Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Issued: 1 am 25 Jun 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
16.0° 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 25 Jun 2026:

  • Best quality surf: Sunday 28 Jun, 11PM (local time) - 1.5ft (0.5m), 10s period, SE swell with offshore winds.
  • Most powerful swell: Sunday 28 Jun, 11PM (local time) - 1.5ft (0.5m), 10s period, SE swell with 50 kJ wave energy.
  • Next surfable swell (1★+): Sunday 28 Jun, 11PM (local time) - 1.5ft (0.5m), 10s period with SE 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 Sunday (Jun 28) at 11PM. The primary swell is predicted to be 0.5m and 10s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Longnook Beach in the next 16 days are 0.5m 10s and forecast to arrive on Sunday (Jun 28) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Friday (Jun 26) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 28th Jun)1.5ft (0.5m) 10s
Best Surf11PM (Sun 28th Jun)1.5ft (0.5m) 10s
Most Powerful11PM (Sun 28th Jun)1.5ft (0.5m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 19°C on Sat night). Winds decreasing (fresh winds from the SW on Fri night, calm by Sat afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Mon night, min 19°C on Sun morning). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
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)
0.3
NW
3
0.4
SE
7
0.3
SE
7
0.1
E
12
0.1
E
12
0.3
SE
6
0.2
ESE
10
0.2
ESE
11
0.3
ESE
10
0.3
ESE
10
0.4
SE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.4
SE
8
0.4
ESE
10
0.2
ESE
10
0.3
ESE
10
Wave Graph
Metric surfscale
Energy kJ
2
0
7
3
5
5
11
11
20
20
37
35
39
38
20
19
19
19
38
9
19
Wind (km/h)
10
W
25
S
20
SSW
15
S
30
SSW
25
SW
15
SW
10
SSE
10
WSW
10
NE
10
NE
10
W
10
WNW
10
SE
15
WSW
5
NNE
10
W
5
SW
10
SSE
20
S
25
SSW
Wind State
cross-off
cross-off
off
cross-off
off
off
off
cross-off
off
on
on
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
off
cross-off
cross-off
off
High Tide
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
00:51AM2.47m
1:30PM2.14m
1:30AM2.47m
Low Tide
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
7:14AM0.09m
7:17PM0.36m
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:05
5:07
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
 mm
Temp °C
22
25
23
21
22
21
21
23
21
19
19
20
20
21
23
22
21
22
21
25
23
Feels °C
20
21
20
20
18
19
20
24
21
19
18
20
20
21
22
21
21
21
22
23
20
Swell 1
Height (m)
Direction
Period (s)
0.4
SSE
8
0.4
SE
7
0.3
SE
7
0.1
E
8
0.1
SE
11
0.3
SE
6
0.3
SE
6
0.2
ESE
11
0.3
SE
7
0.3
SSE
7
0.4
SE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
SE
8
0.3
SE
8
0.3
SE
8
0.4
SE
8
0.4
ESE
10
0.2
SSE
6
0.4
SE
7
Energy kJ
23
14
7
1
5
5
6
11
7
9
37
35
39
38
17
10
10
14
38
4
18
Swell 2
Height (m)
Direction
Period (s)
0.3
NW
3
0.1
E
8
0.1
E
12
0.1
E
12
0.1
SE
11
0.2
ESE
10
0.2
SSE
6
0.3
ESE
10
0.3
ESE
10
0.4
SE
10
0.2
S
7
0.2
S
6
0.2
S
6
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.1
E
10
0.2
ESE
8
0.3
ESE
10
Energy kJ
2
1
3
3
5
11
3
20
20
26
4
3
3
20
19
19
19
2
6
19
Swell 3
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
12
0.1
E
7
0.1
E
11
0.2
S
5
0.1
SE
7
0.1
E
12
0.4
SE
7
0.1
E
11
0.1
S
8
0.1
E
11
0.2
SSE
5
0.2
SSW
6
0.1
S
8
0.2
ESE
10
0.1
E
8
Energy kJ
3
3
1
2
2
2
3
12
2
1
2
3
4
1
9
1
Wind waves
Height (m)
Direction
Period (s)
0.5
S
3
0.6
SSW
4
0.7
S
4
1
S
4
0.7
SW
4
0.6
SW
3
0.6
SSW
4
0.4
SSW
4
0.3
SW
3
Energy kJ
5
11
13
38
16
7
10
5
1
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
138
607
118
138
110
121
190
607
262
242
609
8
2
607
8
184
1763
121
2
2700
186
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
1
3
2
1
3
3
1
4
3
1
4
3
1
2
2
1
2
2
2
Header Global
Rating
(10 max)
5
5
5
8
5
6
6
5
7
5
5
9
6
6
6
5
5
7
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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