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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 Tuesday 05 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
8.6° 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: 0.7m 3s primary swell from a South-southwest direction and 0.1m 9s secondary swell from a East direction, 0.1m 7s secondary swell from a East direction (forecast issued at 01:00am May 05). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 2ft (0.6m) | 3s |
| Afternoon (05 May) | 2.5ft (0.8m) | 4s |
| Evening (05 May) | 3ft (0.9m) | 4s |
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 Wed night. Warm (max 20°C on Tue afternoon, min 10°C on Thu morning). Winds decreasing (strong winds from the SSW on Tue night, light winds from the SW by Thu night). | ||||||||||||||||||||||||
Tuesday 5 | Wednesday 6 | Thursday 7 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSW 4 | E 9 | E 9 | SSW 3 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | S 4 | SSW 4 | SE 6 | SE 6 | SE 5 | SE 5 | E 9 | E 9 | E 9 | E 9 | E 9 | |
8 | 6 | 9 | 12 | 17 | 24 | 21 | 21 | 27 | 22 | 27 | 34 | 34 | 27 | 20 | 12 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | cross | cross | cross-off | cross-off | cross | cross-on | on | |
High Tide | 2:10AM2.83m | 2:46PM2.46m | 2:51AM2.78m | 3:29PM2.41m | 3:35AM2.72m | 4:15PM2.37m | ||||||||||||||||||
Low Tide | 8:32AM0.21m | 8:39PM0.58m | 9:15AM0.27m | 9:23PM0.62m | 10:02AM0.33m | 10:11PM0.66m | ||||||||||||||||||
 | |  | | | | |  | |  | |  |  | |  | | | | | | | | | | |
 | — | 5:33 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:46 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 1 | 1 | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 14 | 19 | 20 | 18 | 15 | 15 | 15 | 14 | 14 | 18 | 17 | 16 | 14 | 13 | 13 | 11 | 10 | 13 | 13 | 14 | 13 | 11 |
7 | 7 | 9 | 13 | 13 | 11 | 8 | 8 | 8 | 9 | 8 | 12 | 11 | 10 | 8 | 8 | 10 | 8 | 6 | 9 | 9 | 10 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 6 | SE 8 | ESE 8 | SSE 6 | SE 6 | E 10 | E 9 | E 10 | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | ESE 5 | ESE 5 | E 9 | E 9 | ESE 5 |
 kJ | 7 | 6 | 6 | 2 | 2 | 2 | 1 | 9 | 7 | 3 | 5 | 2 | 2 | 2 | 9 | 12 | 8 | 7 | 7 | 3 | 6 | 6 | 6 | 3 |
Swell 2 Height (m) Direction Period (s) | SE 5 | SE 5 | E 7 | — | — | SE 7 | SE 8 | E 9 | E 10 | SE 8 | E 9 | — | — | — | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | — | ESE 5 | E 9 |
| kJ | 1 | 1 | 1 | — | — | 2 | 2 | 2 | 2 | 3 | 2 | — | — | — | 2 | 2 | 7 | 7 | 6 | 6 | 6 | — | 3 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 8 | E 8 | — | — | — | — | E 9 | — | — | E 9 | — | — | — | — | — | — | — | — | S 6 | — | — | — | — | SSW 7 |
| kJ | 2 | 1 | — | — | — | — | 2 | — | — | 2 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 3 | SSW 3 | SSW 3 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | S 4 | SSW 4 | SW 4 | SW 3 | — | — | — | — | SE 5 | SE 3 | — |
| kJ | 8 | 4 | 9 | 12 | 17 | 24 | 21 | 21 | 27 | 22 | 27 | 34 | 34 | 27 | 20 | 6 | 2 | — | — | — | — | 7 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 124 | 124 | 124 | 1928 | 1928 | 1926 | 1930 | 1623 | 1671 | 1658 | 1206 | 1206 | 1206 | 1205 | 1205 | 124 | 91 | 58 | 72 | 72 | 102 | 85 | 99 | 58 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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