Surf Forecasts:
Nantasket Beach surf forecast from 5 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11PM (local time) - 3ft (0.9m), 7s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 8AM (local time) - 4.5ft (1.4m), 7s period, NE swell with 194 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11PM (local time) - 3ft (0.9m), 7s period with ENE 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 Sunday (Sep 06) at 11PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m and 9s. 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 1.4m 7s and forecast to arrive on Sunday (Sep 06) at 8AM. 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 3s period and expected on Wednesday (Sep 09) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 6th Sep) | 3ft (0.9m) 7s |
| Best Surf | 11PM (Sun 6th Sep) | 3ft (0.9m) 7s |
| Most Powerful | 8AM (Sun 6th Sep) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Nantasket Beach over the next 16 days.
The Lowdown
Alright folks, it’s Rusty checkin’ in with the long-range look for Nantasket Beach. Gotta be straight with you – this stretch of September is lookin’ pretty flat and disappointing overall. We’ve got a real dry spell on our hands.
There’s a whole lot of nothin’ on the table for the first several days. The early part of the window is tiny windswell with northeast winds messin’ things up, makin’ for poor surf conditions. It’s a slow grind.
Now, we finally get a little flicker of life on Sunday, September 6th. We’re seein’ some waist-high swell start to push in, around 4 ft from the ENE, with a weak period of 7 seconds. The combined energy is a modest 151 – enough to get a few rides in. The real good news here is the wind. Sunday morning goes clean under a NNW cross-off breeze, and then Sunday afternoon? Absolute glass. WSW winds at just 3 mph. That’s the standout session. The water temp is sittin’ right around average for this time of year at 68°F, so nothin’ wild there.
Don’t get too excited, because Monday the 7th drops back down into knee-to-waist high slop. While the winds stay clean and light, the swell just doesn’t have the juice. From there, we hit the wall. Tuesday the 8th through to the middle of the month is a real bust – tiny, weak energy all the way. We’re talkin’ a solid week-plus of sub-par conditions where you’d struggle to find anything rideable.
We do see a slight pulse of energy return around Thursday, September 17th. Swell bumps back up to a consistent 3 ft from the ENE, with the combined energy on the afternoon hittin’ 110 – moderate at best. Winds stay light and clean (cross-off), so the waves will look okay. It’s surfable, but it’s very ordinary. This is the closest thing we get to a decent long-range bet.
Wednesday, September 16th morning is worth a mention for the glassy conditions with a 3 ft swell from the NE, but the combined energy is weak at 54, and the period is short. It’s a tease.
Overall, this is a classic Nantasket September slow-down. The only true standouts are those glassy windows on the 6th and maybe the 17th, but neither is gonna light the world on fire. If you’re desperate, keep an eye on those cleaner days for a longboard.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Warm (max 24°C on Mon afternoon, min 14°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 26°C on Wed afternoon, min 11°C on Thu night). Winds increasing (light winds from the SSW on Tue night, fresh winds from the SW by Wed night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 7 | ENE 5 | ENE 6 | ENE 7 | ENE 7 | NE 7 | E 10 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | SE 9 | SE 10 | E 10 | NE 6 | NE 5 | NE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 23 | 52 | 97 | 155 | 127 | 54 | 48 | 64 | 43 | 26 | 25 | 14 | 6 | 6 | 2 | 3 | 4 | 2 | 61 | 41 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | on | cross-off | cross-off | glassy | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-on | glassy |
High Tide | 6:24PM2.99m | 7:13AM2.50m | 7:31PM2.99m | 8:21AM2.56m | 8:39PM3.04m | 9:25AM2.69m | 9:43PM3.11m | 10:22AM2.84m | 10:39PM3.17m | 11:12AM2.97m | 11:30PM3.19m | 11:59AM3.08m | 00:19AM3.15m | ||||||||
Low Tide | 12:04PM0.36m | 00:58AM0.12m | 1:09PM0.37m | 2:05AM0.10m | 2:17PM0.31m | 3:10AM0.02m | 3:23PM0.20m | 4:08AM-0.07m | 4:21PM0.07m | 4:59AM-0.15m | 5:14PM-0.04m | 5:46AM-0.17m | 6:05PM-0.11m | ||||||||
 |  |  |  |  |  | | |  | | | | |  |  | | | | | | | |
 | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 7:10 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 16 | 19 | 18 | 20 | 24 | 24 | 21 | 22 | 21 | 23 | 26 | 23 | 24 | 25 | 21 | 14 | 20 | 17 |
Feels °C | 16 | 17 | 17 | 14 | 17 | 17 | 18 | 22 | 21 | 20 | 21 | 20 | 22 | 24 | 20 | 20 | 21 | 17 | 10 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | ENE 6 | ENE 7 | ENE 7 | NE 7 | NE 7 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 8 | E 9 | SE 4 | SSE 4 | SE 9 | SE 10 | E 10 | E 10 | NE 5 | NE 6 |
| kJ | 23 | 22 | 55 | 155 | 127 | 54 | 35 | 64 | 43 | 26 | 25 | 14 | 6 | 2 | 4 | 3 | 4 | 2 | 2 | 41 | 15 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | ENE 9 | E 10 | NE 6 | NE 4 | — | NE 4 | — | E 10 | E 9 | E 8 | SE 5 | SE 5 | SE 6 | — | E 11 | E 11 |
| kJ | — | — | — | — | — | 28 | 48 | 15 | 3 | — | 1 | — | 2 | 6 | 1 | 1 | 1 | 1 | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 9 | SE 9 | SE 9 | E 8 | — | E 9 | — | — | E 10 | E 9 | E 8 | — | — | — | SE 6 | E 11 |
| kJ | — | — | — | — | — | 3 | 3 | 3 | 1 | — | 1 | — | — | 2 | 2 | 1 | — | — | — | 1 | 2 |
Wind waves Height (m) Direction Period (s) | NE 3 | ENE 5 | ENE 6 | — | — | W 2 | — | — | NNW 2 | N 3 | — | — | — | — | SSW 3 | W 3 | WNW 3 | NW 3 | NE 6 | — | — |
| kJ | 5 | 52 | 97 | — | — | 1 | — | — | 1 | 1 | — | — | — | — | 7 | 4 | 3 | 2 | 61 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 534 | 2691 | 28 | 0 | 0 | 0 | 0 | 0 | 18 | 531 | 950 | 746 | 784 | 1230 | 1104 | 75 | 133 | 181 | 1009 | 1086 | 1130 |
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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