Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Longnook Beach Surf Forecast and Surf Report

Issued: 7 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
19.8°C
0.2° 

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 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 11AM (local time) - 2.5ft (0.7m), 10s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 3ft (0.9m), 10s period, ESE swell with 137 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 11AM (local time) - 2.5ft (0.7m), 10s 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 Wednesday (Aug 26) at 11AM. The primary swell is predicted to be 0.7m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Longnook Beach in the next 16 days are 0.9m 10s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Aug 25) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 26th Aug)2.5ft (0.7m) 10s
Best Surf11AM (Wed 26th Aug)2.5ft (0.7m) 10s
Most Powerful 2PM (Wed 26th Aug)3ft (0.9m) 10s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Mon afternoon, min 18°C on Tue morning). Winds decreasing (fresh winds from the SW on Tue afternoon, calm by Wed afternoon).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Fri night. Warm (max 26°C on Thu afternoon, min 20°C on Fri night). Wind will be generally light.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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
1
0
1
1
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
ESE
11
0.3
ESE
11
0.3
ESE
11
0.3
ESE
11
0.3
ESE
11
0.3
ESE
11
0.7
ESE
10
0.9
ESE
9
0.8
ESE
8
0.7
ESE
8
0.7
ESE
8
0.6
ESE
8
0.5
SE
8
0.5
SE
8
0.7
SE
8
0.6
SE
8
0.5
SE
8
0.5
SE
8
0.4
SE
7
0.4
SE
8
0.3
SE
8
Wave Graph
Metric surfscale
Energy kJ
25
24
23
22
22
22
86
124
80
64
62
46
33
31
58
37
31
31
17
17
10
Wind (km/h)
10
WSW
20
SSW
20
SSW
15
WSW
30
SW
20
WNW
15
WNW
20
SSE
25
WSW
20
SSW
30
S
20
S
0
SSE
10
W
20
NW
15
NE
25
SE
5
SW
20
SSE
15
W
15
WSW
Wind State
off
off
off
cross-off
off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross-off
cross
on
cross
off
cross-off
cross-off
cross-off
High Tide
9:43AM1.98m
9:51PM2.31m
10:30AM2.05m
10:37PM2.38m
11:12AM2.15m
11:20PM2.45m
11:51AM2.25m
11:59PM2.50m
12:27PM2.34m
00:38AM2.53m
1:03PM2.43m
1:18AM2.54m
1:39PM2.51m
1:58AM2.51m
Low Tide
3:30PM0.50m
4:16AM0.27m
4:18PM0.41m
4:57AM0.19m
5:03PM0.31m
5:36AM0.11m
5:44PM0.22m
6:13AM0.04m
6:26PM0.13m
6:50AM-0.00m
7:06PM0.05m
7:28AM-0.02m
7:48PM-0.01m
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
clear
clear
part cloud
light rain
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:58
5:58
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:27
7:24
7:23
7:22
7:21
7:19
7:16
 mm
2
1
3
1
7
2
Temp °C
24
26
25
20
23
23
19
22
22
25
26
24
23
25
24
21
21
21
23
26
24
Feels °C
23
21
23
17
22
20
17
19
19
24
24
24
26
27
23
18
16
17
22
25
23
  • 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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