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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 7 pm Tuesday 12 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
9.3° C
(Which is slightly warmer than usual)How big are the waves at Plum Island today?
The current surf forecast for Plum Island at 11PM is: 0.6m 7s primary swell from a East-southeast direction and 0.5m 4s secondary swell from a South-southeast direction, 0.6m 4s secondary swell from a South direction (forecast issued at 07:00pm May 12). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | - | - |
| Afternoon (12 May) | 2.5ft (0.8m) | 8s |
| Evening (12 May) | 1.5ft (0.4m) | 11s |
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 33mm), heaviest during Thu afternoon. Very mild (max 17°C on Wed afternoon, min 8°C on Fri morning). Winds increasing (calm on Tue night, fresh winds from the S by Wed afternoon). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 8 | SE 11 | ESE 7 | SE 10 | ESE 7 | ESE 10 | ESE 7 | SSE 4 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 5 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | SE 8 | SE 9 | ESE 10 | ESE 10 | |
64 | 42 | 38 | 27 | 26 | 20 | 19 | 27 | 117 | 173 | 118 | 81 | 59 | 87 | 136 | 143 | 170 | 215 | 248 | 251 | 219 | 405 | 800 | 880 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | glassy | cross | glassy | glassy | cross | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | |
High Tide | 8:40PM2.47m | 9:05AM2.41m | 9:30PM2.63m | 10:00AM2.46m | 10:21PM2.78m | 10:54AM2.51m | ||||||||||||||||||
Low Tide | 3:03PM0.28m | 3:35AM0.23m | 3:50PM0.20m | 4:26AM0.03m | 4:38PM0.11m | 5:16AM-0.16m | ||||||||||||||||||
 |  | |  | |  | |  | | | | | | | | |  |  | | | | | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | 7:58 |
— | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 3 | 12 | 12 | — | — | — | — | 1 | 2 | |
Temp °C | 15 | 13 | 11 | 10 | 9 | 9 | 11 | 14 | 17 | 15 | 14 | 13 | 12 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 |
10 | 11 | 8 | 7 | 7 | 6 | 7 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 5 | 3 | 3 | 2 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | — | E 12 | E 12 | ESE 10 | ESE 6 | ESE 7 | ESE 7 | SE 8 | SE 9 | ESE 10 | ESE 10 |
 kJ | 64 | 42 | 38 | 27 | 26 | 19 | 19 | 10 | 10 | 10 | 10 | 10 | 10 | — | 3 | 3 | 10 | 215 | 248 | 251 | 219 | 405 | 800 | 880 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | SE 11 | SSE 4 | SSE 4 | SSE 4 | ESE 10 | ESE 10 | E 7 | E 7 | E 6 | E 7 | E 13 | E 6 | — | — | — | E 12 | E 12 | — | E 7 | E 7 | ENE 7 | — | SE 10 |
| kJ | 24 | 29 | 9 | 11 | 6 | 20 | 10 | 1 | 1 | 3 | 1 | 3 | 3 | — | — | — | 3 | 3 | — | 150 | 111 | 73 | — | 315 |
Swell 3 Height (m) Direction Period (s) | NNE 4 | NE 4 | SE 10 | SE 10 | ESE 10 | E 7 | E 7 | E 7 | — | — | — | — | E 13 | — | — | — | — | — | — | — | E 10 | — | — | — |
| kJ | 2 | 1 | 28 | 27 | 20 | 4 | 1 | 4 | — | — | — | — | 3 | — | — | — | — | — | — | — | 19 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 4 | S 4 | — | — | SSE 4 | S 2 | SSE 4 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 5 | SE 6 | SE 6 | ESE 6 | — | — | — | — | — | — | — |
| kJ | 2 | 10 | 11 | — | — | 3 | 1 | 27 | 117 | 173 | 118 | 81 | 59 | 87 | 136 | 143 | 170 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 13 | 4 | 4 | 1279 | 1279 | 1279 | 926 | 444 | 574 | 401 | 427 | 381 | 166 | 52 | 75 | 75 | 52 | 81 | 81 | 81 | 81 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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