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Plum Island Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Plum Island surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 1 am Monday 11 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
9.0° C
(Which is slightly warmer than usual)How big are the waves at Plum Island today?
The current surf forecast for Plum Island at 5AM is: 0.8m 8s primary swell from a Southeast direction and 0.7m 8s secondary swell from a East-southeast direction (forecast issued at 01:00am May 11). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 2.5ft (0.8m) | 8s |
| Afternoon (11 May) | 2.5ft (0.8m) | 8s |
| Evening (11 May) | 2.5ft (0.8m) | 8s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Wed night. Very mild (max 14°C on Tue afternoon, min 8°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SSE 4 | SSE 5 | SSE 6 | |
68 | 80 | 78 | 86 | 84 | 71 | 69 | 57 | 71 | 98 | 125 | 116 | 91 | 64 | 61 | 56 | 54 | 37 | 28 | 28 | 27 | 49 | 133 | 166 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | glassy | cross | glassy | cross | cross | glassy | cross | cross | cross | cross | cross | |
High Tide | 7:14AM2.35m | 7:48PM2.34m | 8:10AM2.37m | 8:40PM2.47m | 9:05AM2.41m | 9:30PM2.63m | ||||||||||||||||||
Low Tide | 1:48AM0.55m | 2:15PM0.35m | 2:43AM0.41m | 3:03PM0.28m | 3:35AM0.23m | 3:50PM0.20m | ||||||||||||||||||
 | |  |  | | | |  | | |  | | | | | | |  | | | | | |  | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:53 | — | — | — | — | — | — | — | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
Temp °C | 11 | 10 | 9 | 12 | 12 | 13 | 12 | 11 | 9 | 8 | 8 | 12 | 12 | 14 | 13 | 11 | 11 | 9 | 9 | 13 | 12 | 12 | 12 | 11 |
6 | 6 | 5 | 8 | 8 | 9 | 9 | 7 | 4 | 4 | 4 | 8 | 9 | 11 | 9 | 8 | 7 | 6 | 7 | 10 | 7 | 6 | 6 | 7 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 9 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 65 | 80 | 78 | 86 | 84 | 71 | 69 | 57 | 71 | 98 | 125 | 116 | 91 | 64 | 61 | 56 | 54 | 37 | 28 | 28 | 27 | 20 | 20 | 10 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 8 | E 8 | E 9 | E 14 | NNE 4 | NE 4 | NNE 4 | NE 4 | NE 4 | S 3 | S 4 | ESE 10 | ESE 10 | ESE 10 | E 7 | ESE 10 | E 13 |
| kJ | 68 | 67 | 44 | 49 | 46 | 44 | 44 | 57 | 71 | 76 | 4 | 5 | 3 | 1 | 1 | 1 | 4 | 2 | 20 | 20 | 20 | 1 | 10 | 3 |
Swell 3 Height (m) Direction Period (s) | E 16 | SE 11 | SE 12 | — | — | E 14 | SE 14 | ESE 10 | SE 14 | E 14 | — | E 15 | ESE 12 | ESE 12 | NNE 4 | E 13 | ENE 7 | ESE 11 | S 4 | E 7 | E 7 | — | — | — |
| kJ | 5 | 30 | 34 | — | — | 4 | 8 | 38 | 8 | 4 | — | 4 | 13 | 14 | 1 | 3 | 9 | 22 | 1 | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 2 | NW 3 | NNW 2 | — | — | — | — | SSW 3 | N 2 | N 3 | N 3 | — | — | — | S 2 | S 3 | SSW 3 | — | SSW 4 | S 4 | S 3 | SSE 4 | SSE 5 | SSE 6 |
| kJ | 1 | 1 | 1 | — | — | — | — | 1 | 1 | 4 | 5 | — | — | — | 2 | 5 | 4 | — | 3 | 1 | 7 | 49 | 133 | 166 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 116 | 4 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 4 | 0 | 54 | 4 | 4 | 113 | 1882 | 1882 | 863 | 626 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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