Surf Forecasts:
Nantasket Beach surf forecast from 13 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 2AM (local time) - 3.5ft (1.1m), 6s period, NE swell with 79 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 1.1m 6s and forecast to arrive on Tuesday (Sep 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Sunday (Sep 20) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Tue 15th Sep) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. For this stretch of coast, we’re looking at Nantasket Beach. I won’t lie to you, the first week is a tough slog. It’s a long wait for something that actually feels like surfing.
The pattern starts off flat and messy. Most of the first week is a write-off with tiny, wind-chopped slop. We’re talking about a real dry spell from now through to the end of the following week. There’s a small pulse trying to build around the 18th of September, with some chest-high swell showing up Friday morning, but it’s coming with a nasty onshore wind and a short, weak period. The wave energy is only reading 79 (weak), and the wind is just wrecking any chance of a decent shape. That’s a session for the kite crew, not for paddlers. Don’t bother.
We do finally get a break in the clouds towards the very end of the run. The standout window arrives on Saturday the 26th and Sunday the 27th. This is where it gets interesting. Saturday morning we get a decent offshore breeze out of the West, cleaning up a waist to chest-high swell. The wind stays clean through the day, and by Sunday we hit the real sweet spot. Sunday morning at Nantasket Beach is the pick of the whole forecast. The swell is a consistent 3 ft from the East with a longer 10-second period, that’s a nice groundswell building in. The combined energy jumps right up to 162 (moderate), so there’s some proper push in the water. With the WSW offshore breeze holding, the conditions will be glassy and clean. This is the session to circle. Expect some fun lines, though with a longer period, keep an eye on it at a beach break; it might like a bit more angle. Crowds are “sometimes” possible here, but on a day this good, expect some company.
One thing about this spot right now – the water temp is sitting at 66°, which is right about normal for this time of year. No weird anomalies to worry about, just your standard fall cool-down.
So, to wrap it up: sit tight through the early junk. The only true standout is the morning of Sunday the 27th. That’s your best bet for clean, offshore conditions and a proper wave. It’s a week and a half away, so keep an eye on the charts, but as of now, that’s the one.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Sun afternoon. Warm (max 22°C on Mon afternoon, min 13°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Thu afternoon. Warm (max 24°C on Wed afternoon, min 15°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 10 | E 10 | E 9 | ESE 9 | ESE 8 | NE 6 | NE 5 | ENE 6 | ENE 5 | E 7 | E 6 | E 7 | E 7 | E 7 | E 6 | ENE 6 | ENE 6 | E 6 | E 6 | ESE 7 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 7 | 7 | 15 | 13 | 79 | 38 | 42 | 15 | 14 | 7 | 27 | 27 | 25 | 29 | 74 | 60 | 33 | 30 | 47 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | cross-off | cross | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | on | on | cross |
High Tide | 1:26PM3.12m | 1:52AM2.95m | 2:08PM3.07m | 2:36AM2.80m | 2:49PM2.97m | 3:22AM2.64m | 3:33PM2.86m | 4:12AM2.49m | 4:21PM2.74m | 5:06AM2.36m | 5:15PM2.64m | 6:03AM2.28m | 6:12PM2.58m | ||||||||
Low Tide | 7:39PM-0.09m | 7:55AM0.06m | 8:24PM-0.01m | 8:37AM0.21m | 9:10PM0.10m | 9:21AM0.37m | 9:58PM0.23m | 10:08AM0.52m | 10:50PM0.36m | 10:59AM0.64m | 11:47PM0.45m | 11:55AM0.70m | 00:44AM0.50m | ||||||||
 |  |  |  |  |  | | |  | | | | | |  | | | | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:50 | — | — | 6:47 | — | — | 6:45 | — |
mm | 9 | 26 | 1 | — | — | — | — | — | — | — | — | — | — | 7 | 1 | — | — | — | — | — | — |
Temp °C | 19 | 19 | 19 | 19 | 22 | 18 | 14 | 15 | 14 | 18 | 24 | 21 | 23 | 18 | 15 | 16 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 19 | 21 | 22 | 14 | 18 | 13 | 11 | 13 | 12 | 16 | 22 | 19 | 23 | 18 | 13 | 13 | 13 | 14 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 4 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ENE 6 | ENE 5 | E 7 | E 6 | E 7 | E 7 | E 7 | E 6 | E 12 | ENE 6 | E 6 | E 6 | ESE 7 | E 7 |
| kJ | 8 | 7 | 5 | 15 | 13 | 7 | 8 | 42 | 15 | 14 | 7 | 27 | 27 | 25 | 29 | 3 | 42 | 33 | 30 | 47 | 22 |
Swell 2 Height (m) Direction Period (s) | — | — | E 9 | — | — | E 15 | E 15 | E 15 | E 9 | NE 5 | E 7 | E 13 | E 13 | E 12 | E 12 | E 9 | E 12 | E 12 | E 12 | E 11 | E 11 |
| kJ | — | — | 7 | — | — | 4 | 4 | 4 | 2 | 1 | 4 | 3 | 3 | 3 | 3 | 2 | 11 | 11 | 3 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 6 | — | — | — | — | E 15 | E 14 | E 9 | E 13 | — | — | — | — | — | E 9 | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | 4 | 4 | 2 | 4 | — | — | — | — | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | E 3 | — | NNW 3 | N 4 | NE 6 | NE 5 | — | — | — | SSE 3 | — | — | NNE 4 | NE 5 | ENE 6 | ENE 6 | — | — | SSE 4 | S 5 |
| kJ | 2 | 6 | — | 3 | 4 | 79 | 38 | — | — | — | 1 | — | — | 19 | 18 | 74 | 60 | — | — | 13 | 21 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 241 | 117 | 340 | 133 | 67 | 64 | 653 | 653 | 549 | 340 | 961 | 58 | 12 | 181 | 531 | 67 | 653 | 55 | 1237 | 1838 | 26 |
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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