Longnook Beach surfForecast / Massachusetts / USA

information circle12 Day Weather and Surf, issued 6 am Saturday 29 Nov 2025 EST
Forecast update in hr  min  s Forecast update imminent
Longnook Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Longnook Beach sea temperature is
9.9° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Longnook Beach this week:

The surf forecast for Longnook Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 03) at 4PM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Longnook Beach in the next 12 days are 2.5m 7s and forecast to arrive on Wednesday (Dec 03) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 6s period and expected on Sunday (Nov 30) at 10PM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Wed 3rd Dec)5ft (1.6m) 7s
Best Surf 4PM (Wed 3rd Dec)5ft (1.6m) 7s
Most Powerful 7AM (Wed 3rd Dec)8ft (2.5m) 7s

Table - best surf conditions forecast for Longnook Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 5mm), mostly falling on Sun night. Very mild (max 10°C on Sun afternoon, min 1°C on Sat morning). Winds decreasing (strong winds from the SSW on Sun afternoon, calm by Mon night).

Days 3-6 Weather Summary Heavy rain (total 34mm), heaviest during Tue afternoon. Icy conditions (max 9°C on Tue afternoon, min -2°C on Thu night). Winds decreasing (near gales from the NNW on Tue night, light winds from the WSW by Wed afternoon).

Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
ESE
0.1
SE
0.8
NNW
0.3
NNE
0.1
E
1.2
SSE
0.5
SE
1.5
NNW
0.7
N
0.4
NE
0.2
ESE
1.7
NNW
2.2
N
1.6
NNE
0.8
NE
0.5
SE
0.5
SE
2.1
NNW
1.5
N
0.9
N
0.4
ESE
Period(s) (?)101055107765695777101066610
Wave
Graph
(?)Metric surfscale
Energy kJ (?)94305202213420881495222565548483331845237
Wind
(km/h)
45
WNW
40
NW
5
NNE
35
S
45
S
40
WSW
50
NW
25
NNW
10
SSE
40
SSE
45
SSE
55
NNW
25
NNW
15
WSW
30
WSW
35
WSW
40
W
40
NNW
10
NNE
20
ESE
15
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
crosscross-
on
cross-
off
offcross-
off
cross-
off
crossoncrosscross-
on
High Tide
/ height (m)
6:04PM
2.27
6:38AM
2.40
7:02PM
2.32
7:29AM
2.56
8:00PM
2.37
8:20AM
2.72
8:56PM
2.43
9:11AM
2.85
9:51PM
2.48
10:03AM
2.95
10:45PM
2.51
10:55AM
3.00
11:39PM
2.50
Low Tide
/ height (m)
11:55AM
0.32
12:20AM
0.15
12:53PM
0.17
1:13AM
0.09
1:50PM
-0.01
2:06AM
0.03
2:45PM
-0.18
2:58AM
-0.03
3:39PM
-0.33
3:50AM
-0.07
4:32PM
-0.42
4:42AM
-0.09
5:25PM
-0.46
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Sunrise6:45--6:46--6:48--6:48--6:50--6:50--6:52--
Sunset-4:09--4:09--4:08--4:08--4:08--4:07--4:07-
clear
clear
part cloud
cloud
light rain
rain showers
clear
clear
part cloud
light rain
heavy rain
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
Rain (mm)
----14---232----------
Temp. °C35381010324795234554-112
Feels °C (?)-8-5-3-201-9-6-3-20-7-6-2-5-5-5-6-6-4-3
  • 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 12 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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