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Surf Forecasts:

Long Sands surf break

Long Sands surfForecast / Maine / USA

information circle12 Day Weather and Surf, issued 1 am Thursday 12 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Long Sands surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Long Sands sea temperature is
3.2° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Long Sands this week:

The surf forecast for Long Sands over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 12) at 5PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Long Sands in the next 12 days are 3.5m 9s and forecast to arrive on Tuesday (Mar 17) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Saturday (Mar 14) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 12th Mar)2.5ft (0.7m) 7s
Best Surf 5AM (Tue 17th Mar)10ft (3.0m) 10s
Most Powerful 2AM (Tue 17th Mar)11ft (3.5m) 9s

Table - best surf conditions forecast for Long Sands over the next 12 days.

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

Short Range Forecast Light rain (total 5mm), mostly falling on Fri night. Icy conditions (max 12°C on Thu morning, min -4°C on Sat night). Winds increasing (light winds from the WSW on Fri morning, fresh winds from the WNW by Sat afternoon).

Days 3-6 Weather Summary Heavy rain (total 32mm), heaviest during Mon morning. Icy conditions (max 13°C on Mon night, min -4°C on Sun morning). Winds increasing (light winds from the E on Sun morning, strong winds from the S by Mon night).

Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
1
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SSE
0.7
SSE
0.4
SSE
0.4
SSE
0.4
SE
1.5
S
0.9
SSE
0.4
SSE
0.3
SSE
0.1
E
0.1
E
1.3
SSE
3
SE
3.5
SSE
3.5
SSE
1.9
SE
1.6
SE
1.5
SE
1.3
SE
1.1
SE
1.1
SE
Period(s) (?)778996791010105899101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)136482430221827833202286103515562132687509425296230230
Wind
(km/h)
30
W
25
NW
25
WNW
15
WSW
20
SSW
25
S
30
W
40
WNW
30
WNW
5
E
20
SSE
25
SSE
30
S
35
S
40
S
30
W
25
W
15
WNW
20
W
25
WNW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
off		cross-
on		cross-
on		cross-
off		cross-
off		offcross-
on		ononcross-
on		cross-
on		cross-
on		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
7:09PM
2.08
7:18AM
2.39
8:12PM
2.12
8:20AM
2.46
9:06PM
2.23
9:13AM
2.57
9:50PM
2.38
9:59AM
2.70
10:30PM
2.54
10:41AM
2.81
11:08PM
2.71
11:23AM
2.90
11:45PM
2.87
Low Tide
/ height (m)
12:55PM
0.48
1:01AM
0.70
1:59PM
0.45
2:04AM
0.65
2:56PM
0.36
3:01AM
0.52
3:42PM
0.23
3:49AM
0.36
4:22PM
0.10
4:32AM
0.18
5:00PM
-0.02
5:15AM
-0.00
5:38PM
-0.12
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise7:00--6:58--6:56--6:54--6:52--6:50--6:50--
Sunset-6:44--6:45--6:46--6:47--6:49--6:50--6:51-
cloud
light rain
clear
part cloud
cloud
light rain
part cloud
part cloud
clear
part cloud
cloud
light rain
heavy rain
mod rain
mod rain
clear
part cloud
part cloud
part cloud
cloud
cloud
Rain (mm)
-1---4-----21767------
Temp. °C1220145350-10381113041-120
Feels °C (?)7-5-8-5-2-1-6-5-9-5-7-3256-9-4-7-8-6-6
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Long Sands 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 Long Sands at:
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Information about the Long Sands Surf forecast

The above surf forecast table for Long Sands provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Long Sands can be found by selecting the local surf guide option on the grey menu. Our Long Sands 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 (Long Sands) 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 Long Sands 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.

Long Sands is 15 km (9 miles) from Portsmouth. If you plan a vacation in Maine, look for hotels and other accommodation in Portsmouth. Portsmouth has rooms for a wide range of budgets as well as car hire and transport links.

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