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Surf Forecasts:
Long Sands surfForecast / Maine / USA
16 Day Weather and Surf, issued 7 am Monday 20 Apr 2026 EDTForecast 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
6.3° C
(Which is slightly warmer than usual)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 Sunday (Apr 26) at 2AM. The primary swell is predicted to be 0.3m and 13s period with a secondary swell of 0.3m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Long Sands in the next 16 days are 1.0m 5s and forecast to arrive on Wednesday (Apr 22) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Apr 21) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 26th Apr) | 1ft (0.3m) 13s |
| Best Surf | 2AM (Sun 26th Apr) | 1ft (0.3m) 13s |
| Most Powerful | 2AM (Wed 22nd Apr) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Long Sands over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 2mm), mostly falling on Wed morning. Mild temperatures (max 8°C on Mon afternoon, min 1°C on Mon night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 10°C on Thu morning, min 2°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 8 | 8 | 8 | 5 | 4 | 5 | 5 | 7 | 7 | 6 | 7 | 6 | 14 | 15 | 14 | 13 | 10 | 10 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 15 | 15 | 19 | 18 | 18 | 42 | 22 | 28 | 12 | 4 | 4 | 3 | 4 | 4 | 4 | 17 | 35 | 30 | 17 | 16 | 14 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | on | on | cross | cross | cross- on | cross | off | off | off | glass | cross- off | off | on | cross- on | glass | cross- on | on | cross- off |
High Tide / height (m) | 2:06PM 2.84 | 2:15AM 3.22 | 3:02PM 2.73 | 3:11AM 3.09 | 4:04PM 2.62 | 4:14AM 2.95 | 5:11PM 2.55 | 5:23AM 2.83 | 6:18PM 2.52 | 6:33AM 2.73 | 7:24PM 2.56 | 7:43AM 2.69 | 8:27PM 2.64 | ||||||||
Low Tide / height (m) | 8:07PM -0.02 | 8:50AM -0.35 | 9:01PM 0.10 | 9:49AM -0.22 | 10:03PM 0.23 | 10:53AM -0.08 | 11:10PM 0.33 | 12:00PM 0.03 | 12:21AM 0.38 | 1:07PM 0.10 | 1:33AM 0.35 | 2:11PM 0.13 | 2:40AM 0.26 | ||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
| Sunrise | 5:52 | - | - | 5:50 | - | - | 5:50 | - | - | 5:48 | - | - | 5:46 | - | - | 5:45 | - | - | 5:43 | - | - |
| Sunset | - | 7:30 | - | - | 7:30 | - | - | 7:31 | - | - | 7:34 | - | - | 7:35 | - | - | 7:36 | - | - | 7:37 | - |
 |  |  | | | |  |  | | | |  | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 8 | 5 | 3 | 4 | 4 | 4 | 6 | 7 | 10 | 10 | 8 | 8 | 9 | 7 | 7 | 8 | 6 | 8 | 9 | 8 |
| Feels °C (?) | -1 | 1 | -1 | -2 | -3 | -3 | -2 | 1 | 5 | 6 | 6 | 4 | 5 | 5 | 3 | 3 | 3 | 1 | 4 | 5 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
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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