Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Issued: 7 pm 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
15.4° 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 24 Jun 2026:

  • Most powerful swell: Wednesday 24 Jun, 8AM (local time) - 2ft (0.6m), 7s period, SE swell with 38 kJ wave energy.

Best Forecast Surf Conditions for Longnook Beach this week:

The most powerful waves expected at Longnook Beach in the next 16 days are 0.6m 7s and forecast to arrive on Wednesday (Jun 24) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Jun 30) at 2PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Wed 24th Jun)2ft (0.6m) 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

Light rain (total 5mm), mostly falling on Thu night. Warm (max 25°C on Thu afternoon, min 16°C on Tue night). Winds increasing (calm on Thu morning, fresh winds from the WSW by Thu night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light.

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
6
0.6
SE
7
0.6
SE
7
0.1
E
6
0.5
SE
8
0.4
SE
7
0.3
SE
7
0.3
SE
6
0.1
E
11
0.1
SE
11
0.1
SE
10
0.2
ESE
11
0.3
ESE
10
0.3
ESE
10
0.4
SE
10
0.3
ESE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
ESE
10
0.3
ESE
10
Wave Graph
Metric surfscale
Energy kJ
30
38
30
1
28
0
7
6
2
5
4
11
20
20
37
22
27
25
25
19
19
Wind (km/h)
5
N
15
WNW
20
SSE
15
WNW
5
SE
25
S
30
WSW
10
SSW
20
SW
20
SW
0
SSE
5
E
15
NE
15
N
5
ESE
20
WSW
10
SW
30
SW
30
SW
45
SW
50
SW
Wind State
glassy
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
off
off
glassy
cross-on
on
cross-on
glassy
cross-off
off
off
off
off
off
High Tide
8:05AM2.12m
8:27PM2.37m
9:03AM2.07m
9:16PM2.37m
9:56AM2.05m
10:03PM2.39m
10:45AM2.05m
10:48PM2.41m
11:30AM2.07m
11:30PM2.43m
12:12PM2.09m
00:11AM2.45m
12:51PM2.11m
Low Tide
1:52AM0.27m
2:03PM0.36m
2:50AM0.26m
2:54PM0.41m
3:44AM0.23m
3:43PM0.44m
4:32AM0.20m
4:29PM0.44m
5:16AM0.17m
5:13PM0.43m
5:56AM0.14m
5:55PM0.40m
6:36AM0.12m
6:36PM0.38m
rain showers
part cloud
clear
clear
clear
clear
rain showers
part cloud
cloud
part cloud
cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:05
5:05
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:19
8:19
8:19
8:19
8:19
8:19
8:19
 mm
2
3
4
Temp °C
17
17
22
24
21
25
22
20
20
21
18
18
18
14
19
20
23
24
22
22
21
Feels °C
18
17
19
21
19
21
19
19
18
20
19
19
18
12
18
18
22
22
15
15
14
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
6
0.6
SE
7
0.6
SE
7
0.6
SSE
8
0.5
SE
8
0.4
SE
7
0.3
SE
7
0.3
SE
6
0.1
E
11
0.5
S
6
0.4
SE
6
0.3
SSE
6
0.3
SSE
7
0.3
ESE
10
0.4
SE
10
0.3
ESE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
ESE
10
1
SSW
5
Energy kJ
30
38
30
40
28
13
7
6
2
15
9
6
10
20
37
22
27
25
25
19
49
Swell 2
Height (m)
Direction
Period (s)
0.1
E
9
0.1
E
8
0.2
NNW
3
0.1
E
8
0.1
E
12
0.1
E
7
0.1
SE
11
0.2
ESE
11
0.3
ESE
10
0.2
SSE
7
0.3
NNE
3
0.2
S
6
0.2
S
7
0.1
S
6
0.3
ESE
10
Energy kJ
2
1
1
1
3
1
5
11
20
4
2
3
3
1
19
Swell 3
Height (m)
Direction
Period (s)
0.2
N
3
0.1
E
6
0.1
E
5
0.1
E
12
0.1
E
7
0.1
E
11
0.1
SE
10
0.1
SE
7
0.4
SE
7
0.3
S
6
0.2
NNE
3
0.1
SE
6
Energy kJ
1
1
1
3
1
2
4
2
13
6
1
1
Wind waves
Height (m)
Direction
Period (s)
0.6
S
4
0.8
S
4
0.6
SSE
4
0.8
S
4
0.3
NNE
3
0.2
WNW
3
0.4
SSW
3
0.6
SSW
3
1
SSW
4
Energy kJ
9
22
11
20
1
1
4
8
42
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)
82
2
148
105
162
923
262
87
262
197
82
469
209
485
2
184
474
1696
148
501
800
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
3
1
2
3
2
2
3
2
2
2
3
1
4
3
3
3
2
2
2
3
Header Global
Rating
(10 max)
9
8
5
5
4
5
5
5
5
5
6
5
9
7
6
6
7
5
5
5
4
  • 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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