- Forecast
- Maps
- Live
- Weather State
- Spot Information
Plum Island Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Plum Island surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 7 am Friday 29 May 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
12.4° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Plum Island today (29 May):
- Morning surf: Morning surf (29 May, local time) - 1.5ft (0.4m), 5s period with ENE swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 1.5ft (0.4m), 8s period with SE swell.
- Evening surf: Evening surf (29 May, local time) - 1.5ft (0.5m), 8s period with E swell.
The current surf forecast for Plum Island at 4PM is: 0.6m 8s primary swell from a East-northeast direction and 0.7m 4s secondary swell from a Southeast direction (forecast issued at 07:00am May 29). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 1.5ft (0.4m) | 5s |
| Afternoon (29 May) | 1.5ft (0.4m) | 8s |
| Evening (29 May) | 1.5ft (0.5m) | 8s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Sat morning. Very mild (max 17°C on Fri morning, min 5°C on Sat morning). Winds decreasing (near gales from the NNE on Sat morning, light winds from the E by Sun morning). | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | ENE 4 | ENE 5 | SE 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | NE 8 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | |
7 | 8 | 17 | 18 | 49 | 33 | 38 | 43 | 42 | 952 | 3256 | 2676 | 1867 | 1260 | 1015 | 726 | 588 | 455 | 351 | 311 | 274 | 229 | 224 | 152 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross | cross-on | cross | cross | cross-off | off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | on | cross-on | cross-off | off | off | off | |
High Tide | 11:38AM2.17m | 11:38PM2.47m | 12:17PM2.15m | 00:15AM2.48m | 12:52PM2.15m | 00:51AM2.49m | ||||||||||||||||||
Low Tide | 5:47AM-0.04m | 5:58PM0.24m | 6:31AM-0.06m | 6:40PM0.28m | 7:13AM-0.04m | 7:21PM0.33m | ||||||||||||||||||
 |  |  |  | |  |  |  | | | | | | |  | |  | | | | | | | | |
 | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | 5:07 |
 | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:13 | — | — | — | — | — | — | — | 8:13 | — | 8:14 |
— | — | — | — | — | 3 | 2 | 1 | — | 4 | 5 | 3 | — | — | — | — | — | — | — | — | 2 | 1 | — | — | |
Temp °C | 12 | 14 | 17 | 14 | 15 | 13 | 13 | 10 | 7 | 5 | 5 | 7 | 9 | 11 | 10 | 9 | 9 | 11 | 14 | 15 | 13 | 14 | 14 | 12 |
10 | 10 | 13 | 11 | 10 | 10 | 10 | 5 | 3 | -7 | -5 | -2 | 1 | 7 | 7 | 5 | 5 | 8 | 12 | 11 | 11 | 12 | 11 | 10 | |
Swell 1 Height (m) Direction Period (s) | ENE 4 | ENE 4 | ENE 5 | ENE 6 | ENE 8 | E 8 | E 9 | SSE 4 | E 9 | SSE 6 | — | — | — | — | — | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 7 | 8 | 17 | 18 | 49 | 33 | 38 | 15 | 42 | 10 | — | — | — | — | — | 726 | 588 | 455 | 351 | 311 | 274 | 229 | 224 | 152 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | E 8 | E 8 | E 8 | — | E 10 | E 10 | E 9 | SSE 5 | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | E 15 | E 15 |
| kJ | 6 | 6 | 5 | 12 | — | 2 | 8 | 43 | 9 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | E 9 | SSE 8 | SSE 8 | — | — | SE 8 | E 15 | SE 8 | SE 8 | E 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 6 | 6 | — | — | 3 | 4 | 3 | 3 | 43 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | SE 8 | SE 4 | SSE 4 | SSE 4 | WNW 4 | WNW 4 | NE 8 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | — | — | — | — | — | — | — | SW 2 | W 3 |
| kJ | 3 | — | — | 17 | 12 | 29 | 28 | 11 | 16 | 952 | 3256 | 2676 | 1867 | 1260 | 1015 | — | — | — | — | — | — | — | 2 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 231 | 118 | 116 | 512 | 499 | 67 | 4 | 0 | 4 | 633 | 129 | 863 | 132 | 0 | 0 | 0 | 0 | 9 | 25 | 81 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- 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.
Nearest