Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 1 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
20.0° C

1.7°C warmer than normal for this time of year

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 7 Jul 2026:

  • Most powerful swell: Tuesday 7 Jul, 11PM (local time) - 5.5ft (1.7m), 7s period, ESE swell with 268 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 1.7m 7s 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 Wednesday (Jul 08) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Tue 7th Jul)5.5ft (1.7m) 7s

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


Updates in  hr  min  s Forecast update imminent

Alright, let’s get into it. This is Rusty, and I’m taking a look at what the next couple of weeks are shaping up like for us here.

To be straight with you, it’s a bit of a tough stretch. There’s very little on offer and the surf is pretty weak throughout. Nantasket Beach is our only spot, but we’re looking at a long stretch of small, poor-quality waves for the foreseeable future. The water temperature is 68°, which is a touch warmer than normal for the time of year, so at least you won’t freeze while you’re sitting out there waiting for something that isn’t coming.

Right from the get-go, we kick off on Tuesday, July 7th, with some light rain and a messy E swell. It’s only 2 ft, with a short, snappy 4-second period and the wind is coming out of the ENE at 12 mph, putting us onshore and choppy. Combined wave energy is just 27 – that’s real weak. Not worth paddling out.

Wednesday the 8th holds a bit more size – 4 ft in the morning from the east, period bumps up to 8 seconds, and the combined energy reaches 138 which is moderate – but the wind is onshore from the E at 3 mph in the morning, then clocking around to cross-on from the SE in the afternoon. The wave comment is “poor surf conditions” – it just isn’t clean.

Thursday the 9th drops off. Mornings see 2 ft with a clean look thanks to a light cross-offshore SW breeze at 9 mph. Energy is low at 55. The afternoon through to the 10th offers small but clean conditions with offshore winds, but the swell is tiny – 2 ft or less. Not really ridable.

From Saturday the 11th onward, it’s a full-on lull. We’ve got days with swell as small as 0.6 ft and wave energy figures like 7, 9, and 10. The wind is often clean – we even see glassy conditions on the morning of Saturday, July 18th, with a 2 ft NE swell and no wind – but the wave heights are so small it’s basically flat. The combined energy is still just 39. Even that little pop on the 18th is barely a ripple.

The tail end of the 16-day window on July 19th and 20th holds a touch more promise. The swell gets a little longer in period – 10 and 11 seconds – coming from the SE, with clean conditions and light wind. But the height is only 1 ft, combined energy is in the low 30s. Still too small to recommend.

Look, it’s a quiet period. This is about two weeks with no decent surf. Nantasket Beach can be consistent when the conditions line up, but right now we’ve got a blank run. Unless the forecasts shift, it’s probably more of a kite-surfing setup when the wind picks up and the quality drops, but for a paddle surfer, I’d say hang tight.

-Rusty

Short Range Forecast

Moderate rain (total 17mm), heaviest on Tue afternoon. Warm (max 31°C on Thu afternoon, min 17°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Fri afternoon. Warm (max 29°C on Fri morning, min 18°C on Sat night). Wind will be generally light.

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
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
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)
0.6
E
4
1.2
E
6
1.3
E
7
1.1
E
8
1
E
8
0.9
E
8
0.7
E
8
0.6
E
8
0.5
E
7
0.4
E
7
0.3
E
8
0.3
E
8
0.9
NE
5
0.7
NE
5
0.4
NE
4
0.2
E
8
0.2
E
7
0.2
E
9
0.2
E
8
0.2
E
9
0.2
E
8
Wave Graph
Metric surfscale
Energy kJ
15
89
150
138
114
92
55
40
25
15
12
10
36
24
5
5
4
7
5
7
5
Wind (km/h)
20
ENE
25
ENE
15
NNE
5
E
10
SE
20
WSW
15
SW
25
SW
20
SW
10
WNW
15
W
10
NNW
15
NE
15
SE
10
SW
10
SSW
20
SSW
15
SSW
10
SSE
20
SSE
10
SSW
Wind State
cross-on
on
cross-on
on
cross-on
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
High Tide
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
10:00PM3.34m
10:46AM2.80m
10:58PM3.41m
Low Tide
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
3:42PM0.14m
4:33AM-0.26m
4:40PM0.06m
mod rain
mod rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:15
5:16
5:16
5:16
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
 mm
7
8
2
1
Temp °C
17
17
18
19
23
22
27
31
26
29
28
24
23
24
23
25
28
22
23
26
23
Feels °C
16
14
17
19
22
20
26
30
26
29
27
24
20
21
21
24
26
19
22
22
21
Swell 1
Height (m)
Direction
Period (s)
0.2
E
10
1.3
E
7
1.1
E
8
1
E
8
0.9
E
8
0.7
E
8
0.6
E
8
0.5
E
7
0.4
E
7
0.3
E
8
0.3
E
8
0.2
E
9
0.7
NE
5
0.4
NE
4
0.2
E
8
0.2
E
7
0.2
E
9
0.2
E
8
0.2
E
9
0.2
E
8
Energy kJ
7
150
138
114
92
55
40
25
15
12
10
6
24
4
5
4
7
5
7
5
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
8
0.1
SE
4
0.1
E
10
0.3
E
8
0.1
SE
10
0.1
E
10
0.1
E
9
0.1
E
10
0.2
E
8
0.2
ENE
4
0.1
E
10
0.1
E
7
0.1
E
10
0.1
E
9
Energy kJ
3
1
2
13
4
2
1
2
5
2
2
1
2
2
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.1
SE
10
0.2
ESE
10
0.1
E
10
0.1
E
10
0.1
NE
4
Energy kJ
2
4
9
2
2
1
Wind waves
Height (m)
Direction
Period (s)
0.6
E
4
1.2
E
6
0.2
SSW
2
0.4
SW
2
0.3
SW
2
0.1
SE
4
0.2
NNE
2
0.9
NE
5
0.2
ENE
2
Energy kJ
15
89
1
1
1
1
1
36
1
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)
276
1237
17
32
32
7
7
55
108
117
67
117
117
653
523
523
653
655
805
890
69
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
2
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
3
2
2
3
2
1
2
1
2
2
2
2
3
1
1
2
2
1
Header Global
Rating
(10 max)
5
5
9
8
7
7
7
6
6
6
5
5
5
5
5
6
8
6
5
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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