Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 1 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
20.4°C
0.8° 

Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nantasket Beach surf forecast from 29 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 2AM (local time) - 2.5ft (0.8m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 2PM (local time) - 3ft (0.9m), 9s period, ENE swell with 135 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 2AM (local time) - 2.5ft (0.8m), 8s 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 Saturday (Sep 05) at 2AM. The primary swell is predicted to be 0.8m and 8s period. 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 0.9m 9s and forecast to arrive on Saturday (Sep 05) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Sunday (Aug 30) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 5th Sep)2.5ft (0.8m) 8s
Best Surf 2AM (Sat 5th Sep)2.5ft (0.8m) 8s
Most Powerful 2PM (Sat 5th Sep)3ft (0.9m) 9s

Table - best surf conditions forecast for Nantasket Beach over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's not beat around the bush: the next couple of weeks are looking bleak for a proper surf. The charts are showing a whole lot of nothing for a while, and even when there’s a bump, the wind’s usually gonna mess it up.

The long and short of it is, we’ve got a serious dry spell on our hands. From now through the 4th of September, there’s just no surf to speak of. It’s a flat spell that’ll have you checking the buoys out of habit more than hope. A couple of times it looks like it might try and kick up, but the energy is weak and the direction is all wrong.

We finally see a little life on Saturday the 5th. We’re looking at Nantasket Beach, and it’s still pretty ordinary, but at least it’s something. That morning, you’ve got a touch of swell at 3ft from the ENE, and it’s holding together with a light cross-off breeze. The energy is still weak, reading 94, but it’s clean. The swell period is short, only 8 seconds, so it’ll be a bit soft and crumbly, but you can get a slide. The wave comment even says “surfable waves but very ordinary conditions,” which is about the best we’re gonna get.

That Sunday the 6th has a similar story, with 3ft from the ENE again and light winds. The energy is moderate at 114 and it's clean in the morning. By the afternoon, the wind goes totally glassy, which is a bonus, but the swell’s still nothing to write home about.

Monday the 7th, the swell bumps up a touch to 3ft, but the period drops to 7 seconds, so it’s gonna be a bit lumpy and disorganized. The morning is glassy with a light offshore breeze, and the energy is up to 177, which is the most we’ve seen all week. It’s the pick of the litter so far, but it’s still not great. Nantasket is an exposed beach, so a short-period ENE swell like this is going to be pretty walled-up and soft. It’s not going to be a rippable day, more of a longboard and log day for sure.

Then we go flat again through the 11th. Just a whole lot of nothing. The 12th of September shows a bit of a pulse again, but it’s still looking short-period and junky with no real quality to it.

So, here’s the bottom line. If you’re desperate, the early morning of Monday the 7th is your best bet. It’s got the most size and energy, and the wind is clean. Just don’t expect any gems. The water temp is sitting around 69°, which is about 1° warmer than usual for this time of year, so it’s still pretty comfortable in a springsuit. The rest of the window is a write-off. You might be better off waiting for the next system to come through and hoping for a better wind forecast.

This is Rusty, signing off. Keep your board waxed and your expectations low.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Tue morning. Warm (max 29°C on Sun afternoon, min 18°C on Tue morning). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 28mm), heaviest during Wed night. Warm (max 21°C on Thu night, min 15°C on Fri morning). Mainly fresh winds.

Sat
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
8
0.3
ESE
6
0.2
ESE
8
0.2
ESE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.5
SE
4
0.4
SE
4
0.2
ESE
11
0.2
ESE
10
0.5
ESE
5
0.8
SE
5
0.8
ESE
6
0.5
ESE
7
0.7
NNE
5
0.5
NE
5
0.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
17
7
6
6
3
3
3
3
3
9
5
11
10
12
31
49
28
22
13
87
Wind (km/h)
15
ESE
10
WSW
15
SW
20
WSW
15
WNW
10
ENE
20
SE
10
SSW
20
ESE
25
ESE
15
ESE
20
ESE
15
ESE
15
SE
25
SSE
20
SE
20
WNW
30
N
20
NNE
10
NNW
Wind State
on
off
cross-off
cross-off
off
on
cross-on
cross-off
on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-off
cross
cross
cross-off
High Tide
1:02AM3.00m
1:24PM2.97m
1:43AM2.97m
2:03PM3.04m
2:26AM2.91m
2:44PM3.09m
3:13AM2.81m
3:30PM3.09m
4:04AM2.70m
4:22PM3.06m
5:03AM2.59m
5:21PM3.02m
Low Tide
6:50PM0.09m
7:12AM-0.01m
7:32PM0.02m
7:50AM0.00m
8:15PM-0.03m
8:31AM0.04m
9:02PM-0.04m
9:15AM0.11m
9:53PM-0.00m
10:05AM0.21m
10:50PM0.05m
11:02AM0.30m
11:53PM0.11m
clear
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
heavy rain
light rain
light rain
cloud
cloud
mod rain
mod rain
light rain
mod rain
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:22
7:21
7:19
7:17
7:15
7:14
7:13
 mm
22
3
1
7
8
1
8
Temp °C
22
21
25
29
22
21
23
21
19
19
17
19
20
19
18
20
21
16
19
19
Feels °C
20
19
22
25
20
21
21
20
20
18
15
17
18
18
16
20
22
10
16
17
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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