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Surf Forecasts:

Long Sands surf break

Long Sands surfForecast / Maine / USA

information circle16 Day Weather and Surf, issued 7 pm Thursday 19 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
3.0° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Mar 20) at 8AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.4m and 4s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Long Sands in the next 16 days are 2.1m 8s and forecast to arrive on Monday (Mar 23) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Monday (Mar 23) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 20th Mar)2ft (0.6m) 8s
Best Surf 5AM (Sat 21st Mar)4.5ft (1.3m) 7s
Most Powerful 2PM (Mon 23rd Mar)7ft (2.1m) 8s

Table - best surf conditions forecast for Long Sands over the next 16 days.

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

Short Range Forecast A dusting of snow turning to light rain (total 7mm) on Sun afternoon. Icy conditions (max 8°C on Fri afternoon, min 0°C on Thu night). Winds decreasing (fresh winds from the SSW on Fri afternoon, calm by Sat night).

Days 3-6 Weather Summary A dusting of snow on Sun night. Freezing level rising with drizzle on Wed afternoon. Icy conditions (max 6°C on Wed afternoon, min -4°C on Tue morning). Winds increasing (light winds from the ESE on Tue afternoon, fresh winds from the SSW by Wed morning).

Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thu
26
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
1
1
0
0
0
0
1
0
2
2
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
SE
0.6
SE
0.6
ESE
1.4
SSE
0.9
SE
0.8
SE
0.6
SE
0.5
SE
1
SSE
0.6
SE
2.2
NE
1.8
ENE
1.5
ENE
1.3
E
1.1
E
0.8
E
1.2
SSW
0.4
E
0.3
E
0.2
E
0.8
SSE
Period(s) (?)888788885878789959894
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8654451801027837305837479403237223184103702412619
Wind
(km/h)
20
SW
10
SW
35
SSW
20
SW
10
NNW
20
NNW
5
W
15
SSE
10
E
30
NNE
30
NNE
20
NE
15
NNE
10
NE
15
SSE
20
SSW
30
SW
20
WNW
20
WNW
5
S
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		crosscross-
off		offglasscross-
on		cross-
on		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
on		crosscrosscross-
off		offglasscross-
on
High Tide
/ height (m)
12:24AM
3.01
12:48PM
2.97
1:03AM
3.11
1:32PM
2.93
1:46AM
3.15
2:19PM
2.84
2:31AM
3.11
3:11PM
2.71
3:23AM
3.02
4:10PM
2.57
4:24AM
2.90
5:17PM
2.45
5:31AM
2.80
6:28PM
2.39
Low Tide
/ height (m)
6:41AM
-0.29
6:57PM
-0.20
7:26AM
-0.36
7:40PM
-0.17
8:12AM
-0.36
8:25PM
-0.08
9:03AM
-0.29
9:15PM
0.05
9:59AM
-0.17
10:12PM
0.20
11:03AM
-0.04
11:17PM
0.32
12:11PM
0.06
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thu
26
Sunrise-6:46--6:43--6:43--6:41--6:39--6:37--6:35-
Sunset--6:53--6:54--6:55--6:57--6:58--7:00--7:00
clear
part cloud
cloud
light rain
cloud
part cloud
part cloud
cloud
light snow
light snow
cloud
cloud
clear
cloud
part cloud
part cloud
cloud
rain showers
part cloud
part cloud
part cloud
Rain (mm)
---2----5--------1---
Temp. °C2487473121-311-100362-13
Feels °C (?)-4-10001-2-3-2-4-12-5-4-6-4-5-5-2-4-5-5
  • 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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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 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:
surf-forecast.com

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 16 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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