Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 7 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
20.1° 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 18 Aug 2026:

  • Most powerful swell: Saturday 22 Aug, 11PM (local time) - 2.5ft (0.8m), 5s period, E swell with 34 kJ wave energy.

Best Forecast Surf Conditions for Nantasket Beach this week:

The most powerful waves expected at Nantasket Beach in the next 16 days are 0.8m 5s and forecast to arrive on Saturday (Aug 22) at 11PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sat 22nd Aug)2.5ft (0.8m) 5s

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


The Lowdown

Alright folks, Rusty here with a look at what's on offer for Nantasket Beach. I gotta be straight with you – this stretch of coastline is looking pretty flat for most of the next two weeks. It's a tough one.

Right out of the gate, we're looking at a long, dry spell. From now until the start of September, it's a whole lot of nothing. We're talking 13 days of tiny, weak, and messy conditions. The combined swell energy barely gets into double figures most days, sitting around a measly 14 to 89 (weak). There's a few mornings with glassy conditions on the 19th and the 30th of August, but with waves barely reaching 1 ft, there's just no push to get excited about.

The water temp is about average for this time of year, nothing wild.

There might be a faint glimmer for the absolute die-hards, but even then, it's a tough sell. On the morning of Monday the 31st of August and Tuesday the 1st of September, we see a bit of a bump. The swell picks up to 5-5 ft from the ENE, with the energy climbing into the moderate range (180-233). The problem is the wind. It's a cross-offshore breeze on the 31st morning keeping things clean, but the swell period is a short 6 to 7 seconds. That means weak, wind-affected lumps. It might be surfable, but it's far from good.

The 1st of September morning looks the best of a bad bunch. Glassy conditions with a 4 ft swell from the NE. A rare window of clean, manageable waves. But it's still just a short-period swell, so don't expect any gems.

For the experienced surfers who know this spot, keep an eye on that 1st of September window. For less experienced surfers, the 5+ ft swells on the 31st are right at the limit of what's comfortable. Honestly, with such a long run of poor quality, flat conditions and a short window of ordinary surf, this is one to skip. Don't bother.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 57mm), heaviest during Sun morning. Warm (max 22°C on Sat afternoon, min 17°C on Sun afternoon). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
Swell
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
9
0.2
ESE
8
0.3
ESE
9
0.2
ESE
9
0.4
ESE
7
0.4
ESE
6
0.4
ESE
6
0.3
ESE
8
0.3
ESE
7
0.4
E
8
0.4
E
8
0.3
E
8
0.3
E
8
0.3
E
8
0.6
E
5
0.7
E
5
0.7
E
6
0.6
E
6
0.5
E
6
Wave Graph
Metric surfscale
Energy kJ
2
7
16
8
15
14
13
12
11
18
21
12
11
10
16
27
31
22
17
Wind (km/h)
10
NE
10
NE
10
E
5
SSE
5
WSW
5
WSW
5
W
15
NE
10
ENE
5
WNW
10
NE
10
E
5
W
10
E
15
ESE
15
E
15
NE
15
N
10
SW
Wind State
cross-on
cross-on
on
glassy
glassy
glassy
glassy
cross-on
cross-on
cross-off
cross-on
on
off
on
on
on
cross-on
cross
cross-off
High Tide
3:54AM2.73m
4:15PM2.89m
4:47AM2.55m
5:05PM2.78m
5:44AM2.40m
5:58PM2.69m
6:41AM2.30m
6:52PM2.64m
7:41AM2.26m
7:49PM2.62m
8:40AM2.27m
8:46PM2.66m
Low Tide
9:42PM0.11m
9:59AM0.24m
10:35PM0.22m
10:48AM0.41m
11:31PM0.33m
11:40AM0.55m
00:28AM0.41m
12:35PM0.65m
1:27AM0.45m
1:31PM0.69m
2:27AM0.45m
2:28PM0.67m
3:22AM0.40m
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
light rain
light rain
clear
clear
part cloud
part cloud
light rain
heavy rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:54
5:56
5:56
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:42
7:39
7:38
7:37
7:36
7:34
7:32
 mm
5
2
2
43
5
1
Temp °C
21
22
22
21
26
29
28
22
23
20
19
21
20
21
22
19
19
19
19
Feels °C
22
23
23
22
27
29
28
22
22
22
20
22
21
22
21
20
19
20
20
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Nantasket Beach:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nantasket Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest