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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 Sunday 31 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
13.6° C
(Which is 2.1°C warmer than normal for this time of year)How big are the waves at Plum Island today (31 May):
- Morning surf: Morning surf (31 May, local time) - 4.5ft (1.3m), 9s period with E swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 4.5ft (1.3m), 9s period with E swell.
- Evening surf: Evening surf (31 May, local time) - 4ft (1.2m), 8s period with E swell.
The current surf forecast for Plum Island at 10AM is: 1.3m 9s primary swell from a East direction and 0.3m 8s secondary swell from a East-southeast direction (forecast issued at 07:00am May 31). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 4.5ft (1.3m) | 9s |
| Afternoon (31 May) | 4.5ft (1.3m) | 9s |
| Evening (31 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 ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Very mild (max 19°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 8 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | ENE 9 | |
227 | 264 | 245 | 252 | 210 | 205 | 169 | 169 | 169 | 191 | 107 | 165 | 142 | 145 | 115 | 109 | 86 | 89 | 69 | 73 | 55 | 40 | 42 | 28 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | off | glassy | cross | cross-on | cross-off | cross-off | cross | |
High Tide | 12:52PM2.15m | 00:51AM2.49m | 1:27PM2.16m | 1:27AM2.51m | 2:02PM2.17m | |||||||||||||||||||
Low Tide | 7:13AM-0.04m | 7:21PM0.33m | 7:54AM-0.00m | 8:00PM0.38m | 8:34AM0.06m | 8:38PM0.44m | ||||||||||||||||||
 |  | |  |  | | | |  | | | |  | | | | | | | | | |  | | |
 | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | 5:05 |
 | — | — | — | — | — | 8:13 | — | — | — | — | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:15 | — | 8:15 |
— | — | — | — | 2 | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 8 | 11 | 17 | 16 | 15 | 12 | 11 | 9 | 9 | 9 | 9 | 10 | 11 | 12 | 12 | 11 | 11 | 12 | 18 | 19 | 19 | 18 | 17 | 14 |
4 | 7 | 14 | 13 | 13 | 10 | 9 | 7 | 6 | 4 | 4 | 7 | 9 | 9 | 9 | 8 | 8 | 9 | 16 | 16 | 16 | 16 | 14 | 10 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | ENE 9 |
 kJ | 227 | 264 | 245 | 252 | 210 | 205 | 169 | 169 | 169 | 136 | 107 | 165 | 142 | 145 | 115 | 109 | 86 | 89 | 69 | 73 | 55 | 40 | 42 | 28 |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 8 | WNW 3 | — | — | E 15 | — | — | — | — | — | — | — | — | — | S 9 | — | — | — | SE 9 | SE 9 | SE 9 | S 4 | SSE 4 |
| kJ | 44 | 13 | 1 | — | — | 4 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 3 | 3 | 3 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 12 | SE 9 | SE 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | — | — | — | — | — | — | — | E 8 | ENE 4 | — | — | — | — | — | — | — | — | SSE 3 | S 4 | S 4 | S 3 | — |
| kJ | — | 1 | — | — | — | — | — | — | — | 191 | 26 | — | — | — | — | — | — | — | — | 3 | 13 | 15 | 6 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 25 | 81 | 25 | 25 | 4 | 0 | 0 | 0 | 0 | 0 | 1276 | 75 | 0 | 67 | 110 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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