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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 1 am Sunday 10 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
9.5° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 8AM is: 0.4m 9s primary swell from a East direction and 0.5m 5s secondary swell from a East-southeast direction (forecast issued at 01:00am May 10). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 1.5ft (0.4m) | 9s |
| Afternoon (10 May) | 1.5ft (0.4m) | 9s |
| Evening (10 May) | 2ft (0.6m) | 8s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 9°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 9 | 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 8 | E 8 | E 8 | |
25 | 23 | 24 | 25 | 24 | 24 | 46 | 74 | 71 | 68 | 66 | 64 | 61 | 61 | 68 | 71 | 66 | 63 | 44 | 42 | 41 | 40 | 40 | 41 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross | cross | cross | cross-off | off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | |
High Tide | 6:12AM2.60m | 6:53PM2.45m | 7:09AM2.60m | 7:45PM2.57m | 8:05AM2.64m | 8:34PM2.73m | ||||||||||||||||||
Low Tide | 11:59PM0.66m | 12:35PM0.41m | 00:56AM0.59m | 1:27PM0.39m | 1:52AM0.47m | 2:18PM0.34m | ||||||||||||||||||
 | |  |  |  | | |  | | | | | | |  | | | | | | | | | | |
 | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:51 | — | — | — | — | — | — | — | 7:52 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 17 | 20 | 20 | 18 | 16 | 13 | 11 | 10 | 13 | 14 | 15 | 14 | 13 | 11 | 9 | 9 | 11 | 13 | 14 | 12 | 10 |
10 | 11 | 10 | 16 | 17 | 17 | 16 | 13 | 8 | 6 | 5 | 9 | 10 | 11 | 11 | 9 | 6 | 4 | 4 | 7 | 9 | 9 | 6 | 5 | |
Swell 1 Height (m) Direction Period (s) | ENE 9 | SE 5 | ESE 5 | ESE 5 | E 9 | E 9 | E 8 | E 9 | 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 8 | E 8 | E 8 |
 kJ | 25 | 23 | 17 | 11 | 24 | 24 | 46 | 74 | 71 | 68 | 66 | 64 | 61 | 61 | 68 | 71 | 66 | 63 | 44 | 42 | 41 | 40 | 40 | 41 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 9 | E 9 | E 9 | ESE 5 | ESE 5 | E 16 | E 16 | S 4 | E 9 | S 8 | E 12 | N 4 | N 4 | — | E 15 | E 15 | E 14 | S 6 | — | N 4 | N 4 | — | — |
| kJ | 3 | 23 | 24 | 25 | 8 | 9 | 5 | 5 | 1 | 52 | 4 | 3 | 1 | 1 | — | 4 | 4 | 4 | 1 | — | 5 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 13 | E 13 | E 16 | ESE 8 | SSW 8 | S 8 | S 8 | S 8 | ESE 8 | S 8 | E 12 | E 14 | — | — | S 7 | E 15 | E 15 | E 11 | S 6 | S 11 | E 11 | E 11 |
| kJ | — | 3 | 3 | 3 | 5 | 6 | 13 | 12 | 5 | 5 | 7 | 4 | 3 | 4 | — | — | 1 | 4 | 4 | 3 | 1 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SE 5 | — | — | — | SSE 2 | SSW 3 | SSW 3 | SSW 2 | NNW 2 | NNW 3 | NNW 3 | N 4 | — | — | SSE 2 | — | NNW 2 | NNW 3 | NNW 4 | N 4 | — | — | SSE 3 | S 3 |
| kJ | 18 | — | — | — | 1 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | — | — | 1 | — | 1 | 2 | 4 | 5 | — | — | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 85 | 6 | 6 | 6 | 6 | 6 | 2 | 2 | 9 | 2 | 39 | 9 | 43 | 43 | 1 | 1 | 9 | 32 | 43 | 43 | 43 | 43 | 85 | 43 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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