday are even smaller, with waves dropping to 0.3ft to 0.7ft. Saturday the 12th has glassy conditions with a light SE breeze, but with a 0.3ft swell, you’re just floating. No ride.
Things wake up a bit on Monday the 15th. Swell pushes to about 5ft from the ENE, still short period at 6 seconds, and the energy jumps to 180 – that’s moderate. Problem is, it’s coming with onshore wind and light rain, so it’ll be sloppy. Not a standout, but at least there’s some power. Tuesday the 16th offers the best of a weak bunch: 3ft swell, clean cross-off wind from the WNW, energy at 68. That’s your cleanest window – waist-high, but short period and weak.
After that, it fades fast. The rest of the run into the 23rd is all knee-high or smaller, mostly onshore or chop. Energy rarely hits 30. Water temp is average for the season. For a spot that’s usually consistent, this is a real quiet period. If you’re keen, hit it early Tuesday the 16th for the cleanest slop. Otherwise, leave the board in the shed.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Thu afternoon, min 19°C on Tue afternoon). Winds increasing (light winds from the SSE on Tue night, fresh winds from the SW by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | SE 4 | E 10 | E 9 | SE 10 | ESE 10 | E 10 | N 4 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 16 | 14 | 13 | 6 | 6 | 9 | 2 | 2 | 4 | 9 | 7 | 2 | 2 | 2 | 2 | 2 | 8 | 7 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | on | cross | cross-on | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:39PM3.04m | 9:25AM2.69m | 9:43PM3.11m | 10:22AM2.84m | 10:39PM3.17m | 11:12AM2.97m | 11:30PM3.19m | 11:59AM3.08m | 00:19AM3.15m | 12:43PM3.12m | 1:06AM3.07m | 1:26PM3.12m | 1:52AM2.95m | ||||||
Low Tide | 3:10AM0.02m | 3:23PM0.20m | 4:08AM-0.07m | 4:21PM0.07m | 4:59AM-0.15m | 5:14PM-0.04m | 5:46AM-0.17m | 6:05PM-0.11m | 6:31AM-0.14m | 6:53PM-0.12m | 7:14AM-0.06m | 7:39PM-0.09m | |||||||
 |  | |  | | |  | |  | | | | | | | | | | | |
 | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 7:07 | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 20 | 22 | 26 | 23 | 26 | 30 | 26 | 18 | 23 | 21 | 19 | 24 | 20 | 23 | 29 | 24 |
Feels °C | 21 | 21 | 19 | 20 | 21 | 25 | 20 | 25 | 28 | 23 | 13 | 20 | 19 | 17 | 22 | 17 | 22 | 28 | 24 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | E 9 | E 8 | SE 4 | SE 10 | ESE 10 | E 10 | N 4 | E 11 | ENE 3 | ENE 4 | ESE 3 | SE 4 | E 10 | ESE 4 |
| kJ | 16 | 14 | 13 | 6 | 6 | 6 | 1 | 1 | 4 | 9 | 7 | 2 | 2 | 1 | 1 | 1 | 2 | 7 | 2 |
Swell 2 Height (m) Direction Period (s) | NNE 4 | — | SE 8 | — | E 10 | E 10 | E 10 | E 9 | SE 5 | E 8 | E 9 | E 10 | E 8 | E 10 | E 10 | E 10 | E 10 | — | ESE 9 |
| kJ | 3 | — | 3 | — | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 8 | — | 8 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | — | SE 8 | — | — | — | E 8 | E 8 | E 8 | — | E 8 | — | SE 6 | — | — | — | — | — |
| kJ | 1 | — | — | 3 | — | — | — | 1 | 1 | 1 | — | 1 | — | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 2 | NNE 2 | — | SE 3 | SE 4 | S 3 | SW 3 | WSW 2 | NW 3 | N 3 | — | N 3 | — | ESE 3 | — | — | SE 4 | — |
| kJ | 3 | 1 | 1 | — | 1 | 9 | 5 | 2 | 1 | 2 | 6 | — | 1 | — | 2 | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 523 | 523 | 655 | 753 | 805 | 950 | 1232 | 64 | 399 | 90 | 113 | 171 | 181 | 660 | 655 | 549 | 439 | 55 | 108 |
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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