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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 Saturday 25 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 9PM is: 0.3m 13s primary swell from a East-northeast direction and 0.4m 5s secondary swell from a Northeast direction, 0.3m 8s secondary swell from a East direction (forecast issued at 01:00pm April 25). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 0.5ft (0.2m) | 15s |
| Afternoon (25 Apr) | 0.5ft (0.2m) | 14s |
| Evening (25 Apr) | 1ft (0.3m) | 13s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Mild temperatures (max 9°C on Mon morning, min 5°C on Tue morning). Winds increasing (calm on Sun morning, fresh winds from the NE by Tue morning). | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 14 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | NE 13 | NE 13 | NE 13 | NE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 10 | ENE 12 | ENE 10 | ENE 9 | NE 12 | NE 12 | NE 12 | NE 12 | E 7 | ENE 8 | ENE 8 | ENE 8 | |
21 | 20 | 19 | 36 | 34 | 44 | 43 | 42 | 42 | 51 | 49 | 28 | 18 | 13 | 18 | 9 | 6 | 6 | 6 | 6 | 251 | 316 | 438 | 497 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | cross-on | on | cross-on | glassy | glassy | cross-off | off | off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 7:31PM2.74m | 7:54AM2.92m | 8:33PM2.81m | 8:58AM2.88m | 9:30PM2.90m | |||||||||||||||||||
Low Tide | 1:08PM0.07m | 1:33AM0.29m | 2:10PM0.11m | 2:38AM0.23m | 3:08PM0.14m | 3:38AM0.17m | ||||||||||||||||||
 | | |  | | | | | |  | | |  | | | | | | |  | | | |  | |
 | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — |
 | — | — | 7:34 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:36 | — | — | — | — | 7:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 9 | 9 | 6 | 7 | 6 | 6 | 6 | 5 |
1 | 2 | 2 | 3 | 2 | 2 | 4 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 3 | -1 | 1 | -1 | -2 | -1 | -2 | |
Swell 1 Height (m) Direction Period (s) | E 7 | ENE 14 | NE 4 | NE 5 | NE 5 | ENE 8 | NE 13 | NE 13 | NE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | NE 12 | NE 12 | NE 12 | NE 12 | E 12 | SE 12 | SSE 12 | SE 12 |
 kJ | 3 | 20 | 5 | 6 | 6 | 11 | 43 | 42 | 42 | 51 | 49 | 28 | 18 | 9 | 18 | 9 | 6 | 6 | 6 | 6 | 3 | 5 | 14 | 6 |
Swell 2 Height (m) Direction Period (s) | ENE 14 | E 8 | E 8 | E 8 | E 8 | NE 5 | E 8 | E 7 | E 7 | NE 4 | S 7 | NE 4 | ENE 12 | ENE 12 | NE 12 | NE 12 | NE 12 | NE 12 | NE 12 | — | — | — | — | S 8 |
| kJ | 21 | 5 | 12 | 11 | 10 | 6 | 10 | 9 | 4 | 1 | 1 | 1 | 14 | 13 | 6 | 6 | 6 | 6 | 6 | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | S 6 | E 6 | ENE 14 | ENE 14 | ENE 13 | NE 13 | NE 5 | NE 4 | NE 4 | S 6 | — | S 6 | S 8 | S 8 | — | S 7 | S 7 | — | — | — | — | — | — | — |
| kJ | 1 | 3 | 19 | 36 | 34 | 44 | 3 | 3 | 1 | 1 | — | 1 | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | — | — | — | — | — | — | — | ENE 4 | ENE 4 | — | — | ENE 2 | NE 3 | NE 4 | NE 4 | ENE 4 | ENE 5 | ENE 5 | E 7 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 4 | 6 | — | — | — | — | — | — | — | 2 | 2 | — | — | 1 | 5 | 10 | 22 | 32 | 48 | 75 | 251 | 316 | 438 | 497 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 832 | 1205 | 52 | 2 | 2 | 2 | 2 | 2 | 52 | 551 | 551 | 515 | 85 | 106 | 106 | 276 | 276 | 302 | 1824 | 132 | 0 | 60 | 55 | 132 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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