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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 09 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
9.3° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 10AM is: 0.5m 9s primary swell from a East direction (forecast issued at 07:00am May 09). An open ocean swell of 0.2m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 1.5ft (0.5m) | 9s |
| Afternoon (09 May) | 1.5ft (0.5m) | 9s |
| Evening (09 May) | 1.5ft (0.4m) | 9s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 31mm), heaviest during Sat night. Very mild (max 19°C on Sun afternoon, min 7°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | |
57 | 57 | 40 | 39 | 40 | 26 | 25 | 25 | 24 | 24 | 25 | 25 | 24 | 22 | 50 | 68 | 69 | 68 | 71 | 71 | 93 | 89 | 66 | 63 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross | cross-off | cross-off | glassy | cross | glassy | glassy | cross-on | on | cross-off | |
High Tide | 5:17AM2.62m | 5:59PM2.37m | 6:12AM2.60m | 6:53PM2.45m | 7:09AM2.60m | 7:45PM2.57m | ||||||||||||||||||
Low Tide | 11:42AM0.41m | 11:59PM0.66m | 12:35PM0.41m | 00:56AM0.59m | 1:27PM0.39m | 1:52AM0.47m | ||||||||||||||||||
 |  |  | | |  |  |  | | |  |  | | | | | | | | | | |  | | |
 | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | 5:24 |
 | — | — | — | — | 7:49 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:51 | — | — | 7:52 |
— | 1 | — | 1 | 3 | 7 | 3 | — | — | — | — | 2 | 1 | — | — | 1 | 1 | 2 | 3 | 5 | 1 | — | — | — | |
Temp °C | 10 | 9 | 13 | 15 | 13 | 12 | 12 | 12 | 12 | 13 | 18 | 19 | 18 | 18 | 17 | 12 | 11 | 9 | 7 | 7 | 9 | 9 | 9 | 9 |
6 | 7 | 10 | 11 | 9 | 7 | 8 | 9 | 9 | 11 | 16 | 18 | 18 | 17 | 15 | 9 | 8 | 7 | 4 | 5 | 7 | 7 | 7 | 5 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | SE 6 | SE 5 | SE 5 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 |
 kJ | 57 | 57 | 40 | 39 | 40 | 26 | 25 | 25 | 24 | 12 | 10 | 7 | 24 | 22 | 50 | 68 | 69 | 68 | 71 | 71 | 93 | 89 | 66 | 63 |
Swell 2 Height (m) Direction Period (s) | — | SSW 5 | — | — | — | — | E 13 | SE 5 | SE 5 | E 9 | E 9 | E 9 | ESE 5 | SE 5 | E 16 | SE 7 | S 7 | N 3 | N 3 | — | — | E 15 | E 15 | E 15 |
| kJ | — | 2 | — | — | — | — | 4 | 4 | 7 | 24 | 25 | 25 | 5 | 6 | 5 | 19 | 4 | 2 | 1 | — | — | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | — | — | — | — | — | — | E 13 | E 13 | E 16 | SE 7 | SE 6 | E 16 | S 7 | S 8 | E 12 | E 13 | S 7 | — | E 15 | E 14 | E 14 | S 7 |
| kJ | 4 | 4 | — | — | — | — | — | — | 3 | 3 | 5 | 2 | 2 | 5 | 4 | 4 | 3 | 3 | 4 | — | 4 | 4 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | S 3 | S 3 | S 3 | S 3 | SSW 3 | S 3 | S 6 | SSE 7 | — | SSW 4 | SSW 4 | — | N 3 | — | — | — | — | — | — | — |
| kJ | — | — | — | 4 | 8 | 5 | 8 | 3 | 3 | 2 | 17 | 57 | — | 5 | 3 | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 2 | 81 | 6 | 312 | 124 | 54 | 85 | 43 | 43 | 6 | 6 | 6 | 6 | 43 | 15 | 1 | 2 | 1 | 2 | 1 | 1 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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