Surf Forecasts:
Nantasket Beach surf forecast from 26 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 8PM (local time) - 1.5ft (0.5m), 10s period, E swell with 46 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 0.5m 10s and forecast to arrive on Wednesday (Aug 26) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Wednesday (Aug 26) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Wed 26th Aug) | 1.5ft (0.5m) 10s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s have a look at what’s cookin’. I gotta be honest, it’s gonna be a quiet one.
We’re starting at the end of August and heading into the first half of September, and the story is pretty flat for a good long while. Water temp at the start is running about normal for this time of year, around 68°.
The first stretch is basically a whole lot of nothing. From Wednesday the 26th all the way through the end of the month, the swell is tiny. We’re talking ankle-snappers, mostly 0.5 ft to 1 ft, with a jump to maybe 3 ft on the morning of Saturday the 29th from the NE, but with a short, weak period. That morning has just 78 of combined energy, which is basically nothing. Wind is mostly junk, either cross or onshore, and while a few mornings are glassy, there’s no push in the water at all.
September rolls in with more of the same flat spell. Tuesday the 1st and Wednesday the 2nd are total duds. Then, finally, on Wednesday the 2nd of September, we get a pulse of 3 ft from the NNE, but it’s onshore wind with a short 6-second period. Not good. It gets worse before it gets better.
The main event arrives on Thursday the 3rd of September. The swell jumps up to a solid 6 ft to 7 ft from the ENE. The combined energy goes from 352 up to a big 844 – that’s a lot of water moving. This is proper power for Nantasket Beach. But the nasty part is the wind, staying cross and cross-onshore at 12 mph. On an exposed beach break, that’s going to turn it into a messy, choppy mess. If you’re a strong paddler, you might find some raw power, but honestly, that looks like a much better day for the kite surfers than for a clean surf session.
The swell backs down after that peak, dropping to 4 ft and then 3 ft over the next few days, but the onshore wind hangs around. By the time the wind finally cleans up on Thursday the 10th of September, with a solid offshore breeze, the swell has completely died to a measly 0.7 ft.
So, I’m telling you straight, there’s no standout session here. No hidden gem. That big day on the 3rd is a blown-out mess. The long dry spell at the start is tough. It’s one of those periods where you just gotta wait it out.
Keep the board waxed and hope the forecast changes.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Fri afternoon. Warm (max 29°C on Fri afternoon, min 18°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sun afternoon, min 17°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | ESE 8 | E 10 | E 9 | E 8 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | NE 5 | NE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 13 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 29 | 38 | 37 | 25 | 24 | 26 | 12 | 12 | 22 | 20 | 13 | 7 | 7 | 7 | 3 | 3 | 2 | 3 | 4 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | glassy | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross | cross-off | cross | cross-off |
High Tide | 10:58AM2.54m | 11:04PM2.90m | 11:35AM2.65m | 11:43PM2.96m | 12:11PM2.76m | 00:22AM3.00m | 12:48PM2.87m | 1:02AM3.00m | 1:24PM2.97m | 1:43AM2.97m | 2:03PM3.04m | 2:26AM2.91m | 2:44PM3.09m | 3:13AM2.81m | |||||||
Low Tide | 4:49PM0.39m | 5:23AM0.14m | 5:30PM0.28m | 5:59AM0.07m | 6:10PM0.18m | 6:35AM0.02m | 6:50PM0.09m | 7:12AM-0.01m | 7:32PM0.02m | 7:50AM0.00m | 8:15PM-0.03m | 8:31AM0.04m | 9:02PM-0.04m | ||||||||
 |  |  | | |  |  | |  | | |  | | | | | | |  |  |  | |
 | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 7:28 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — |
mm | — | — | — | — | — | 1 | 3 | 4 | 1 | — | — | — | — | — | — | — | — | — | 4 | 18 | 8 |
Temp °C | 23 | 25 | 23 | 26 | 28 | 24 | 26 | 29 | 25 | 19 | 21 | 20 | 25 | 30 | 25 | 22 | 21 | 19 | 20 | 20 | 20 |
Feels °C | 23 | 24 | 22 | 25 | 25 | 24 | 28 | 31 | 27 | 18 | 19 | 19 | 23 | 27 | 23 | 21 | 20 | 18 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | E 10 | E 9 | E 8 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | NE 5 | NE 4 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | NNE 3 |
| kJ | 24 | 29 | 38 | 37 | 25 | 24 | 26 | 12 | 12 | 11 | 20 | 5 | 7 | 7 | 7 | 3 | 3 | 2 | 3 | 3 | 1 |
Swell 2 Height (m) Direction Period (s) | E 13 | ESE 7 | — | — | — | E 10 | E 10 | ESE 5 | E 10 | E 10 | ESE 7 | ESE 8 | NE 4 | — | — | E 8 | — | — | — | E 13 | SE 9 |
| kJ | 3 | 10 | — | — | — | 2 | 2 | 2 | 2 | 2 | 10 | 13 | 1 | — | — | 1 | — | — | — | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 10 | — | — | — | E 9 | — | E 8 | — | — | — | — | — | E 13 | E 12 |
| kJ | — | — | — | — | — | — | — | 2 | — | — | — | 1 | — | 1 | — | — | — | — | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NNW 3 | — | — | — | SSE 4 | SSE 4 | SE 4 | SE 4 | — | NE 5 | — | — | — | SSE 3 | — | — | — | — | — | NE 3 | — |
| kJ | 1 | — | — | — | 6 | 3 | 4 | 6 | — | 22 | — | — | — | 2 | — | — | — | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 58 | 961 | 12 | 12 | 961 | 12 | 55 | 12 | 55 | 67 | 160 | 160 | 655 | 58 | 844 | 165 | 128 | 1236 | 1236 | 1236 | 228 |
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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