Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 1 pm 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
18.9° C

Slightly warmer than usual

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 5 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 2AM (local time) - 3.5ft (1.1m), 5s period, NE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 11PM (local time) - 5.5ft (1.7m), 8s period, E swell with 328 kJ wave energy.
  • Next surfable swell (1★+): Saturday 11 Jul, 2AM (local time) - 3.5ft (1.1m), 5s period with NE 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 (Jul 11) at 2AM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.1m and 10s. 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 1.7m 8s and forecast to arrive on Tuesday (Jul 07) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 09) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 11th Jul)3.5ft (1.1m) 5s
Best Surf 2AM (Sat 11th Jul)3.5ft (1.1m) 5s
Most Powerful11PM (Tue 7th Jul)5.5ft (1.7m) 8s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let's just get it straight: the next 16 days at Nantasket Beach are looking pretty bleak for any real surfing. There are no good surf options on the table right now. This is a blank run, plain and simple, and honestly, for this stretch of coast, that's not totally unusual when the conditions just don't line up.

We're looking at a long gap here. From today through most of the period, we're stuck with tiny, weak swell and nearly constant cross-onshore winds that just chop everything up. The few times the wind goes offshore or cross-off, the waves are practically flat.

The only time we see even a pulse of energy is around Tuesday, July 7th, when the swell bumps up to 6ft from the E/ENE. The combined energy hits 598 (moderate) and 404, but the period is a short 7 seconds and it's blowing 18-21 mph cross-onshore. The conditions are rough. That size with those onshores makes it a messy, lumpy affair that's better suited for kite surfing than a paddle session.

After that, it fades back to tiny, weak stuff. There are a few clean windows from Thursday, July 9th through the weekend, but the swell drops to 2ft or less. Not worth the wetsuit.

So to sum it up: there isn't a single standout in this forecast. The whole 16-day run is a write-off. Keep the board in the car for a better day down the road. Forecasts can change, but for now, this stretch looks quiet.

Rusty

Short Range Forecast

Heavy rain (total 32mm), heaviest during Mon night. Warm (max 25°C on Sun afternoon, min 15°C on Tue night). Winds increasing (light winds from the SE on Sun night, fresh winds from the ENE by Tue morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 31°C on Thu afternoon, min 19°C on Wed night). Wind will be generally light.

Sun
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
E
10
0.2
ESE
9
0.2
E
10
0.6
ESE
4
1
ESE
5
1.6
E
6
1.8
E
7
1.6
ENE
7
1.2
E
7
1.1
E
7
0.9
E
8
0.7
E
7
0.6
E
7
0.4
E
7
0.3
E
7
0.2
E
7
1.1
NE
5
0.9
NE
5
0.7
ENE
5
0.4
ENE
5
0.4
E
7
Wave Graph
Metric surfscale
Energy kJ
3
8
9
12
51
215
312
259
156
131
89
53
38
16
9
4
60
38
22
9
15
Wind (km/h)
15
ESE
15
SW
10
SE
20
ESE
25
E
30
ENE
25
ENE
20
NNE
10
NE
15
SE
20
SW
20
SW
25
SSW
20
SW
10
NNE
10
E
15
NNW
15
NE
15
ESE
15
SW
15
SW
Wind State
cross-on
cross-off
cross-on
cross-on
on
on
cross-on
cross
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross
on
cross-off
cross-on
cross-on
cross-off
cross-off
High Tide
3:50PM2.71m
4:01AM2.77m
4:33PM2.79m
4:51AM2.71m
5:21PM2.87m
5:45AM2.65m
6:11PM2.97m
6:42AM2.62m
7:04PM3.06m
7:42AM2.60m
8:01PM3.15m
8:45AM2.63m
9:01PM3.24m
9:48AM2.70m
Low Tide
9:52PM0.36m
10:15AM0.16m
10:42PM0.31m
11:01AM0.18m
11:36PM0.25m
11:51AM0.21m
00:33AM0.17m
12:44PM0.23m
1:31AM0.08m
1:41PM0.24m
2:33AM-0.03m
2:41PM0.21m
3:35AM-0.15m
part cloud
cloud
cloud
light rain
heavy rain
light rain
light rain
part cloud
clear
clear
clear
clear
clear
clear
cloud
cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
5:15
5:16
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
8:22
8:21
8:21
8:20
8:20
 mm
3
24
4
1
Temp °C
25
23
18
18
16
17
17
17
19
24
23
28
31
26
26
23
21
23
25
23
25
Feels °C
22
21
17
18
14
14
13
14
19
23
22
26
29
25
26
22
23
19
21
20
23
Swell 1
Height (m)
Direction
Period (s)
0.1
SE
8
0.2
ESE
3
0.2
E
10
0.2
E
10
0.1
E
10
1.4
E
8
1.2
E
7
1.1
E
7
0.9
E
8
0.7
E
7
0.6
E
7
0.4
E
7
0.3
E
7
0.2
E
7
0.1
E
10
0.1
E
10
0.7
ENE
5
0.4
ENE
5
0.4
E
7
Energy kJ
3
1
7
8
2
217
156
131
89
53
38
16
9
4
2
2
22
7
15
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
9
0.2
SSE
5
0.1
E
10
0.1
E
10
0.2
ESE
10
0.1
E
10
Energy kJ
8
3
2
2
9
2
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.1
SE
10
0.1
SE
10
0.2
ESE
6
Energy kJ
2
4
4
3
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
3
0.5
SE
4
0.6
ESE
4
1
ESE
5
1.6
E
6
1.8
E
7
1.6
ENE
7
0.3
SW
2
0.4
SSW
3
0.4
SW
3
0.3
NNE
2
1.1
NE
5
0.9
NE
5
Energy kJ
2
9
12
51
215
312
259
1
2
2
1
60
38
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
534
439
349
470
415
834
276
28
28
32
58
26
64
64
98
117
0
117
128
113
160
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
1
3
2
1
3
2
3
3
2
2
2
2
2
2
2
1
2
2
2
3
Header Global
Rating
(10 max)
6
4
8
7
5
5
9
8
9
9
5
5
6
5
8
5
5
8
6
5
5
  • 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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