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Plum Island Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Plum Island surfForecast / Massachusetts / USA
16 Day Weather and Surf, issued 7 pm Saturday 21 Mar 2026 EDTForecast update in hr min s Forecast update imminent
Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Plum Island sea temperature is
3.4° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Plum Island this week:
The surf forecast for Plum Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Mar 22) at 5PM. The primary swell is predicted to be 1.6m and 6s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Plum Island in the next 16 days are 2.0m 8s and forecast to arrive on Monday (Mar 23) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 5s period and expected on Sunday (Mar 29) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 22nd Mar) | 5ft (1.6m) 6s |
| Best Surf | 11PM (Mon 23rd Mar) | 5ft (1.6m) 8s |
| Most Powerful | 5PM (Mon 23rd Mar) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Plum Island over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mild with moderate rain (total 12mm) on Sun afternoon, Becoming colder with a light covering of snow, mostly falling on Mon night. Icy conditions (max 6°C on Sun afternoon, min -2°C on Tue morning). Winds decreasing (fresh winds from the NNE on Sun night, calm by Mon night). | Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu morning. Very mild (max 13°C on Thu night, min 1°C on Tue night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the SW by Thu night). | |||||||||||||||||||||
Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Sat 28 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 8 | 4 | 6 | 7 | 6 | 8 | 8 | 8 | 7 | 9 | 9 | 10 | 10 | 4 | 6 | 7 | 9 | 9 | 9 | 9 | 8 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 43 | 54 | 190 | 75 | 237 | 435 | 302 | 291 | 94 | 39 | 15 | 8 | 8 | 32 | 148 | 385 | 61 | 37 | 8 | 3 | 3 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | cross | cross | cross- on | cross | glass | cross | cross- off | off | cross | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- on | |
High Tide / height (m) | 2:25AM 2.87 | 2:55PM 2.58 | 3:13AM 2.86 | 3:45PM 2.46 | 4:04AM 2.79 | 4:41PM 2.33 | 5:01AM 2.69 | 5:42PM 2.21 | 6:04AM 2.58 | 6:51PM 2.14 | 7:14AM 2.51 | 8:07PM 2.14 | 8:29AM 2.49 | |||||||||
Low Tide / height (m) | 8:36PM -0.11 | 9:11AM -0.29 | 9:22PM -0.03 | 10:04AM -0.23 | 10:13PM 0.09 | 11:03AM -0.11 | 11:13PM 0.23 | 12:09PM 0.00 | 12:23AM 0.35 | 1:20PM 0.08 | 1:38AM 0.39 | 2:30PM 0.10 | 2:49AM 0.35 | 3:34PM 0.06 | ||||||||
Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Sat 28 | ||||||||||||||||
| Sunrise | - | 6:43 | - | - | 6:41 | - | - | 6:39 | - | - | 6:37 | - | - | 6:35 | - | - | 6:35 | - | - | 6:33 | - | |
| Sunset | - | - | 6:57 | - | - | 6:58 | - | - | 6:59 | - | - | 7:00 | - | - | 7:00 | - | - | 7:02 | - | - | 7:04 | |
 |  |  |  |  | | |  | | | | |  | | | | | |  | | | ||
Rain (mm) | - | 2 | 9 | 1 | - | - | - | - | - | - | - | - | 1 | 3 | 1 | 1 | - | - | - | - | - | |
| Temp. °C | 3 | 2 | 6 | 4 | 0 | 2 | 1 | 0 | 2 | 2 | 4 | 6 | 3 | 6 | 10 | 13 | 4 | 3 | -4 | -4 | -1 | |
| Feels °C (?) | -2 | -5 | 3 | -1 | -8 | -3 | -3 | -4 | -4 | -7 | -3 | 0 | -2 | -1 | 5 | 7 | -4 | -6 | -13 | -9 | -9 | |
- Map Icons:
Break
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 Plum Island 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 Plum Island Surf forecast
The above surf forecast table for Plum Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Plum Island can be found by selecting the local surf guide option on the grey menu. Our Plum Island 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 (Plum Island) 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 Plum Island 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.
Plum Island is 6 km (4 miles) from Newburyport. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Newburyport. Newburyport has rooms for a wide range of budgets as well as car hire and transport links.
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