Surf Forecasts:
Nantasket Beach surf forecast from 14 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 1.5ft (0.4m), 8s period, ESE swell with 22 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 0.4m 8s and forecast to arrive on Wednesday (Aug 19) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Sunday (Aug 16) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 19th Aug) | 1.5ft (0.4m) 8s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Gotta be straight with you: it’s looking pretty flat and grim out there for the next couple of weeks. We’ve got a long stretch of nada before things even think about waking up.
Honestly, the next week is a write-off for any real surfing. We’re looking at tiny, weak surf, mostly below 1ft, with junk wind. It’s a lot of cross-onshore chop and weak energy. Saturday the 23rd shows a slight bump with some 4ft swell, but the energy is weak (90) and the wind is messy, coming right onshore. That one’s a scratch, not a score. The water temp at Nantasket Beach is 70°, which is about normal for this time of year, so you won't need the thickest suit.
After that, it peters right back out again for a few more days. The swell energy just stays weak, with most readings in the low 20s. The combination of no size and poor conditions means we're looking at a solid week and a half of no good waves.
Now, let's jump ahead to Saturday the 29th. The models are hinting at something, but it’s a long way out, so treat it with caution. For the first time in ages, we see some clean conditions. With a light offshore wind and clean surf, it's the best we've got. But even then, the swell is small, just 0.7ft with a weak energy reading (8). It’s not going to be breaking, more like a glassy ankle-slasher. But hey, if you're desperate, it's the only window that looks clean. Nantasket Beach is a consistent spot, so it tends not to stay this poor for long. Forecasts can change, but right now, this is a brutal stretch.
Stay patient,
Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Sun night. Warm (max 27°C on Fri afternoon, min 17°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon morning. Warm (max 29°C on Wed afternoon, min 18°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 13 | E 13 | E 9 | E 12 | E 9 | E 9 | E 9 | E 11 | E 9 | E 9 | E 9 | ESE 4 | E 4 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 6 | SE 6 | SE 6 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 2 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 3 | 6 | 6 | 22 | 13 | 22 | 8 | 9 | 9 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | on | cross-off | cross-on | cross | cross | cross | cross-on | cross | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off |
High Tide | 1:10PM3.07m | 1:27AM3.23m | 1:57PM3.08m | 2:16AM3.09m | 2:42PM3.06m | 3:04AM2.92m | 3:27PM2.98m | 3:54AM2.73m | 4:15PM2.89m | 4:47AM2.55m | 5:05PM2.78m | 5:44AM2.40m | 5:58PM2.69m | ||||||||
Low Tide | 7:12PM-0.10m | 7:43AM-0.22m | 8:03PM-0.07m | 8:28AM-0.10m | 8:52PM0.01m | 9:12AM0.06m | 9:42PM0.11m | 9:59AM0.24m | 10:35PM0.22m | 10:48AM0.41m | 11:31PM0.33m | 11:40AM0.55m | 00:28AM0.41m | ||||||||
 |  |  | | |  | |  |  |  | | | | |  | | | | | | | |
 | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | 1 | — | — | — | — | — | 7 | 1 | 2 | — | — | — | — | — | — | 2 | — | — | — |
Temp °C | 25 | 27 | 20 | 23 | 24 | 21 | 23 | 26 | 22 | 20 | 19 | 19 | 21 | 23 | 22 | 27 | 29 | 24 | 22 | 24 | 22 |
Feels °C | 22 | 26 | 19 | 22 | 22 | 19 | 23 | 23 | 19 | 17 | 19 | 20 | 21 | 22 | 21 | 25 | 26 | 23 | 22 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | E 10 | N 3 | E 9 | NNE 4 | NNE 4 | — | NNE 3 | — | SSE 4 | E 9 | E 9 | ESE 4 | E 4 | E 4 | ESE 8 | ESE 8 | ESE 8 | ESE 6 | SE 6 | SE 6 | ESE 8 |
| kJ | 2 | 1 | 2 | 1 | 1 | — | 1 | — | 1 | 2 | 2 | 3 | 6 | 3 | 22 | 13 | 22 | 8 | 9 | 9 | 13 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 10 | — | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | — | — | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 5 | SE 9 | E 10 | E 10 | — |
| kJ | 3 | 2 | — | 2 | 2 | 2 | 2 | 2 | 1 | — | — | 3 | 6 | 6 | 13 | 6 | 2 | 3 | 2 | 2 | — |
Swell 3 Height (m) Direction Period (s) | E 10 | E 13 | — | E 12 | — | — | — | E 11 | — | — | — | SE 7 | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 3 | — | 3 | — | — | — | 2 | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | — | — | — | — | SSE 2 | — | — | ESE 4 | — | — | ENE 4 | — | — | SSE 3 | S 3 | — | — | NNE 3 |
| kJ | 3 | — | — | — | — | — | — | 1 | — | — | 1 | — | — | 3 | — | — | 3 | 4 | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 655 | 3546 | 655 | 1828 | 1954 | 1828 | 1679 | 1238 | 529 | 160 | 90 | 117 | 117 | 531 | 58 | 64 | 69 | 55 | 84 | 84 | 67 |
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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