Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 7 pm 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
20.0° C
1.7° 

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 8 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 11PM (local time) - 3.5ft (1.0m), 8s period, E swell with cross-offshore winds.
  • Most powerful swell: Wednesday 8 Jul, 8AM (local time) - 5.5ft (1.7m), 7s period, ENE swell with 297 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 11PM (local time) - 3.5ft (1.0m), 8s 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 (Jul 08) at 11PM. The primary swell is predicted to be 1.0m 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 1.7m 7s and forecast to arrive on Wednesday (Jul 08) 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 0.5m 3s period and expected on Thursday (Jul 09) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 8th Jul)3.5ft (1.0m) 8s
Best Surf11PM (Wed 8th Jul)3.5ft (1.0m) 8s
Most Powerful 8AM (Wed 8th Jul)5.5ft (1.7m) 7s

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


Alright, Rusty here. Let’s take a look at what’s cooking for Nantasket Beach over the next couple of weeks.

Straight up, it’s a lean run. There’s some small windows where you might get wet, but nothing that’s gonna have you calling in sick. The forecast is pretty flat for long stretches, especially through the middle and into the third week.

The only time we see anything surfable comes Thursday the 9th of July. Thursday morning is your best bet, with a little 3ft east swell rolling in at 8 seconds. It’s small, but the wind is offshore from the WSW, light breeze, and it’s clean. The combined energy is weak (72). Don’t expect much push, but for a summer knee-to-waist high session with nobody around, it’s got a bit of charm. Thursday afternoon sees the swell drop even more to 2ft, and the wind shifts to a cross-off from the SSW, still clean but smaller.

After that, it’s a long dry spell. From Friday the 10th right through to Wednesday the 22nd of July, the swell barely reaches 2ft at its best, and most days it’s hovering around 0.3ft to 1ft. The wave comment reads “poor surf conditions” the whole way through. The combined energy is in single digits or low double digits. Glassy conditions show up briefly on the morning of Sunday the 12th and again on Friday the 17th, but there’s simply no swell to work with. It’s a flat spell, plain and simple.

The last chance we see comes on Thursday the 22nd of July. There’s a little bump of 2ft from the NE, but with a period of just 4 seconds and light rain, it’s still a tough sell. The energy is weak (14–20), and the wind is cross-off, so it’s clean, but tiny and weak.

For beginners, there’s nothing over 5ft in the whole period, so no worries there. For anyone else, the standout – if you can call it that – is the morning of Thursday the 9th of July. It’s the only time the score actually gets above zero, with clean offshore conditions and a bit of waist-high east swell. But it’s no barnstormer. Water temp is about average for July, nothing unusual there. Nantasket Beach is exposed to easterly swell, so it’s not getting much from the north or south.

Crowds are listed as “sometimes” possible, but with this kind of flatness, you’ll have the place pretty much to yourself. Consistency is good, but there’s just nothing consistent to be consistent with.

Hang in there, the forecasts can always shift. But for now, it’s a board-rack day.

Rusty.

Short Range Forecast

Moderate rain (total 18mm), heaviest on Tue night. Warm (max 31°C on Thu afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the NE on Tue night, light winds from the E by Wed afternoon).

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Fri night. Warm (max 25°C on Sun afternoon, min 19°C on Sat night). Wind will be generally light.

Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tue
14
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.5
E
7
1.3
E
8
1.1
E
8
0.9
E
8
0.8
E
8
0.7
E
8
0.5
E
8
0.4
E
8
0.4
E
8
0.3
E
7
0.6
NE
4
0.6
NE
4
0.3
E
8
0.2
E
8
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
8
0.6
S
4
Wave Graph
Metric surfscale
Energy kJ
196
187
141
94
72
55
28
18
18
9
12
12
10
5
4
4
4
4
4
4
11
Wind (km/h)
20
NE
10
NNE
10
ESE
15
WSW
10
WSW
15
SSW
15
SW
10
NNE
10
ESE
5
NW
20
NE
15
E
10
W
5
ESE
20
SE
10
SW
15
SE
20
SSE
15
SW
15
SSW
25
S
Wind State
cross-on
cross
cross-on
cross-off
off
cross-off
cross-off
cross-on
on
cross-off
cross-on
on
off
glassy
cross-on
cross-off
cross-on
cross-on
cross-off
cross-off
cross-off
High Tide
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
10:00PM3.34m
10:46AM2.80m
10:58PM3.41m
11:42AM2.88m
Low Tide
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
3:42PM0.14m
4:33AM-0.26m
4:40PM0.06m
5:29AM-0.34m
5:37PM0.00m
heavy rain
part cloud
clear
clear
clear
cloud
thunderstorm
clear
light rain
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:15
5:16
5:16
5:16
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:21
8:21
8:20
8:20
8:19
8:19
 mm
15
2
1
7
Temp °C
18
20
23
21
28
31
26
25
24
21
21
21
20
23
25
23
23
25
22
25
27
Feels °C
16
20
22
19
28
32
26
26
24
24
18
19
19
22
22
21
21
22
19
22
23
  • 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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