Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Longnook Beach Surf Forecast and Surf Report

Issued: 7 am 10 Oct 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
15.2°C
0.6° 

Longnook Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Longnook Beach surf forecast from 10 Oct 2026:

  • Best quality surf: Monday 12 Oct, 8PM (local time) - 2.5ft (0.8m), 7s period, ESE swell with glassy winds.
  • Most powerful swell: Thursday 15 Oct, 11PM (local time) - 6ft (1.9m), 6s period, NNE swell with 300 kJ wave energy.
  • Next surfable swell (1★+): Monday 12 Oct, 8PM (local time) - 2.5ft (0.8m), 7s period with ESE swell.

Best Forecast Surf Conditions for Longnook Beach this week:

The surf forecast for Longnook Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 12) at 8PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Longnook Beach in the next 16 days are 1.9m 6s and forecast to arrive on Thursday (Oct 15) 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 2.3m 6s period and expected on Saturday (Oct 17) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 12th Oct)2.5ft (0.8m) 7s
Best Surf 8PM (Mon 12th Oct)2.5ft (0.8m) 7s
Most Powerful11PM (Thu 15th Oct)6ft (1.9m) 6s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Sun night. Very mild (max 15°C on Mon night, min 11°C on Sat morning). Winds decreasing (strong winds from the NE on Sun night, calm by Mon night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Warm (max 21°C on Wed afternoon, min 9°C on Thu night). Winds decreasing (strong winds from the SW on Tue night, light winds from the NE by Thu night).

Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
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)
1.2
NNW
5
0.6
NNW
5
0.3
ESE
8
0.3
ESE
8
0.2
E
8
0.7
SE
4
1.1
SE
7
0.9
ESE
7
1.1
E
4
1.5
NE
7
1.2
ESE
7
1.2
E
7
0.8
E
8
0.6
E
8
1.2
NNW
5
1.5
N
6
1.4
NNE
7
1.8
NNE
7
1.3
NE
7
0.9
NE
6
0.4
NE
6
Wave Graph
Metric surfscale
Energy kJ
77
17
14
13
5
14
109
82
43
195
123
159
78
43
81
165
175
298
153
68
11
Wind (km/h)
30
NW
10
NE
10
SSE
25
SSE
20
SSE
35
E
30
NNE
15
N
40
NE
25
ESE
35
SSE
45
SSW
30
SW
30
WNW
45
NW
45
NNW
35
NNW
20
NNE
20
SSE
35
SSE
55
SSW
Wind State
cross
on
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
on
cross
cross-off
off
off
cross-off
cross
cross
cross
on
cross-off
cross-off
cross-off
High Tide
11:46AM2.63m
00:13AM2.51m
12:26PM2.64m
00:56AM2.45m
1:05PM2.62m
1:38AM2.37m
1:45PM2.56m
2:20AM2.27m
2:26PM2.48m
3:04AM2.17m
3:09PM2.39m
3:51AM2.07m
3:57PM2.30m
4:42AM1.99m
Low Tide
5:58PM-0.10m
6:13AM0.03m
6:41PM-0.11m
6:53AM0.10m
7:24PM-0.07m
7:34AM0.19m
8:06PM-0.00m
8:15AM0.29m
8:49PM0.09m
8:58AM0.39m
9:35PM0.20m
9:44AM0.48m
10:24PM0.30m
clear
clear
part cloud
part cloud
cloud
heavy rain
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
part cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
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6:47
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6:48
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6:48
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6:50
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6:52
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6:52
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:07
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6:05
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6:04
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6:01
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6:00
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5:59
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5:57
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 mm
—
—
—
—
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19
—
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—
—
—
2
—
—
—
—
—
—
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4
5
Temp °C
12
12
12
12
14
14
14
13
15
12
14
18
19
21
16
10
13
12
10
13
19
Feels °C
5
6
8
7
10
10
8
8
15
6
8
11
16
17
8
-1
4
3
5
6
14
  • 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 Longnook Beach Surf forecast

The above surf forecast table for Longnook Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Longnook Beach can be found by selecting the local surf guide option on the grey menu. Our Longnook 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 (Longnook 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 Longnook 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.

Longnook Beach is 27 km (17 miles) from Brewster. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Brewster. Brewster has rooms for a wide range of budgets as well as car hire and transport links.

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