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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 Sunday 17 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
9.2° C
(Which is normal for this time of year)How big are the waves at Plum Island today?
The current surf forecast for Plum Island at 12AM is: 0.4m 8s primary swell from a Southeast direction and 0.3m 5s secondary swell from a South-southeast direction, 0.3m 3s secondary swell from a North direction (forecast issued at 07:00pm May 17). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 1.5ft (0.4m) | 8s |
| Afternoon (18 May) | 1.5ft (0.4m) | 8s |
| Evening (18 May) | 2.5ft (0.8m) | 4s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 34°C on Tue afternoon, min 14°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 4 | SSE 4 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 5 | S 6 | SSE 6 | SSE 7 | SE 8 | SE 8 | SE 9 | SE 9 | |
43 | 39 | 22 | 21 | 29 | 21 | 20 | 20 | 20 | 24 | 26 | 27 | 28 | 27 | 26 | 26 | 40 | 213 | 110 | 77 | 29 | 25 | 27 | 29 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | |
High Tide | 00:53AM3.06m | 1:32PM2.57m | 1:46AM3.05m | 2:26PM2.53m | 2:40AM2.98m | |||||||||||||||||||
Low Tide | 7:05PM-0.01m | 7:50AM-0.41m | 7:58PM0.02m | 8:45AM-0.37m | 8:54PM0.08m | 9:42AM-0.28m | ||||||||||||||||||
 | |  |  | |  | | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — |
 | — | 8:00 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:01 | — | — | — | — | — | 8:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 25 | 21 | 17 | 15 | 14 | 14 | 15 | 15 | 19 | 21 | 20 | 22 | 24 | 30 | 34 | 33 | 29 | 26 | 24 | 23 | 25 | 30 | 32 |
25 | 24 | 19 | 15 | 12 | 11 | 10 | 10 | 11 | 19 | 21 | 20 | 22 | 24 | 29 | 30 | 30 | 29 | 26 | 22 | 22 | 24 | 28 | 28 | |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 13 | SE 8 | SE 9 | SSE 4 | SSE 4 | SE 9 | SE 9 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SE 8 | SE 8 | SE 9 | SSE 4 |
 kJ | 43 | 39 | 22 | 21 | 29 | 21 | 20 | 20 | 20 | 4 | 20 | 27 | 16 | 7 | 26 | 26 | 40 | 117 | 110 | 77 | 29 | 25 | 27 | 6 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 15 | SE 5 | SSE 5 | E 15 | E 15 | E 14 | NE 4 | NE 4 | E 18 | E 13 | E 13 | SE 9 | SE 9 | E 13 | E 13 | SE 9 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | SE 9 |
| kJ | 6 | 4 | 6 | 5 | 4 | 4 | 4 | 4 | 3 | 6 | 3 | 3 | 28 | 27 | 3 | 3 | 19 | 5 | 5 | 5 | 5 | 5 | 5 | 29 |
Swell 3 Height (m) Direction Period (s) | — | E 15 | E 15 | E 15 | — | — | E 18 | E 14 | E 14 | E 17 | E 17 | — | E 13 | E 13 | — | E 16 | E 13 | — | — | E 13 | E 16 | E 16 | E 12 | SE 12 |
| kJ | — | 4 | 4 | 4 | — | — | 6 | 4 | 4 | 6 | 6 | — | 3 | 3 | — | 5 | 3 | — | — | 3 | 5 | 5 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | — | NW 3 | N 3 | NE 3 | ENE 3 | E 4 | E 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | WSW 3 | SW 3 | S 4 | S 4 | WSW 3 | S 6 | WSW 4 | WSW 4 | SSW 4 | SSW 4 | SSW 4 | WSW 4 |
| kJ | — | 2 | 1 | 3 | 4 | 6 | 6 | 7 | 9 | 24 | 26 | 20 | 1 | 2 | 9 | 9 | 2 | 213 | 8 | 9 | 24 | 24 | 16 | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 13 | 145 | 145 | 156 | 307 | 499 | 170 | 499 | 499 | 54 | 9 | 54 | 54 | 377 | 373 | 0 | 0 | 0 | 387 | 54 | 371 | 381 | 54 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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