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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 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 7AM is: 1.0m 8s primary swell from a East-southeast direction and 0.1m 15s secondary swell from a East direction, 0.5m 4s secondary swell from a North direction (forecast issued at 01:00am May 12). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 3.5ft (1.0m) | 8s |
| 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 ForecastModerate rain (total 10mm), heaviest on Thu afternoon. Very mild (max 15°C on Tue afternoon, min 8°C on Tue morning). Winds increasing (calm on Tue afternoon, fresh winds from the S by Wed afternoon). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 11 | ESE 7 | SE 10 | ESE 7 | ESE 10 | ESE 10 | SSE 4 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | |
71 | 98 | 125 | 95 | 91 | 64 | 42 | 38 | 28 | 26 | 20 | 20 | 30 | 167 | 185 | 118 | 102 | 115 | 143 | 191 | 137 | 86 | 70 | 101 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | glassy | glassy | cross | off | glassy | glassy | cross-off | cross | cross | cross | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | |
High Tide | 8:10AM2.37m | 8:40PM2.47m | 9:05AM2.41m | 9:30PM2.63m | 10:00AM2.46m | 10:21PM2.78m | ||||||||||||||||||
Low Tide | 2:43AM0.41m | 3:03PM0.28m | 3:35AM0.23m | 3:50PM0.20m | 4:26AM0.03m | 4:38PM0.11m | ||||||||||||||||||
 |  |  |  |  | | |  | | | | | | | | | | | |  | | |  | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | 1 | 3 | |
Temp °C | 8 | 7 | 8 | 12 | 13 | 15 | 13 | 12 | 11 | 9 | 10 | 11 | 13 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 10 | 10 | 10 |
3 | 3 | 3 | 8 | 10 | 12 | 9 | 9 | 8 | 6 | 7 | 7 | 7 | 8 | 9 | 9 | 10 | 9 | 8 | 8 | 8 | 7 | 8 | 8 | |
Swell 1 Height (m) Direction Period (s) | 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 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 12 | E 13 | ESE 10 | ESE 10 | ESE 6 | ESE 6 |
 kJ | 71 | 98 | 125 | 95 | 91 | 64 | 42 | 38 | 27 | 26 | 19 | 19 | 20 | 10 | 10 | 10 | 10 | 10 | 3 | 3 | 10 | 9 | 70 | 101 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | E 15 | NNE 4 | NE 4 | ESE 11 | SE 11 | SE 10 | SSE 4 | SSE 4 | ESE 10 | ESE 10 | E 7 | E 7 | — | — | E 13 | E 13 | E 12 | — | E 12 | E 12 | SSE 6 | ESE 10 |
| kJ | 71 | 74 | 4 | 5 | 4 | 12 | 29 | 28 | 7 | 6 | 20 | 20 | 1 | 1 | — | — | 3 | 3 | 3 | — | 3 | 3 | 18 | 10 |
Swell 3 Height (m) Direction Period (s) | SE 14 | E 14 | — | E 15 | ESE 12 | NNE 4 | NE 4 | NE 4 | SE 10 | ESE 10 | E 7 | E 7 | — | — | — | — | — | — | — | — | — | — | ESE 10 | — |
| kJ | 8 | 4 | — | 4 | 14 | 2 | 1 | 1 | 28 | 20 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | 10 | — |
Wind waves Height (m) Direction Period (s) | NNE 3 | N 3 | N 4 | — | — | SSE 3 | S 4 | SSE 4 | SW 2 | SSW 4 | S 4 | S 3 | SSE 4 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | — | — |
| kJ | 2 | 5 | 7 | — | — | 2 | 9 | 9 | 1 | 4 | 4 | 6 | 30 | 167 | 185 | 118 | 102 | 115 | 143 | 191 | 137 | 86 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 9 | 0 | 0 | 4 | 0 | 0 | 4 | 4 | 4 | 1279 | 1882 | 926 | 444 | 617 | 373 | 182 | 166 | 170 | 354 | 211 | 43 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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