Surf Forecasts:
Plum Island surf forecast from 21 Jun 2026:
- Most powerful swell: Thursday 25 Jun, 8PM (local time) - 5ft (1.5m), 6s period, SSE swell with 131 kJ wave energy.
Best Forecast Surf Conditions for Plum Island this week:
The most powerful waves expected at Plum Island in the next 16 days are 1.5m 6s and forecast to arrive on Thursday (Jun 25) 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 0.4m 3s period and expected on Sunday (Jun 21) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 25th Jun) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Plum Island over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon night. Warm (max 23°C on Sun morning, min 14°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri morning. Warm (max 24°C on Thu afternoon, min 17°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSE 10 | SSE 9 | SSE 8 | SE 12 | SSE 7 | SE 11 | SSE 4 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SE 5 | SE 6 | SE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 7 | 6 | 6 | 5 | 5 | 25 | 29 | 16 | 29 | 30 | 23 | 25 | 19 | 45 | 51 | 48 | 80 | 25 | 15 | 18 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-on | off | glassy | cross-off | glassy | cross | cross-on | cross-off | on | cross-on | cross-off | cross-on | cross | cross-off | cross-off | cross | cross | cross-off | cross |
High Tide | 5:20AM2.51m | 6:01PM2.42m | 6:22AM2.34m | 7:00PM2.39m | 7:25AM2.20m | 7:57PM2.37m | 8:29AM2.10m | 8:51PM2.36m | 9:30AM2.05m | 9:41PM2.36m | 10:24AM2.03m | 10:27PM2.38m | 11:10AM2.04m | ||||||||
Low Tide | 11:45PM0.18m | 12:16PM0.02m | 00:47AM0.20m | 1:13PM0.11m | 1:48AM0.18m | 2:08PM0.20m | 2:46AM0.15m | 3:02PM0.26m | 3:42AM0.11m | 3:54PM0.30m | 4:33AM0.08m | 4:44PM0.34m | 5:22AM0.05m | 5:30PM0.35m | |||||||
 | |  |  |  |  |  | |  |  | | | | | | | | |  | |  | |
 | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — |
 | 8:23 | — | 8:24 | — | — | 8:24 | — | — | 8:24 | — | — | 8:24 | — | — | 8:24 | — | — | 8:24 | — | — | 8:24 |
mm | — | — | 2 | — | — | 5 | 17 | 2 | — | — | — | — | — | — | — | — | 1 | 1 | 8 | 1 | 6 |
Temp °C | 20 | 23 | 21 | 20 | 21 | 19 | 15 | 16 | 19 | 19 | 21 | 22 | 20 | 22 | 24 | 21 | 19 | 23 | 22 | 21 | 20 |
Feels °C | 19 | 22 | 20 | 20 | 21 | 16 | 15 | 16 | 18 | 20 | 20 | 19 | 18 | 22 | 21 | 19 | 19 | 21 | 20 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 9 | SSE 8 | SSE 5 | SSE 7 | SE 6 | SE 3 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | — | E 12 | SE 12 | SE 12 | SE 5 | SE 6 | SE 6 |
| kJ | 9 | 7 | 6 | 2 | 5 | 2 | 6 | 29 | 16 | 29 | 30 | 23 | 25 | 19 | — | 3 | 5 | 5 | 25 | 15 | 15 |
Swell 2 Height (m) Direction Period (s) | SE 12 | — | — | SE 7 | SE 11 | SE 11 | S 6 | E 11 | NE 4 | — | — | — | E 8 | SSE 4 | — | E 12 | — | — | ESE 11 | ESE 11 | SE 11 |
| kJ | 6 | — | — | 2 | 5 | 5 | 1 | 2 | 3 | — | — | — | 1 | 1 | — | 3 | — | — | 12 | 12 | 18 |
Swell 3 Height (m) Direction Period (s) | — | E 12 | SE 12 | SE 12 | — | E 11 | SE 11 | — | E 11 | E 7 | E 9 | E 8 | — | E 8 | — | — | — | — | — | ESE 11 | S 8 |
| kJ | — | 3 | 6 | 6 | — | 2 | 5 | — | 2 | 1 | 2 | 1 | — | 1 | — | — | — | — | — | 13 | 1 |
Wind waves Height (m) Direction Period (s) | W 3 | — | SSE 2 | — | — | — | SSE 4 | NE 3 | — | — | NNE 3 | — | S 4 | — | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SW 3 | — | S 3 |
| kJ | 2 | — | 1 | — | — | — | 25 | 4 | — | — | 2 | — | 6 | — | 45 | 51 | 48 | 80 | 4 | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 166 | 499 | 146 | 633 | 411 | 182 | 145 | 145 | 146 | 170 | 499 | 166 | 499 | 920 | 9 | 4 | 2742 | 1716 | 4 | 381 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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 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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