Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Issued: 7 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
19.0° C

1.5°C warmer than normal for this time of year

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 5 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 8PM (local time) - 3ft (0.9m), 6s period, ENE swell with glassy winds.
  • Most powerful swell: Tuesday 7 Jul, 11AM (local time) - 6ft (1.8m), 7s period, ESE swell with 278 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 8PM (local time) - 3ft (0.9m), 6s period with ENE 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 Wednesday (Jul 08) at 8PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.7m and 6s. 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 1.8m 7s and forecast to arrive on Tuesday (Jul 07) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (Jul 10) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 8th Jul)3ft (0.9m) 6s
Best Surf 8PM (Wed 8th Jul)3ft (0.9m) 6s
Most Powerful11AM (Tue 7th Jul)6ft (1.8m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 42mm), heaviest during Mon night. Warm (max 30°C on Sat night, min 15°C on Mon morning). Winds increasing (calm on Sat night, near gales from the E by Tue morning).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Thu night. Warm (max 26°C on Fri afternoon, min 15°C on Tue night). Winds decreasing (strong winds from the NE on Tue night, calm by Wed night).

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Sat
11
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
8
0.4
SE
8
0.3
ESE
9
0.4
SE
10
0.4
SE
10
1.3
ESE
5
1.8
ESE
7
1.3
ESE
7
1.3
NE
6
1.1
ENE
7
1
ENE
7
0.6
E
7
0.5
E
7
0.4
SE
7
0.3
ESE
7
0.3
ESE
7
0.3
ESE
7
0.4
SE
7
1
N
5
0.7
N
5
Wave Graph
Metric surfscale
Energy kJ
18
14
18
17
24
24
77
278
154
136
105
96
34
24
14
10
10
10
12
41
21
Wind (km/h)
15
NNW
10
ESE
20
ESE
20
S
30
SE
30
ESE
45
E
45
ENE
50
NE
40
NNE
30
NNE
10
NNE
25
SW
25
SSW
35
SW
30
SW
15
WSW
40
SW
15
SW
30
N
5
NNE
Wind State
cross-on
cross
cross-on
cross-off
cross
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
off
off
off
off
cross-off
off
off
cross-on
cross-on
High Tide
3:32AM2.40m
4:06PM2.28m
4:18AM2.35m
4:50PM2.34m
5:07AM2.30m
5:36PM2.40m
6:00AM2.25m
6:26PM2.47m
6:57AM2.21m
7:20PM2.55m
7:58AM2.20m
8:16PM2.64m
8:59AM2.23m
Low Tide
9:24PM0.31m
9:51AM0.09m
10:10PM0.29m
10:34AM0.12m
10:59PM0.26m
11:20AM0.15m
11:52PM0.21m
12:10PM0.18m
00:49AM0.15m
1:04PM0.20m
1:49AM0.07m
2:01PM0.20m
2:49AM-0.02m
2:59PM0.17m
rain showers
part cloud
part cloud
cloud
light rain
cloud
heavy rain
mod rain
light rain
cloud
cloud
clear
clear
clear
clear
rain showers
part cloud
thunderstorm
rain showers
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:11
5:11
5:11
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:17
8:17
8:17
8:16
8:16
8:15
8:15
 mm
2
1
26
8
5
3
1
6
Temp °C
30
20
22
21
15
17
16
16
15
15
16
16
19
22
24
22
23
26
23
20
21
Feels °C
31
19
20
18
9
12
9
9
8
8
12
14
17
19
21
18
24
28
25
16
21
Swell 1
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
8
0.4
SE
8
0.3
ESE
9
0.4
SE
10
0.4
SE
10
1.3
ESE
7
0.9
ESE
7
1.1
ENE
7
1
ENE
7
0.6
E
7
0.5
E
7
0.3
ENE
6
0.3
ESE
7
0.3
ESE
7
0.3
ESE
7
0.4
S
6
0.3
S
8
0.7
N
5
Energy kJ
18
14
18
17
24
24
154
93
105
96
34
24
8
10
10
10
13
10
21
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
4
0.3
NNE
4
0.1
NE
4
0.9
NE
6
1.1
SE
7
0.7
SE
7
0.9
N
5
0.6
SE
7
0.4
SE
8
0.4
SE
7
0.2
ESE
10
0.2
ESE
9
0.2
ESE
9
0.4
SE
7
0.3
SE
7
0.4
SSE
8
Energy kJ
4
3
1
50
136
53
43
33
15
14
9
9
9
12
7
20
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
6
0.1
S
5
0.2
S
5
0.3
S
6
0.6
SE
7
0.5
NE
6
0.3
SSE
7
0.1
E
10
0.2
E
7
0.1
E
9
0.1
E
9
0.3
NNW
3
0.2
ESE
10
0.3
ESE
10
Energy kJ
2
1
2
6
29
15
9
2
4
2
1
2
9
19
Wind waves
Height (m)
Direction
Period (s)
0.4
NNW
3
0.6
NE
3
0.4
SE
3
0.6
SE
4
0.8
SE
4
0.8
SE
4
1.3
ESE
5
1.8
ESE
7
1.3
NE
6
1
N
5
0.4
SW
2
0.5
SW
3
1.1
SSW
4
1.1
SSW
5
0.9
SSW
4
1.3
SSW
5
0.3
N
3
1
N
5
0.6
NNE
5
Energy kJ
3
9
3
8
23
21
77
278
132
54
2
5
52
54
25
75
1
41
17
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
417
605
1830
417
1255
1830
508
579
1822
90
52
52
0
186
923
110
118
389
121
102
82
Best forecast wave conditions in Massachusetts
Rating
(10 max)
2
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
2
1
1
3
2
1
3
2
2
4
1
1
3
3
1
2
1
1
2
2
Header Global
Rating
(10 max)
5
9
7
5
6
8
7
5
5
9
8
9
9
5
5
5
5
8
7
6
8
  • 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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