Surf Forecasts:
Nantasket Beach surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 11PM (local time) - 2.5ft (0.8m), 7s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 5AM (local time) - 4ft (1.2m), 6s period, NE swell with 89 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 11PM (local time) - 2.5ft (0.8m), 7s period with E swell.
Best Forecast Surf Conditions for Nantasket Beach this week:
The surf forecast for Nantasket Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 11PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nantasket Beach in the next 16 days are 1.2m 6s and forecast to arrive on Tuesday (Sep 15) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Sep 16) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 16th Sep) | 2.5ft (0.8m) 7s |
| Best Surf | 11PM (Wed 16th Sep) | 2.5ft (0.8m) 7s |
| Most Powerful | 5AM (Tue 15th Sep) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's have a look at what's cookin' for Nantasket Beach over the next couple of weeks.
Honestly, I gotta start by saying it's gonna be a tough stretch. We're looking at a long run of pretty anemic surf. The first real pulse, if you can call it that, doesn't show up until Tuesday the 15th, and even then it's tiny with weak energy (50). The onshore winds will have it all chopped up. Before that, from now through Monday morning, it's flat or near-flat with barely a ripple. We're talking waist-high dribble at best.
The late-morning glass-off on Wednesday the 16th is about the only moment of peace in the first week, with a slight air and 0.6m of east swell. It's small, but glassy conditions mean you might find a groomed little crumbler. The combo swell energy is still weak (38), but it'd be clean. After that, it's back to onshore slop through the end of that week.
Now, the models are trying to show a spike around Monday the 21st of September. We'll see a jump up to 1.4m from the NE with moderate wave energy (152). That's the biggest swell of the whole run, but the trade-off is a fresh cross-onshore wind. It'll be lumpy and a bit of a battle. For the experienced crew, there might be some punchy close-outs on offer, but it won't be pretty. That energy continues into Tuesday the 22nd, but the wind stays messy.
The late-period forecast is a bit of a tease. Around Thursday the 24th of September, the swell builds again to 1.7m from the E with a groundswell period of 10 seconds. The energy readings jump way up into the moderate to strong range (767). That has real potential. Unfortunately, the wind forecast for that day is a fresh cross-onshore, which will chop it up. If that wind direction swings more offshore, we'd be in business, but as it stands, it's for the die-hards only. It'll be too big and blown out for beginners, and only the experts will find any good ones.
For the entire 16-day window, the water temp is sitting at a normal 66°F. So at least you won't need a thick suit.
To be straight with you, there's no standout day here. The cleanest surf will be that tiny, glassy window on Wednesday the 16th. For size, you gotta wait for the potential of Thursday the 24th, but the wind is the enemy. Keep an eye on that wind forecast. If it cleans up, it could be a late highlight. Otherwise, this is a classic New England late summer lull.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Sun afternoon. Warm (max 23°C on Sat afternoon, min 14°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu afternoon, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 | SE 3 | SSE 3 | E 10 | E 10 | ESE 9 | ESE 8 | ESE 8 | NE 5 | NE 5 | ENE 6 | ENE 5 | E 7 | E 7 | E 7 | E 7 | ESE 7 | E 7 | E 6 | E 12 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 3 | 5 | 8 | 7 | 8 | 13 | 13 | 37 | 57 | 51 | 22 | 46 | 70 | 52 | 36 | 36 | 23 | 7 | 11 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross | cross-on | on | on | glassy | glassy | cross-on | cross-off | cross | cross | cross-off | off | cross-off | cross-off |
High Tide | 12:43PM3.12m | 1:06AM3.07m | 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 | ||||||||
Low Tide | 6:53PM-0.12m | 7:14AM-0.06m | 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 | ||||||||
 | |  |  |  |  |  | |  | | | | | | |  | | |  | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | 6:59 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:50 | — | — | 6:47 | — |
mm | — | — | — | 8 | 13 | 1 | 5 | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | — |
Temp °C | 20 | 23 | 20 | 19 | 19 | 19 | 19 | 21 | 19 | 14 | 14 | 14 | 17 | 20 | 19 | 21 | 25 | 19 | 20 | 24 | 19 |
Feels °C | 18 | 20 | 18 | 19 | 20 | 20 | 15 | 18 | 17 | 12 | 11 | 13 | 16 | 18 | 17 | 20 | 23 | 16 | 20 | 22 | 14 |
Swell 1 Height (m) Direction Period (s) | E 10 | — | SE 3 | SE 4 | E 10 | ESE 4 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ENE 6 | ENE 5 | E 7 | E 7 | E 7 | E 7 | ESE 7 | E 7 | E 6 | E 6 | E 6 |
| kJ | 2 | — | 2 | 2 | 7 | 3 | 13 | 13 | 6 | 8 | 51 | 22 | 46 | 70 | 52 | 36 | 36 | 23 | 7 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | E 10 | E 10 | — | ESE 9 | ENE 4 | NE 4 | E 15 | E 15 | E 10 | E 9 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | ESE 6 | E 12 | E 12 |
| kJ | — | 2 | 2 | 8 | — | 8 | 3 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 3 | 3 | 3 | 3 | 4 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 3 | — | E 15 | E 15 | E 14 | — | — | — | — | — | ESE 7 | E 12 | E 9 | E 8 |
| kJ | — | — | — | — | — | — | — | 1 | — | 4 | 4 | 4 | — | — | — | — | — | 4 | 3 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | — | SE 3 | SSE 3 | SSE 4 | SE 3 | — | N 3 | — | NE 5 | NE 5 | — | — | — | — | — | — | SSE 3 | SW 2 | — | — | NE 4 |
| kJ | — | 3 | 5 | 7 | 2 | — | 2 | — | 37 | 57 | — | — | — | — | — | — | 10 | 1 | — | — | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 662 | 1237 | 529 | 58 | 117 | 340 | 108 | 58 | 108 | 523 | 1232 | 133 | 7 | 128 | 7 | 26 | 1265 | 58 | 108 | 213 | 58 |
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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