Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 7 am 23 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
17.6°C
0.4° 

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 23 Sep 2026:

  • Best quality surf: Saturday 26 Sep, 11AM (local time) - 16ft (5.0m), 11s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 26 Sep, 11AM (local time) - 16ft (5.0m), 11s period, ENE swell with 5,653 kJ wave energy.
  • Next surfable swell (1★+): Saturday 26 Sep, 11AM (local time) - 16ft (5.0m), 11s 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 26) at 11AM. The primary swell is predicted to be 5.0m and 11s 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 5.0m 11s and forecast to arrive on Saturday (Sep 26) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sat 26th Sep)16ft (5.0m) 11s
Best Surf11AM (Sat 26th Sep)16ft (5.0m) 11s
Most Powerful11AM (Sat 26th Sep)16ft (5.0m) 11s

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


Short Range Forecast

Heavy rain (total 20mm), heaviest during Fri night. Very mild (max 14°C on Wed morning, min 12°C on Thu morning). Winds increasing (moderate winds from the NE on Thu night, strong winds from the NNE by Fri night).

Days 4-6 Weather Summary

Heavy rain (total 55mm), heaviest during Sat night. Very mild (max 15°C on Sun afternoon, min 11°C on Sat morning). Winds decreasing (fresh winds from the N on Sat morning, light winds from the SE by Mon morning).

Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
AM
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
!
!
!
!
!
1
1
2
1
1
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)
1.7
E
7
1.8
E
8
2
E
8
1.9
E
9
2
E
10
2.4
ENE
11
2.5
E
12
3
E
12
4
ENE
11
5
ENE
11
4.5
ENE
11
3
ENE
9
3.5
NE
9
3
NE
9
1.9
NE
7
1.8
NE
7
2
NNE
7
1.2
NE
7
0.6
E
8
0.5
E
8
0.6
ENE
8
Wave Graph
Metric surfscale
Energy kJ
262
367
553
588
755
1347
2020
2373
3888
5653
4182
1301
1655
1325
362
363
412
135
48
33
51
Wind (km/h)
30
ENE
25
NE
20
NE
30
NE
25
NE
25
NNE
35
NNE
40
NE
40
NNE
35
N
30
NNW
25
NNW
35
NNW
10
SSW
15
SE
5
ENE
10
N
10
NW
5
NNW
0
ESE
10
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
on
cross
cross-off
cross-off
glassy
cross-off
High Tide
9:38AM2.50m
9:48PM2.79m
10:18AM2.65m
10:30PM2.88m
10:56AM2.81m
11:11PM2.96m
11:32AM2.96m
11:52PM3.00m
12:11PM3.09m
00:35AM3.01m
12:50PM3.19m
1:19AM2.98m
1:33PM3.25m
2:06AM2.91m
Low Tide
3:33PM0.45m
4:05AM0.24m
4:17PM0.30m
4:43AM0.14m
4:59PM0.14m
5:20AM0.05m
5:40PM0.00m
5:58AM0.00m
6:23PM-0.12m
6:38AM-0.02m
7:07PM-0.20m
7:20AM-0.00m
7:53PM-0.22m
clear
clear
clear
clear
clear
part cloud
cloud
cloud
heavy rain
mod rain
light rain
heavy rain
light rain
mod rain
heavy rain
cloud
cloud
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:33
6:33
6:35
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:37
6:36
6:34
6:31
6:30
6:29
 mm
20
9
3
15
4
9
15
Temp °C
14
14
13
13
13
13
13
14
13
12
12
13
13
15
14
15
15
14
16
20
20
Feels °C
9
8
9
8
8
9
7
8
5
5
5
9
8
14
11
15
14
12
15
20
19
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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