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Surf Forecasts:

Longnook Beach surfForecast / Massachusetts / USA

information circle12 Day Weather and Surf, issued 7 pm Wednesday 20 Aug 2025 EDT
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
21.0° C
 (Which is 1.1°C warmer than normal for this time of year)

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 Friday (Aug 22) at 8PM. The primary swell is predicted to be 2.5m and 12s period with a secondary swell of 0.9m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Longnook Beach in the next 12 days are 2.3m 17s and forecast to arrive on Friday (Aug 22) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Wednesday (Aug 27) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 22nd Aug)8ft (2.5m) 12s
Best Surf 8PM (Fri 22nd Aug)8ft (2.5m) 12s
Most Powerful 5AM (Fri 22nd Aug)7.5ft (2.3m) 17s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 12mm), heaviest on Wed night. Warm (max 25°C on Sat afternoon, min 15°C on Wed night). Winds decreasing (near gales from the NNE on Thu night, calm by Fri night).

Days 3-6 Weather Summary Some drizzle, heaviest during Mon night. Warm (max 22°C on Sun morning, min 19°C on Mon afternoon). Winds increasing (calm on Mon night, fresh winds from the SW by Tue afternoon).

Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wed
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
4
4
1
1
0
0
1
0
0
1
1
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SE
1.3
SE
1.7
SE
2.2
SE
3.5
ENE
3
ENE
2.4
E
2.1
E
1.8
E
1.4
E
1.2
E
1.1
E
1.1
E
0.9
E
0.5
E
0.6
E
0.5
SE
1
ESE
1.2
SE
1.1
ESE
0.9
ESE
Period(s) (?)15151817101112111111111110998138131110
Wave
Graph
(?)Metric surfscale
Energy (?)6298042045385428022418163810958214863383312651394652176204545292150
Wind
(km/h)
25
ESE
35
ENE
45
ENE
50
NE
45
N
20
NNE
10
WSW
10
SSW
30
SSW
30
SSW
25
S
25
S
20
S
30
SSE
15
ENE
25
SSW
15
W
40
SW
30
W
30
W
30
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onononcross-
on		cross-
on		offoffcross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
on		offcross-
off		offcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
9:58PM
2.59
10:44AM
2.24
10:55PM
2.62
11:35AM
2.31
11:46PM
2.63
12:20PM
2.37
12:32AM
2.62
1:02PM
2.41
1:15AM
2.57
1:41PM
2.43
1:57AM
2.49
2:20PM
2.42
2:39AM
2.39
2:58PM
2.39
Low Tide
/ height (m)
4:27AM
-0.02
4:34PM
0.20
5:18AM
-0.05
5:26PM
0.13
6:05AM
-0.07
6:14PM
0.09
6:47AM
-0.06
7:00PM
0.07
7:27AM
-0.01
7:43PM
0.07
8:06AM
0.06
8:26PM
0.11
8:45AM
0.15
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wed
27
Sunrise-5:52--5:54--5:54--5:56--5:56--5:58--5:58-
Sunset--7:31--7:30--7:29--7:27--7:24--7:23--7:22
rain showers
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
rain showers
clear
part cloud
clear
clear
part cloud
Rain (mm)
12--------------1-----
Temp. °C161718181819202225212222222219212022221820
Feels °C (?)1112129915192223171818212217201820171216
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Massachusetts

  1. weather stationWind Update The wind is still cross-on at Longnook Beach (light winds from the E at Provincetown Airport 18 km from Longnook Beach). 0.8m 4s local chop from the E with a 0.3m 15s groundswell from the ESE and a 0.3m 18s long period groundswell, also from the ESE. 3 swells combining to make bigger set waves.

    1 hour 50 minutes ago Longnook Beach
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18 km away, 1 h 50 min ago

15 km/h
E
0.0
21.0
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Longnook Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Longnook Beach at:
surf-forecast.com

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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