Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Issued: 1 pm 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
17.1° C

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 30 Jun 2026:

  • Best quality surf: Monday 6 Jul, 5PM (local time) - 4ft (1.2m), 5s period, ENE swell with glassy winds.
  • Most powerful swell: Tuesday 7 Jul, 5PM (local time) - 4.5ft (1.3m), 6s period, ENE swell with 139 kJ wave energy.
  • Next surfable swell (1★+): Monday 6 Jul, 5PM (local time) - 4ft (1.2m), 5s 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 Monday (Jul 06) at 5PM. The primary swell is predicted to be 1.2m and 5s period with a secondary swell of 0.2m and 10s. 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 1.3m 6s and forecast to arrive on Tuesday (Jul 07) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Jul 01) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 6th Jul)4ft (1.2m) 5s
Best Surf 5PM (Mon 6th Jul)4ft (1.2m) 5s
Most Powerful 5PM (Tue 7th Jul)4.5ft (1.3m) 6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Wed night. Warm (max 31°C on Thu afternoon, min 21°C on Tue night). Winds decreasing (strong winds from the SW on Wed night, light winds from the SSW by Thu afternoon).

Days 5-7 Weather Summary

Moderate rain (total 18mm), heaviest on Sun night. Warm (max 33°C on Fri afternoon, min 17°C on Sun night). Winds increasing (calm on Fri afternoon, strong winds from the SW by Sat night).

Tue
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
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
10
0.2
ESE
10
0.2
ESE
10
0.3
ESE
10
0.4
SE
9
0.3
ESE
9
0.2
ESE
9
0.2
ESE
10
0.2
ESE
10
0.6
NNW
4
0.2
ESE
9
0.2
ESE
9
0.2
ESE
10
0.2
ESE
8
0.2
ESE
8
0.3
ESE
9
0.9
E
4
1.2
ENE
5
1.1
E
5
1.4
ENE
6
Wave Graph
Metric surfscale
Energy kJ
19
19
9
9
19
23
16
8
9
9
13
8
8
9
7
7
17
23
75
71
118
Wind (km/h)
30
S
35
SSW
40
SW
40
SW
35
SW
20
SW
30
SSW
20
WSW
15
W
10
SE
15
NNW
15
SW
35
SW
25
WSW
20
WSW
25
WNW
20
NNE
15
NNE
5
ENE
10
WSW
10
SSE
Wind State
cross-off
off
off
off
off
off
off
off
cross-off
cross
cross
off
off
off
cross-off
cross-off
cross-on
on
glassy
cross-off
cross-off
High Tide
00:51AM2.47m
1:30PM2.14m
1:30AM2.47m
2:08PM2.16m
2:10AM2.46m
2:47PM2.19m
2:50AM2.43m
3:26PM2.23m
3:32AM2.40m
4:06PM2.28m
4:18AM2.35m
4:50PM2.34m
5:07AM2.30m
Low Tide
6:36PM0.38m
7:14AM0.09m
7:17PM0.36m
7:52AM0.08m
7:58PM0.34m
8:31AM0.08m
8:40PM0.33m
9:10AM0.08m
9:24PM0.31m
9:51AM0.09m
10:10PM0.29m
10:34AM0.12m
10:59PM0.26m
11:20AM0.15m
part cloud
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
thunderstorm
heavy rain
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:09
5:09
5:09
5:09
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:19
8:19
8:19
8:17
8:17
8:17
8:17
 mm
7
3
1
3
11
Temp °C
23
22
24
25
22
29
31
31
31
33
32
29
31
25
28
27
22
17
19
22
23
Feels °C
21
19
18
20
17
31
33
30
32
36
31
28
28
20
28
26
22
16
20
21
22
Swell 1
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.2
ESE
10
0.2
ESE
10
0.3
ESE
10
0.4
SE
9
0.3
ESE
9
0.2
ESE
9
0.3
SSE
6
0.4
SSW
4
0.3
S
5
0.3
N
4
0.2
ESE
9
0.2
ESE
10
0.4
NW
3
0.2
ESE
8
0.3
ESE
9
0.1
S
6
0.2
ESE
10
0.2
S
7
0.2
S
7
Energy kJ
19
19
9
9
19
23
16
8
6
7
5
3
8
9
2
7
17
1
9
4
4
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
7
0.1
E
7
0.1
SE
7
0.2
ESE
10
0.3
SSE
5
0.2
ESE
9
0.2
ESE
9
0.2
E
10
0.2
ESE
8
0.2
N
3
0.1
S
6
0.1
S
6
0.2
S
7
0.1
SE
10
0.1
E
9
Energy kJ
10
6
6
5
1
2
9
5
8
8
7
7
1
1
1
4
4
2
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
4
0.2
ESE
10
0.1
E
7
0.3
S
5
0.2
S
6
0.3
S
6
0.2
E
10
Energy kJ
1
9
1
4
2
7
7
Wind waves
Height (m)
Direction
Period (s)
0.8
S
4
0.9
SSW
4
1.1
SSW
5
1.6
SSW
6
1.3
SSW
5
0.9
SSW
5
1.1
SSW
5
0.9
SSW
5
0.4
WNW
4
0.7
SSW
5
0.6
NNW
4
0.3
S
5
1.1
SSW
4
0.9
WSW
4
0.3
NNW
3
0.2
SSE
3
0.9
E
4
1.2
ENE
5
1.1
E
5
1.4
ENE
6
Energy kJ
18
31
56
145
87
39
56
37
5
26
13
4
44
28
1
1
23
75
71
118
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)
1173
482
148
110
118
357
384
121
184
1252
209
607
510
380
1414
120
209
82
0
0
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
2
2
2
1
2
2
2
2
2
2
2
2
1
2
1
2
3
2
2
4
Header Global
Rating
(10 max)
5
5
5
9
7
5
7
5
6
6
4
5
6
9
7
9
7
5
6
7
9
  • 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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