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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 28 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
7.3° 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 7AM is: 1.1m 8s primary swell from a East direction and 0.9m 8s secondary swell from a East direction (forecast issued at 01:00am April 28). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 3.5ft (1.1m) | 8s |
| Afternoon (28 Apr) | 4.5ft (1.3m) | 8s |
| Evening (28 Apr) | 6ft (1.9m) | 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 6mm), mostly falling on Thu afternoon. Mild temperatures (max 9°C on Thu night, min 5°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | |
78 | 111 | 157 | 191 | 223 | 264 | 575 | 495 | 618 | 651 | 772 | 674 | 544 | 400 | 380 | 326 | 311 | 318 | 281 | 276 | 282 | 240 | 240 | 240 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off | off | off | off | glassy | glassy | off | glassy | cross-off | cross-off | cross-off | cross | cross-on | |
High Tide | 9:56AM2.85m | 10:20PM2.96m | 10:47AM2.81m | 11:04PM2.99m | 11:32AM2.76m | |||||||||||||||||||
Low Tide | 3:38AM0.17m | 4:00PM0.17m | 4:30AM0.11m | 4:45PM0.22m | 5:17AM0.08m | 5:27PM0.29m | ||||||||||||||||||
 | |  | | |  |  |  | | |  | | | | | | | | | |  | |  | | |
 | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:39 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 1 | — | |
Temp °C | 9 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 |
3 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 4 | 3 | 4 | 5 | 6 | 5 | 6 | 5 | 6 | 6 | 7 | 6 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | S 12 | E 8 | E 8 | E 8 | E 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 7 | 111 | 3 | 191 | 223 | 264 | 402 | 495 | 618 | 651 | 772 | 674 | 544 | 400 | 380 | 326 | 311 | 318 | 281 | 276 | 282 | 240 | 240 | 240 |
Swell 2 Height (m) Direction Period (s) | NE 12 | — | — | — | — | — | — | — | — | — | S 12 | S 12 | — | — | — | SE 9 | S 11 | SE 9 | SE 9 | S 12 | SE 12 | SE 12 | SE 12 | S 9 |
| kJ | 5 | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | 3 | 2 | 3 | 3 | 3 | 6 | 6 | 5 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 11 | S 9 | S 11 | S 12 | S 9 | — | — | — | S 12 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 2 | 3 | 2 | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | E 9 | ENE 8 | E 8 | ENE 8 | ENE 8 | NE 9 | E 9 | NE 10 | NE 10 | N 4 | N 5 | N 4 | NE 10 | NE 9 | — | — | — | — | — | — | — | — | — | — |
| kJ | 78 | 47 | 157 | 100 | 106 | 145 | 575 | 225 | 273 | 28 | 43 | 19 | 204 | 141 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 106 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 49 | 49 | 0 | 55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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