- Forecast
- Maps
- Live
- Weather State
- Spot Information
Green Harbor Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Green Harbor surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 1 am Thursday 28 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
12.3° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today (28 May):
- Morning surf: Morning surf (28 May, local time) - 0.5ft (0.1m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 0.5ft (0.1m), 10s period with E swell.
- Evening surf: Evening surf (28 May, local time) - 1.5ft (0.5m), 5s period with NE swell.
The current surf forecast for Green Harbor at 6AM is: 0.1m 7s primary swell from a Southeast direction (forecast issued at 01:00am May 28). An open ocean swell of 0.2m 5s is not directed at the surf break, a second open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 0.5ft (0.1m) | 8s |
| Afternoon (28 May) | 0.5ft (0.1m) | 10s |
| Evening (28 May) | 1.5ft (0.5m) | 5s |
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 23mm), heaviest during Fri night. Very mild (max 15°C on Fri afternoon, min 6°C on Sat morning). Winds increasing (light winds from the NNW on Thu night, gales from the NNE by Sat morning). | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 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 13 | SE 6 | SE 8 | E 8 | E 11 | NE 4 | NE 5 | NE 5 | ENE 9 | ENE 9 | NE 4 | NE 5 | NE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | NE 8 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 | |
4 | 2 | 3 | 3 | 3 | 9 | 10 | 8 | 15 | 15 | 14 | 14 | 13 | 13 | 42 | 42 | 62 | 53 | 182 | 2547 | 2251 | 1907 | 1475 | 1058 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | off | cross-off | cross-on | off | cross-off | cross-on | on | on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:23AM2.63m | 10:34PM2.95m | 11:09AM2.58m | 11:14PM2.93m | 11:50AM2.54m | |||||||||||||||||||
Low Tide | 4:07AM0.17m | 4:14PM0.40m | 4:53AM0.16m | 4:56PM0.46m | 5:34AM0.17m | 5:36PM0.51m | ||||||||||||||||||
 |  |  |  | | | |  | | | | |  | |  |  |  | | | | | | | | |
 | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:09 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 7 | 4 | — | 3 | 3 | 1 | 1 | — | — | |
Temp °C | 16 | 15 | 14 | 13 | 13 | 12 | 13 | 14 | 12 | 11 | 11 | 13 | 13 | 15 | 13 | 13 | 9 | 8 | 7 | 6 | 7 | 9 | 11 | 10 |
13 | 12 | 11 | 10 | 10 | 11 | 12 | 11 | 8 | 9 | 9 | 10 | 10 | 11 | 10 | 10 | 3 | 2 | -6 | -6 | -3 | 0 | 5 | 6 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 8 | SE 6 | SE 8 | NE 4 | NE 5 | NE 5 | ENE 9 | NE 4 | NE 4 | NE 5 | NE 5 | NE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | NE 8 | SSW 6 | S 7 | — | — | — |
 kJ | 2 | 2 | 3 | 1 | 3 | 9 | 10 | 7 | 15 | 9 | 13 | 14 | 12 | 10 | 42 | 42 | 62 | 53 | 182 | 4 | 1 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | S 5 | S 6 | E 8 | E 11 | NE 10 | ENE 9 | ENE 9 | SE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 2 | SE 8 | S 3 | SE 5 | ENE 9 | — | — | — | — | — |
| kJ | — | 2 | 3 | 1 | 2 | 4 | 8 | 8 | 3 | 15 | 14 | 13 | 13 | 13 | 1 | 3 | 1 | 1 | 8 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 13 | S 9 | S 9 | SE 8 | S 6 | SE 8 | SE 8 | SE 9 | S 7 | SE 8 | E 8 | E 8 | E 8 | E 8 | E 9 | — | — | — | S 6 | — | — | — | — | — |
| kJ | 4 | 2 | 2 | 3 | 1 | 3 | 3 | 3 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | — | — | — | 11 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NE 4 | N 4 | — | — | NE 5 | NNE 4 | — | — | — | — | — | S 2 | — | NW 3 | NNW 4 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 |
| kJ | 10 | 14 | 11 | 11 | 8 | 3 | — | — | 7 | 7 | — | — | — | — | — | 1 | — | 2 | 10 | 2547 | 2251 | 1907 | 1475 | 1058 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 127 | 106 | 156 | 106 | 85 | 174 | 58 | 106 | 208 | 174 | 174 | 745 | 1204 | 1204 | 52 | 515 | 131 | 529 | 888 | 656 | 945 | 1671 | 49 | 0 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Green Harbor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest