Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach Surf Forecast and Surf Report

Issued: 7 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
19.0° C
1.4° 

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 5 Aug 2026:

  • Most powerful swell: Wednesday 12 Aug, 2PM (local time) - 1.5ft (0.5m), 4s period, NE swell with 7 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 0.5m 4s and forecast to arrive on Wednesday (Aug 12) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Saturday (Aug 08) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Wed 12th Aug)1.5ft (0.5m) 4s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about Nantasket Beach.

Honestly, I gotta be straight with you—this is a lean stretch. The next couple of weeks are looking pretty flat for the most part. We’ve got a solid run of days with barely a ripple, so don’t be in a rush to wax up. The first real chance at anything rideable doesn’t show up until the tail end of the window.

The water is sitting at 66°F right now, which is a bit colder than usual for this time of year, so you’ll want that thicker wetsuit if you’re heading out.

We start off with a long dry spell. From Wednesday the 5th all the way through the weekend, it’s tiny. We’re talking 0.3ft to 1ft of sickly, short-period slop from the SE. The energy is basically non-existent, barely registering a 5 or 6 on the combined energy scale. The wind is light and occasionally offshore, which is almost a tease because the waves just aren’t there. Thursday afternoon the 7th goes glassy, but it’s on a 0.3ft wave. You’d be bobbing around with nothing to ride.

The whole first week, from the 5th to the 11th, the swell is a sad 0.3ft to 1ft with periods under 10 seconds. The energy is weak, like 3 to 10 on the combined scale. It’s a wasteland for a surfer.

Now, we do get a little flicker of hope around Wednesday the 12th. We see a 0.3ft swell from the east, but a 15-second period gets the energy up to 10. That’s a long-period groundswell, but at that size, it’s just a hint of something. It’s still “poor surf conditions” across the board.

The real standout, the only thing worth circling on your calendar, comes much later. On Monday the 17th, we finally see a bump. The morning shows 2ft from the ESE at 6 seconds, with the combined energy jumping to 34. That’s a weak to moderate energy, but it’s the biggest we’ve seen. The wind is a light cross-onshore, so it’ll be a bit bumpy. The next morning, Tuesday the 18th, has a similar 1ft from the ESE, but it goes glassy in the afternoon. That late Tuesday afternoon session on the 18th is your best bet. It’s consistent, but the swell is small and short-period, so expect fat, weak waves. It’s not a standout for quality, but it’s the only game in town.

The period is so short (6-7 seconds) that the waves will be mushy and close out fast. Nantasket Beach is an exposed beach, so any bit of east in the swell directions (ESE, E) will wrap in, but without any size or period, it’s a tough sell for a paddle. Honestly, with those small, weak waves and the occasional onshore wind, the setup might be more interesting for a kite surfer than a paddle surfer during this stretch.

Overall, the best on offer is Tuesday the 18th, late, with glassy conditions and a tiny bit of energy. But keep your expectations low. It’s one of those times where the forecast could change, so don’t write the whole month off.

Rusty.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Warm (max 33°C on Fri afternoon, min 21°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Mon night. Warm (max 34°C on Mon afternoon, min 22°C on Sat night). Wind will be generally light.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
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)
0.1
E
10
0.4
SSE
3
0.1
E
9
0.1
E
9
0.1
E
9
0.1
E
10
0.1
E
9
0.1
E
9
0.1
E
8
0.1
E
8
0.1
E
9
0.1
E
8
0.1
E
8
0.1
E
9
0.1
E
9
0.1
E
9
0.1
E
10
0.1
E
10
0.1
SE
9
0.1
SE
9
0.1
E
9
Wave Graph
Metric surfscale
Energy kJ
2
3
2
3
2
2
2
2
3
2
2
1
2
2
2
2
2
2
3
3
2
Wind (km/h)
10
WSW
10
SW
10
SW
10
WSW
10
SW
10
SW
10
WSW
5
ESE
10
SW
10
WSW
5
SSE
10
SW
10
WNW
5
SSE
10
SW
15
WSW
10
WSW
10
W
15
W
15
ENE
10
S
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross-off
cross-off
cross
cross-off
off
cross
cross-off
cross-off
off
off
off
cross-on
cross
High Tide
4:48PM2.99m
5:20AM2.62m
5:41PM3.02m
6:20AM2.55m
6:40PM3.05m
7:23AM2.52m
7:41PM3.08m
8:30AM2.55m
8:47PM3.14m
9:35AM2.65m
9:50PM3.23m
10:34AM2.78m
10:48PM3.30m
Low Tide
10:29AM0.17m
11:10PM0.12m
11:22AM0.23m
00:09AM0.11m
12:20PM0.28m
1:11AM0.09m
1:20PM0.30m
2:17AM0.03m
2:25PM0.27m
3:21AM-0.05m
3:30PM0.19m
4:21AM-0.16m
4:29PM0.08m
part cloud
part cloud
part cloud
clear
cloud
clear
clear
thunderstorm
thunderstorm
part cloud
clear
thunderstorm
clear
clear
rain showers
clear
clear
rain showers
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
5:41
5:41
5:43
5:45
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:57
7:55
7:53
7:52
7:52
7:50
 mm
1
15
2
2
7
Temp °C
27
32
27
30
32
30
31
33
25
25
32
29
29
32
30
29
34
32
27
21
20
Feels °C
27
31
27
32
34
32
33
35
28
27
34
29
30
33
31
30
35
33
28
21
21
  • 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
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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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