Surf Forecasts:
Nantasket Beach surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8AM (local time) - 0.5ft (0.2m), 9s period, ESE swell with 8 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 0.2m 9s and forecast to arrive on Saturday (Aug 15) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 09) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 15th Aug) | 0.5ft (0.2m) 9s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's be straight with you, the next 16 days at Nantasket Beach are looking pretty flat. We're talking about a long stretch of tiny, weak surf that’s just not going to give you much to work with. The water temp is sitting at about 67°, which is a bit colder than what we usually see this time of year, so you might want a thicker spring suit if you're getting in.
From now through the 19th of August, it's a real struggle. Swell heights are mostly stuck at 0.3ft to 1ft with periods all over the place, from a short, weak 3 seconds up to a longer 14 seconds. Even when the wind goes offshore or glassy, the energy just isn't there. The combined energy numbers are really low, often in the single digits (3 to 11), just confirming there's no real push. You’ll see a few moments where the wind goes clean, like the morning of the 10th (glassy) or the 14th and 15th with offshore breezes, but the swell is so small it’s barely a ripple.
Things do try to pick up a little towards the end of the run. Around the 19th and 20th of August, we finally see a small bump in swell, with heights hitting 2ft. The wind switches offshore on the morning of the 20th, with a clean, gentle breeze from the WNW, and the swell is coming from the SE with a period of 7 seconds. The combined energy climbs to 32, which is still weak but at least a step up from the dead flat days. It’s the best of a bad lot, but honestly, for a beginner, the 2ft is fine, and the wind is good. It’s still not going to be a day to write home about.
Saturday, the 22nd, sees energy bump up with a combined reading of 41, but the swell is still only 1ft and the wind is onshore from the E, making it choppy and messy. The last day on the books, Sunday the 23rd, has a glassy morning with a 0.7ft, 12-second period swell from the east showing a combined energy of 23, but the wind goes light cross-onshore in the afternoon.
For a spot that’s consistent, this is a frustrating blank run. It’s the kind of forecast that makes you think about tuning up your gear or checking the long-range models again next week. The setup is a beach, so with the bigger onshore winds and tiny swell, it’s honestly more interesting for a kite than a paddleboard right now.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 33°C on Sun afternoon, min 22°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Thu night. Warm (max 31°C on Tue afternoon, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 8 | E 9 | E 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 9 | E 9 | N 4 | E 9 | E 14 | E 14 | E 14 | E 10 | E 13 | E 10 | E 13 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 2 | 3 | 2 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | off | off | cross-off | cross-off | glassy | cross | off | cross-off | cross-off | glassy | cross-on | cross-on | cross-off | cross | cross-off | off | cross-off | off | cross-off |
High Tide | 7:41PM3.08m | 8:30AM2.55m | 8:47PM3.14m | 9:35AM2.65m | 9:50PM3.23m | 10:34AM2.78m | 10:48PM3.30m | 11:28AM2.90m | 11:43PM3.33m | 12:20PM3.00m | 00:36AM3.31m | 1:10PM3.07m | 1:27AM3.23m | ||||||||
Low Tide | 1:20PM0.30m | 2:17AM0.03m | 2:25PM0.27m | 3:21AM-0.05m | 3:30PM0.19m | 4:21AM-0.16m | 4:29PM0.08m | 5:15AM-0.25m | 5:25PM-0.02m | 6:07AM-0.30m | 6:20PM-0.08m | 6:56AM-0.29m | 7:12PM-0.10m | ||||||||
 |  |  | | |  | | |  | | | |  |  | | | |  | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — |
mm | — | — | 2 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 12 | — | — | — |
Temp °C | 29 | 31 | 24 | 30 | 33 | 30 | 27 | 30 | 28 | 28 | 31 | 28 | 20 | 19 | 19 | 26 | 29 | 24 | 23 | 27 | 24 |
Feels °C | 30 | 33 | 27 | 30 | 32 | 28 | 27 | 30 | 27 | 26 | 29 | 27 | 19 | 17 | 19 | 26 | 27 | 24 | 20 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 9 | E 8 | E 8 | E 9 | E 8 | E 8 | SE 3 | SE 4 | E 8 | E 8 | E 7 | NNE 4 | E 8 | — | E 10 | ESE 2 | — | SSE 3 | E 9 | E 9 |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | 2 | 1 | — | 1 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | — | SE 7 | SE 7 | — | E 9 | E 8 | E 8 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 7 | E 10 | E 10 | E 10 | SE 5 | SE 4 |
| kJ | 2 | 2 | — | 2 | 2 | — | 2 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 9 | — | E 10 | E 10 | E 9 | — | — | E 9 | E 14 | E 14 | E 14 | E 7 | E 13 | SE 4 | E 13 | E 12 |
| kJ | — | — | — | — | — | 2 | — | 2 | 2 | 2 | — | — | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NW 3 | — | N 4 | — | NNE 3 | — | — | — | — | — | WNW 2 | WNW 2 |
| kJ | — | — | — | — | — | — | — | — | — | 2 | — | 2 | — | 1 | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 340 | 336 | 93 | 113 | 336 | 117 | 662 | 340 | 213 | 160 | 2511 | 1045 | 655 | 356 | 378 | 844 | 2674 | 117 | 67 | 113 | 133 |
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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