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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 am Monday 25 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
11.4° C
(Which is slightly warmer than usual)How big are the waves at Plum Island today?
The current surf forecast for Plum Island at 4PM is: 1.4m 8s primary swell from a Southeast direction and 0.1m 16s secondary swell from a East direction (forecast issued at 07:00am May 25). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 5ft (1.6m) | 8s |
| Afternoon (25 May) | 4.5ft (1.4m) | 8s |
| Evening (25 May) | 4ft (1.2m) | 8s |
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 Mon morning. Warm (max 28°C on Wed afternoon, min 11°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 | SE 7 | SSE 7 | SSE 6 | SSE 6 | |
292 | 316 | 299 | 253 | 238 | 211 | 192 | 192 | 192 | 151 | 147 | 106 | 131 | 46 | 45 | 44 | 33 | 42 | 17 | 27 | 23 | 29 | 26 | 16 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 7:57AM2.33m | 8:36PM2.39m | 9:03AM2.26m | 9:31PM2.41m | 10:02AM2.21m | 10:18PM2.44m | ||||||||||||||||||
Low Tide | 2:16AM0.24m | 2:42PM0.13m | 3:15AM0.16m | 3:36PM0.16m | 4:10AM0.08m | 4:26PM0.18m | ||||||||||||||||||
 |  |  |  |  | |  | | | | |  | | | | | | | | | | | | | |
 | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | 5:09 |
 | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:09 | — | 8:10 |
— | — | 9 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 14 | 24 | 21 | 18 | 16 | 16 | 17 | 22 | 26 | 25 | 22 | 18 | 17 | 17 | 19 | 24 | 28 | 27 | 23 | 18 | 15 |
10 | 10 | 8 | 12 | 23 | 20 | 17 | 15 | 15 | 16 | 20 | 24 | 21 | 19 | 15 | 15 | 15 | 17 | 22 | 26 | 25 | 20 | 15 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | E 15 | SE 8 | SSE 5 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 | SE 7 | SSE 7 | SSE 6 | SSE 6 |
 kJ | 292 | 316 | 299 | 253 | 238 | 211 | 192 | 192 | 192 | 151 | 147 | 106 | 4 | 46 | 19 | 44 | 33 | 42 | 17 | 27 | 23 | 29 | 26 | 16 |
Swell 2 Height (m) Direction Period (s) | E 17 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 15 | E 15 | E 15 | E 15 | SE 8 | E 15 | E 15 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 |
| kJ | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 45 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 15 | — | — | — | — | — | — | — | E 14 | E 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SE 8 | SSE 4 | SW 3 | SSW 4 | SSW 3 | WSW 3 | SW 3 | SSW 3 | — | — | NNW 3 | NNW 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 131 | 19 | 5 | 11 | 8 | 3 | 3 | 4 | — | — | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 110 | 4 | 4 | 4 | 9 | 4 | 381 | 427 | 421 | 183 | 166 | 152 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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