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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 26 Apr 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
7.1° C
(Which is normal for this time of year)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 6AM is: 0.4m 13s primary swell from a Northeast direction and 0.3m 8s secondary swell from a East direction (forecast issued at 01:00am April 26). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | 1.5ft (0.4m) | 13s |
| Afternoon (26 Apr) | 1.5ft (0.4m) | 12s |
| Evening (26 Apr) | 1ft (0.3m) | 12s |
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 5mm), mostly falling on Tue night. Very mild (max 10°C on Mon morning, min 4°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NE 13 | NE 13 | NE 13 | NE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 10 | ENE 12 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 7 | E 7 | E 7 | ENE 7 | E 8 | E 8 | E 9 | E 9 | E 9 | |
44 | 43 | 42 | 42 | 51 | 49 | 28 | 18 | 27 | 18 | 9 | 8 | 8 | 8 | 8 | 65 | 82 | 159 | 220 | 300 | 341 | 463 | 529 | 463 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 7:54AM2.92m | 8:33PM2.81m | 8:58AM2.88m | 9:30PM2.90m | 9:56AM2.85m | 10:20PM2.96m | ||||||||||||||||||
Low Tide | 1:33AM0.29m | 2:10PM0.11m | 2:38AM0.23m | 3:08PM0.14m | 3:38AM0.17m | 4:00PM0.17m | ||||||||||||||||||
 | |  |  | | |  | |  | |  | | | | | | | | | | | |  | | |
 | — | 5:46 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:36 | — | — | — | — | — | — | — | 7:37 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | |
Temp °C | 6 | 5 | 6 | 8 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 10 | 10 | 9 | 7 | 7 | 6 | 5 | 4 | 5 | 5 | 5 | 5 | 5 |
2 | 2 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 4 | 2 | 2 | 0 | -1 | -2 | -1 | -1 | -1 | 0 | 0 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | NE 13 | NE 13 | NE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 10 | ENE 12 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ESE 7 | ENE 9 | ENE 9 | E 12 | SE 12 | SE 12 | SE 12 | S 12 | E 9 | E 9 |
 kJ | 11 | 43 | 42 | 42 | 51 | 49 | 28 | 18 | 27 | 18 | 9 | 8 | 8 | 8 | 5 | 7 | 7 | 3 | 5 | 6 | 6 | 3 | 529 | 463 |
Swell 2 Height (m) Direction Period (s) | NE 13 | E 8 | E 7 | E 7 | NE 4 | NE 4 | NE 4 | ENE 12 | S 8 | NE 13 | NE 12 | NE 12 | NE 12 | NE 12 | ENE 9 | NE 12 | E 12 | — | — | — | — | — | — | S 10 |
| kJ | 44 | 10 | 9 | 4 | 1 | 1 | 1 | 14 | 1 | 6 | 6 | 6 | 6 | 6 | 8 | 6 | 3 | — | — | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | NE 5 | NE 5 | ENE 4 | NE 4 | S 6 | S 7 | S 6 | — | S 8 | S 8 | S 7 | — | E 12 | NE 12 | NE 12 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 3 | 2 | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | — | 3 | 6 | 6 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NE 2 | NE 3 | NE 4 | NE 4 | ENE 4 | E 4 | E 7 | E 7 | E 7 | ENE 7 | E 8 | E 8 | E 9 | NE 9 | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 5 | 6 | 10 | 13 | 14 | 65 | 82 | 159 | 220 | 300 | 341 | 463 | 186 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 52 | 551 | 551 | 515 | 106 | 106 | 275 | 106 | 106 | 276 | 1811 | 106 | 85 | 94 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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