Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 1 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
19.0° C
1.3° 

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 30 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 11PM (local time) - 4ft (1.2m), 6s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Thursday 30 Jul, 2PM (local time) - 5ft (1.5m), 6s period, NE swell with 175 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 11PM (local time) - 4ft (1.2m), 6s 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 Thursday (Jul 30) at 11PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.2m and 10s. 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 1.5m 6s and forecast to arrive on Thursday (Jul 30) at 2PM. 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 2s period and expected on Tuesday (Aug 04) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 30th Jul)4ft (1.2m) 6s
Best Surf11PM (Thu 30th Jul)4ft (1.2m) 6s
Most Powerful 2PM (Thu 30th Jul)5ft (1.5m) 6s

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


The Lowdown

Alright, Rusty here again. Let’s break this down.

First up, Thursday morning the 30th of July. We’ve got a 5ft swell from the NE, but it’s a short 6-second period with a cross-onshore wind making it messy. The water’s a bit colder than normal at 66°, and the combined energy is a weak 161. It’s not a good look.

The standout is Friday morning, the 31st of July. The swell drops to 2ft, but the wind goes glassy, which is a massive positive. The swell direction is ENE, and the period is still short at 6 seconds, but for Nantasket Beach, with that clean surface, you’ll get some surfable waves. It’s the best session on the books. The combined energy is a weak 63. Nantasket Beach can get crowded sometimes, so try to beat the rush.

After that, it’s a long stretch of nothing. From Friday afternoon all the way to the 14th of August, we’re looking at a two-week gap with tiny waves and poor conditions. The swell never gets above 1ft, the energy is almost always in the single digits, and the wind is usually onshore or cross-shore. There are a few clean moments, like Monday morning the 3rd of August with a light offshore wind, but the swell is only 0.7ft. It’s flat.

Your only real shot is that Friday morning glass-off. The rest is a bust. That’s just how it goes sometimes. Forecasts can change, but for now, it’s a waiting game.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu morning. Warm (max 29°C on Sat afternoon, min 17°C on Thu morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 22mm), heaviest during Mon afternoon. Warm (max 29°C on Sun afternoon, min 18°C on Mon afternoon). Wind will be generally light.

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
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
1
1
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)
1.4
NE
6
1.4
NE
6
1
ENE
6
0.7
ENE
6
0.4
E
6
0.2
ESE
9
0.2
ESE
10
0.2
ESE
9
0.3
SSE
4
0.1
E
9
0.4
SE
3
0.1
SE
9
0.2
ESE
9
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.1
SE
8
0.1
SE
8
0.1
E
10
0.1
E
9
Wave Graph
Metric surfscale
Energy kJ
152
167
77
31
11
9
9
8
3
2
3
3
8
6
7
7
7
2
3
3
3
Wind (km/h)
20
NNE
20
NNE
10
NW
5
NW
15
SSE
10
WSW
5
SW
20
S
15
SSW
15
SSW
20
SSW
10
SSW
10
WSW
10
NE
10
NNE
20
E
20
ESE
15
S
15
WSW
10
SW
10
SSW
Wind State
cross-on
cross-on
cross-off
glassy
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
cross-on
cross
on
cross-on
cross
off
cross-off
cross-off
High Tide
12:47PM2.61m
00:50AM2.96m
1:23PM2.68m
1:29AM2.96m
1:59PM2.76m
2:09AM2.93m
2:36PM2.83m
2:50AM2.88m
3:16PM2.90m
3:34AM2.80m
3:59PM2.96m
4:24AM2.71m
4:48PM2.99m
Low Tide
6:38PM0.34m
7:10AM0.07m
7:18PM0.28m
7:45AM0.04m
7:58PM0.23m
8:22AM0.04m
8:40PM0.19m
9:00AM0.06m
9:25PM0.15m
9:43AM0.10m
10:15PM0.13m
10:29AM0.17m
11:10PM0.12m
light rain
rain showers
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clear
clear
part cloud
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part cloud
cloud
part cloud
cloud
heavy rain
light rain
mod rain
light rain
part cloud
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thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:33
5:35
5:35
5:37
5:37
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:05
8:04
8:02
8:01
8:00
7:59
7:58
 mm
1
1
11
2
6
3
3
2
Temp °C
18
19
19
22
24
23
27
29
24
26
29
24
22
19
19
19
20
23
25
28
25
Feels °C
16
17
19
23
25
24
28
29
23
26
27
24
24
20
21
20
20
25
26
29
27
  • 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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