Surf Forecasts:
Nantasket Beach surf forecast from 21 Aug 2026:
- Most powerful swell: Saturday 22 Aug, 2PM (local time) - 4ft (1.2m), 6s period, ENE swell with 94 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 1.2m 6s and forecast to arrive on Saturday (Aug 22) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 22nd Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Rusty here with the rundown on Nantasket Beach. Honestly, it’s a flat spell – from today (21 Aug) all the way to the 5th of September, there’s nothing worth jumping in for. The swell’s barely there – most days we’re talking less than a foot or two, and when there’s a tiny pulse, the wind’s often onshore or cross making it choppy. Even the clean windows with offshore breeze have almost no wave energy. The biggest swell is about 4ft on the morning of the 22nd, but it’s only 5 seconds and cross-onshore, so it’s a closeout mess. Energy readings are low – mostly in the teens or twenties (like 29, 36, 61 at best). For a break that’s usually consistent and exposed to NE swell, this is a weird quiet stretch. But Nantasket’s known to bounce back, so don’t lose hope. Keep checking. That’s all from me – Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Sun morning. Warm (max 21°C on Thu night, min 16°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | ESE 8 | E 8 | E 8 | E 8 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 6 | E 11 | E 11 | E 11 | E 11 | E 13 | SE 6 | ESE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 11 | 22 | 12 | 11 | 69 | 64 | 22 | 9 | 15 | 18 | 13 | 13 | 9 | 9 | 9 | 9 | 3 | 9 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | off | off | off | off | cross-off | glassy | cross-on | cross-off |
High Tide | 6:41AM2.30m | 6:52PM2.64m | 7:41AM2.26m | 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 | |||||||
Low Tide | 00:28AM0.41m | 12:35PM0.65m | 1:27AM0.45m | 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 | |||||||
 |  |  |  |  | |  |  | | | |  |  | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — |
 | 7:37 | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — |
mm | 12 | 1 | — | — | — | 2 | 8 | 11 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 19 | 20 | 20 | 25 | 27 | 25 | 23 | 27 | 24 | 22 | 25 | 23 |
Feels °C | 20 | 18 | 17 | 19 | 17 | 16 | 18 | 21 | 22 | 22 | 25 | 24 | 23 | 19 | 23 | 22 | 22 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | E 8 | ESE 4 | ESE 4 | E 8 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 11 | E 6 | E 6 | ESE 8 |
| kJ | 11 | 22 | 5 | 4 | 6 | 64 | 22 | 9 | 15 | 18 | 12 | 13 | 7 | 6 | 6 | 9 | 3 | 3 | 11 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 15 | E 8 | E 8 | E 13 | E 13 | NNE 4 | NE 5 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 6 | E 10 | E 9 | E 3 |
| kJ | 2 | 4 | 12 | 11 | 3 | 3 | 8 | 3 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 3 | 2 | 7 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | E 14 | E 14 | — | — | E 13 | E 7 | E 8 | ESE 12 | ESE 12 | SSE 7 | S 3 | SE 6 | E 6 | SE 6 | E 13 | E 12 | E 12 |
| kJ | — | — | 4 | 4 | — | — | 3 | 4 | 1 | 14 | 13 | 5 | 1 | 1 | 3 | 1 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 3 | NE 3 | NE 3 | E 5 | NNE 4 | — | — | SE 3 | — | — | — | — | — | — | — | — | SE 6 | — |
| kJ | 8 | 3 | 3 | 2 | 69 | 15 | — | — | 2 | — | — | — | — | — | — | — | — | 9 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 58 | 470 | 2818 | 67 | 805 | 40 | 67 | 79 | 55 | 12 | 58 | 64 | 58 | 58 | 961 | 67 | 523 | 830 | 58 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nantasket Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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