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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 pm Monday 27 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 2AM is: 0.7m 9s primary swell from a East direction and 0.2m 8s secondary swell from a East-northeast direction (forecast issued at 01:00pm April 27). 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) | 9s |
| Evening (28 Apr) | 5ft (1.6m) | 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 2mm), mostly falling on Wed night. Very mild (max 11°C on Mon afternoon, min 5°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 9 | ENE 9 | ENE 9 | E 7 | E 7 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | |
8 | 8 | 8 | 14 | 22 | 81 | 89 | 223 | 201 | 252 | 290 | 372 | 517 | 563 | 644 | 567 | 477 | 400 | 333 | 325 | 320 | 341 | 363 | 356 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | glassy | glassy | glassy | cross | |
High Tide | 8:58AM2.88m | 9:30PM2.90m | 9:56AM2.85m | 10:20PM2.96m | 10:47AM2.81m | 11:04PM2.99m | ||||||||||||||||||
Low Tide | 3:08PM0.14m | 3:38AM0.17m | 4:00PM0.17m | 4:30AM0.11m | 4:45PM0.22m | 5:17AM0.08m | ||||||||||||||||||
 | | |  | | | | | | | |  |  | | |  |  | | | | |  | | | |
 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:39 | — |
 | — | — | 7:36 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | 7:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 11 | 11 | 11 | 10 | 9 | 8 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
6 | 6 | 7 | 6 | 4 | 3 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 3 | 3 | 5 | 6 | 7 | 7 | 6 | |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | E 7 | ENE 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 10 | E 10 |
 kJ | 8 | 8 | 8 | 14 | 8 | 81 | 89 | 138 | 201 | 252 | 290 | 372 | 517 | 563 | 644 | 567 | 477 | 400 | 333 | 325 | 320 | 341 | 363 | 356 |
Swell 2 Height (m) Direction Period (s) | NE 12 | SE 6 | ESE 7 | ENE 9 | E 9 | ENE 8 | — | — | — | — | — | S 12 | — | — | — | S 12 | S 11 | NNW 4 | — | S 11 | SE 11 | SSE 10 | SSE 12 | SE 12 |
| kJ | 6 | 2 | 4 | 8 | 7 | 6 | — | — | — | — | — | 3 | — | — | — | 3 | 2 | 5 | — | 2 | 4 | 10 | 13 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 5 | NE 12 | NE 12 | NE 12 | E 12 | E 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 | — | — | — | — |
| kJ | 1 | 6 | 6 | 6 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 2 | NE 3 | ENE 3 | NNE 3 | E 7 | — | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 9 | NE 4 | NE 10 | NE 10 | NE 10 | N 4 | N 4 | N 4 | — | SE 2 | — | — | — | — |
| kJ | 1 | 2 | 2 | 1 | 22 | — | 48 | 223 | 100 | 114 | 138 | 23 | 229 | 260 | 250 | 10 | 11 | 5 | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 106 | 525 | 106 | 106 | 72 | 106 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 60 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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