Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 7 am 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
19.9° C

1.6°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 6 Jul 2026:

  • Best quality surf: Monday 13 Jul, 2AM (local time) - 4ft (1.2m), 6s period, E swell with glassy winds.
  • Most powerful swell: Tuesday 7 Jul, 11PM (local time) - 5ft (1.5m), 7s period, E swell with 199 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 2AM (local time) - 4ft (1.2m), 6s 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 Monday (Jul 13) at 2AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.1m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nantasket Beach in the next 16 days are 1.5m 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 Thursday (Jul 09) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 13th Jul)4ft (1.2m) 6s
Best Surf 2AM (Mon 13th Jul)4ft (1.2m) 6s
Most Powerful11PM (Tue 7th Jul)5ft (1.5m) 7s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here, looking over the next stretch for Nantasket Beach. Gotta be straight with you – it’s a rough run. The whole 16-day window is pretty much a write-off for decent surf. We’re looking at a long, flat spell with barely a pulse.

Right now, on Monday the 6th, we’ve got tiny waves, just 0.7ft, with a light onshore breeze chopping things up. Water temp is sitting at 68°, which is a touch warmer than normal for this time of year, but that’s about the only positive. The energy in the water is next to nothing (7), and the surf is just poor.

Things tease a little around Tuesday the 7th and into Wednesday the 8th. We see the swell nudge up to that 4ft to 4ft range, and the combined energy climbs to a moderate 130-139. But that’s a short-period, wind-driven E swell, and the wind is onshore or cross-onshore. It’s going to be bumpy and messy. Not worth getting wet for.

We get a glimpse of cleaner conditions on Thursday the 9th, with a cross-offshore breeze, but the swell drops right back down to 2ft to 2ft. Then it’s back to tiny surf and onshores. There’s another small flare around Monday the 13th and Tuesday the 14th, where the swell hits 5ft and the energy pushes into the 120-151 range, but the wind is still cross-onshore, making for a choppy, poor-quality wave.

The rest of the run into the second week is just flat. We’re talking about 0.3ft to 1ft for days on end. Even on Friday the 17th and Sunday the 19th, when we get glassy conditions, the swell is virtually non-existent. You’d be floating out there on a lake.

For this area, a blank run like this is fairly normal. There just isn’t any quality on offer. This setup would be more interesting for a kite surfer than a paddle surfer, especially on those breezy days around the 7th, 8th, and 13th. But for us, it’s a no-go.

Keep an eye on the charts, things can change, but for now, the boards stay in the van.

Rusty.

Short Range Forecast

Heavy rain (total 30mm), heaviest during Tue morning. Warm (max 22°C on Mon afternoon, min 16°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Fri night. Warm (max 31°C on Fri afternoon, min 19°C on Sat night). Wind will be generally light.

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
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
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
E
10
0.2
E
10
0.2
E
10
0.9
ESE
5
1.3
E
6
1.4
ESE
7
1.2
E
7
1
E
7
0.8
E
7
0.7
E
7
0.6
E
7
0.5
E
7
0.4
E
7
0.4
E
7
0.3
E
7
0.3
E
7
0.6
NE
4
0.4
ENE
4
0.6
ENE
4
0.8
E
4
1.2
E
6
Wave Graph
Metric surfscale
Energy kJ
7
8
8
37
130
197
139
99
63
50
35
23
15
16
9
8
14
7
13
25
98
Wind (km/h)
10
ESE
15
SE
15
SE
25
E
25
ENE
20
NE
10
ENE
10
ESE
15
SW
15
SW
20
SSW
20
SW
10
W
10
NW
15
N
20
NE
10
ESE
5
NW
10
ENE
20
ESE
5
SSE
Wind State
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross
cross-on
cross-on
glassy
on
cross-on
glassy
High Tide
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
10:00PM3.34m
Low Tide
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
3:42PM0.14m
4:33AM-0.26m
cloud
cloud
light rain
mod rain
mod rain
mod rain
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
thunderstorm
part cloud
part cloud
clear
clear
part cloud
clear
<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
8:21
8:21
8:20
8:20
 mm
5
8
8
9
1
2
Temp °C
21
22
19
17
17
17
19
21
21
27
30
26
29
31
27
22
23
22
22
23
21
Feels °C
21
21
18
15
14
15
18
21
20
27
29
26
30
31
29
19
20
21
20
20
19
Swell 1
Height (m)
Direction
Period (s)
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
1.4
ESE
7
1.2
E
7
1
E
7
0.8
E
7
0.7
E
7
0.6
E
7
0.5
E
7
0.4
E
7
0.4
E
7
0.3
E
7
0.3
E
7
0.2
E
8
0.4
ENE
4
0.2
E
7
0.2
E
7
0.1
E
10
Energy kJ
7
8
8
7
197
139
99
63
50
35
23
15
16
9
8
4
7
4
3
2
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
4
0.1
SE
10
0.1
SE
10
0.1
E
11
0.1
E
10
0.2
E
7
0.1
E
10
0.1
E
10
Energy kJ
3
4
4
2
2
4
2
2
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
4
0.1
E
10
Energy kJ
4
1
2
Wind waves
Height (m)
Direction
Period (s)
0.3
SE
3
0.3
SE
3
0.9
ESE
5
1.3
E
6
1.4
E
7
0.3
SW
2
0.3
SW
2
0.3
NE
3
0.5
NE
4
0.6
NE
4
0.6
ENE
4
0.8
E
4
1.2
E
6
Energy kJ
1
2
37
130
178
1
1
1
6
14
13
25
98
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)
2747
1828
581
618
276
40
28
32
26
7
1107
542
58
340
160
117
117
655
534
1633
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
2
2
3
1
2
3
2
1
2
2
1
2
1
1
3
1
1
2
Header Global
Rating
(10 max)
8
7
5
5
9
8
9
9
5
6
6
5
8
6
5
5
5
9
9
7
4
  • 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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