Longnook Beach Surf Break

Lat Long: 42.00° N 70.02° W

Longnook Beach Surf Forecast and Surf Report

Issued: 1 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Longnook Beach sea temperature is
20.7°C
1.8° 

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 1 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 5PM (local time) - 3ft (0.9m), 5s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 8AM (local time) - 3ft (0.9m), 11s period, ESE swell with 206 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 5PM (local time) - 3ft (0.9m), 5s 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 Thursday (Sep 03) at 5PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.4m and 9s. 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 11s and forecast to arrive on Wednesday (Sep 02) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Sep 01) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 3rd Sep)3ft (0.9m) 5s
Best Surf 5PM (Thu 3rd Sep)3ft (0.9m) 5s
Most Powerful 8AM (Wed 2nd Sep)3ft (0.9m) 11s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Tue afternoon. Warm (max 25°C on Thu afternoon, min 16°C on Tue afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Fri night. Warm (max 23°C on Fri night, min 16°C on Sat night). Winds decreasing (fresh winds from the NNE on Sat night, light winds from the NW by Sun night).

Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
1
0
0
0
0
0
0
0
0
0
0
1
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
SE
8
0.1
E
13
0.4
SE
12
0.4
ESE
11
0.9
ESE
5
1
ESE
6
0.9
ESE
5
0.9
ESE
5
0.9
ESE
7
0.8
ESE
7
0.7
E
7
0.6
E
8
0.6
E
8
0.9
NNE
5
1.4
NNE
6
1.6
NNE
6
1.4
NNE
7
0.9
NE
7
0.7
NE
6
0.5
NE
6
0.3
ENE
8
Wave Graph
Metric surfscale
Energy kJ
10
3
35
45
42
63
42
42
66
62
43
45
41
39
118
182
186
65
38
15
14
Wind (km/h)
5
SSE
25
SE
25
ESE
20
E
20
ESE
15
SE
20
S
15
SSW
25
N
20
NNW
10
ENE
25
NW
30
N
20
NNE
35
NNE
30
NNE
20
NNE
10
NW
10
SW
30
SSW
35
SW
Wind State
cross-off
cross
cross
cross-on
cross-on
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross
cross-on
on
cross-on
cross-on
cross-on
cross
off
off
off
High Tide
2:59PM2.59m
3:28AM2.38m
3:45PM2.59m
4:20AM2.29m
4:36PM2.57m
5:18AM2.19m
5:34PM2.54m
6:21AM2.13m
6:38PM2.51m
7:28AM2.12m
7:45PM2.53m
8:35AM2.17m
8:51PM2.57m
Low Tide
8:49AM0.03m
9:18PM-0.04m
9:34AM0.09m
10:09PM-0.01m
10:23AM0.18m
11:06PM0.04m
11:19AM0.26m
00:07AM0.09m
12:21PM0.31m
1:12AM0.10m
1:26PM0.32m
2:18AM0.06m
2:32PM0.26m
3:20AM-0.00m
light rain
light rain
rain showers
clear
part cloud
rain showers
rain showers
cloud
thunderstorm
part cloud
clear
rain showers
clear
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:07
6:07
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:12
7:10
7:08
7:07
7:06
7:04
 mm
2
5
1
1
2
4
2
1
Temp °C
19
17
18
19
19
19
20
25
23
18
19
23
19
19
18
16
17
18
18
22
20
Feels °C
19
14
14
15
17
17
20
26
23
17
19
24
16
17
15
10
13
17
17
17
15
  • 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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