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Plum Island Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Plum Island surfForecast / Massachusetts / USA
12 Day Weather and Surf, issued 7 pm Friday 18 Jul 2025 EDT
Best Forecast Surf Conditions for Plum Island this week:
The surf forecast for Plum Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 24) at 8PM. The primary swell is predicted to be 1.0m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Plum Island in the next 12 days are 1.3m 5s and forecast to arrive on Wednesday (Jul 23) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Jul 24) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 24th Jul) | 3.5ft (1.0m) 6s |
| Best Surf | 8PM (Thu 24th Jul) | 3.5ft (1.0m) 6s |
| Most Powerful | 8PM (Wed 23rd Jul) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Plum Island over the next 12 days.
Short Range Forecast Light rain (total 5mm), mostly falling on Sun night. Warm (max 29°C on Sun afternoon, min 17°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 31°C on Thu afternoon, min 14°C on Tue morning). Winds increasing (light winds from the S on Mon night, fresh winds from the S by Wed night). | |||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| 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) (?) | 6 | 8 | 3 | 5 | 4 | 5 | 9 | 7 | 5 | 9 | 9 | 8 | 8 | 8 | 5 | 8 | 8 | 5 | 5 | 5 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 9 | 16 | 12 | 45 | 33 | 23 | 25 | 44 | 35 | 14 | 18 | 14 | 12 | 11 | 69 | 3 | 2 | 47 | 43 | 13 | 12 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- on | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross- on | cross- on | cross- off | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- on | on | |
High Tide / height (m) | 6:51AM 2.33 | 7:19PM 2.70 | 7:55AM 2.25 | 8:19PM 2.72 | 9:00AM 2.23 | 9:21PM 2.76 | 10:05AM 2.24 | 10:22PM 2.80 | 11:07AM 2.28 | 11:21PM 2.83 | 12:04PM 2.34 | 12:15AM 2.84 | 12:56PM 2.38 | |||||||||
Low Tide / height (m) | 1:20AM 0.05 | 1:30PM 0.16 | 2:25AM -0.01 | 2:33PM 0.20 | 3:28AM -0.06 | 3:36PM 0.20 | 4:30AM -0.12 | 4:38PM 0.18 | 5:27AM -0.18 | 5:35PM 0.15 | 6:22AM -0.21 | 6:30PM 0.12 | 7:13AM -0.22 | 7:23PM 0.10 | ||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| Sunrise | - | 5:20 | - | - | 5:22 | - | - | 5:22 | - | - | 5:24 | - | - | 5:24 | - | - | 5:26 | - | - | 5:26 | - | |
| Sunset | - | - | 8:16 | - | - | 8:15 | - | - | 8:15 | - | - | 8:14 | - | - | 8:13 | - | - | 8:12 | - | - | 8:10 | |
 | |  |  |  |  |  | | |  | | | | | | | | | | | | ||
Rain (mm) | - | - | - | - | 2 | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 23 | 23 | 25 | 25 | 27 | 29 | 21 | 19 | 21 | 20 | 17 | 19 | 19 | 23 | 24 | 22 | 26 | 31 | 27 | 23 | 24 | |
| Feels °C (?) | 21 | 22 | 22 | 23 | 27 | 29 | 23 | 15 | 18 | 18 | 14 | 15 | 16 | 20 | 21 | 17 | 24 | 29 | 27 | 24 | 24 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Massachusetts
Continuing clean conditions at Plum Island (calm at Ipswich 12 km from Plum Island). 0.3m 8s swell from the SSE with a 0.2m 9s swell from the E and a 0.1m 3s local chop from the NNE. Swells combining to make to make bigger set waves.
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 12 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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