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Green Harbor Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Green Harbor surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 7 am Saturday 02 May 2026 EDTForecast update in hr min s Forecast update imminent
Green Harbor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Green Harbor sea temperature is
8.3° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 11AM is: 0.8m 9s primary swell from a East direction and 0.4m 3s secondary swell from a South direction (forecast issued at 07:00am May 02). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 May) | 2.5ft (0.8m) | 9s |
| Afternoon (02 May) | 2.5ft (0.8m) | 9s |
| Evening (02 May) | 2.5ft (0.8m) | 9s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Sat night. Very mild (max 17°C on Mon afternoon, min 7°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the WSW by Mon morning). | ||||||||||||||||||||||||
Saturday 2 | Sunday 3 | Monday 4 | Tue 5 | |||||||||||||||||||||
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 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | |
96 | 96 | 96 | 96 | 99 | 101 | 127 | 127 | 99 | 96 | 71 | 90 | 88 | 89 | 126 | 160 | 165 | 132 | 106 | 80 | 59 | 24 | 14 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | cross-on | cross-on | on | cross-on | glassy | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-on | cross-on | on | on | on | on | on | on | on | on | |
High Tide | 12:51PM2.64m | 00:55AM2.92m | 1:28PM2.58m | 1:32AM2.87m | 2:06PM2.52m | |||||||||||||||||||
Low Tide | 6:36AM0.09m | 6:42PM0.42m | 7:14AM0.12m | 7:20PM0.48m | 7:52AM0.16m | 7:58PM0.53m | ||||||||||||||||||
 |  |  | |  |  | | | | | | | |  | | | |  | | | | | | | |
 | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | 5:33 |
 | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:44 | — | — | 7:45 |
— | — | — | — | 1 | 1 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 10 | 14 | 13 | 10 | 9 | 9 | 8 | 7 | 7 | 7 | 10 | 12 | 11 | 9 | 7 | 7 | 10 | 15 | 17 | 17 | 13 | 11 | 11 |
4 | 5 | 8 | 7 | 7 | 7 | 7 | 5 | 4 | 3 | 1 | 5 | 6 | 5 | 4 | 1 | 1 | 4 | 8 | 11 | 11 | 7 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 96 | 96 | 96 | 96 | 99 | 101 | 127 | 127 | 99 | 96 | 71 | 90 | 88 | 89 | 126 | 160 | 165 | 132 | 106 | 80 | 59 | 24 | 14 | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | S 6 | SSE 3 | S 4 | — | SW 4 | S 5 | S 5 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNW 4 | S 8 | S 8 | WNW 3 | E 9 | — | — | S 5 |
| kJ | — | — | — | — | — | 1 | 1 | 2 | — | 1 | 2 | 2 | 6 | 6 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | S 8 | SSW 8 | SSW 8 | SE 9 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 8 | 6 | 13 | 6 | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | S 3 | S 3 | S 3 | S 3 | S 4 | — | NW 2 | NNW 3 | NNW 3 | N 4 | — | N 4 | WNW 3 | WNW 3 | WNW 3 | WSW 3 | WSW 3 | SW 3 | SSW 3 | SSW 4 | SSW 3 | SSW 3 |
| kJ | — | 1 | 2 | 5 | 3 | 2 | 4 | — | 1 | 1 | 6 | 7 | — | 9 | 2 | 3 | 3 | 2 | 3 | 6 | 10 | 10 | 6 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 32 | 2 | 15 | 6 | 1 | 1 | 0 | 1 | 0 | 49 | 39 | 15 | 49 | 39 | 1 | 1 | 1 | 1 | 341 | 1 | 2 | 81 | 124 | 124 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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