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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 7 pm Tuesday 05 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
8.6° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 3AM is: 0.9m 4s primary swell from a South-southwest direction and 0.2m 8s secondary swell from a East-southeast direction, 0.1m 10s secondary swell from a East direction (forecast issued at 07:00pm May 05). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 May) | 3ft (0.9m) | 4s |
| Afternoon (06 May) | 3ft (0.9m) | 4s |
| Evening (06 May) | 2.5ft (0.8m) | 4s |
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 7mm), mostly falling on Wed night. Very mild (max 18°C on Wed morning, min 7°C on Thu night). Winds decreasing (strong winds from the SSW on Tue night, calm by Thu afternoon). | ||||||||||||||||||||||||
Tue 5 | Wednesday 6 | Thursday 7 | Fri 8 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SE 6 | SE 5 | SE 5 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 10 | E 10 | |
30 | 34 | 27 | 28 | 23 | 28 | 34 | 34 | 28 | 24 | 13 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 35 | 48 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | on | on | cross-on | on | on | cross-on | cross | cross | cross-on | glassy | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | glassy | |
High Tide | 2:46PM2.46m | 2:51AM2.78m | 3:29PM2.41m | 3:35AM2.72m | 4:15PM2.37m | 4:24AM2.67m | ||||||||||||||||||
Low Tide | 8:39PM0.58m | 9:15AM0.27m | 9:23PM0.62m | 10:02AM0.33m | 10:11PM0.66m | 10:51AM0.38m | ||||||||||||||||||
 |  |  | | |  |  | | |  | | | | | | | |  | | | | | | | |
 | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — |
 | 7:45 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:46 | — | — | — | — | — | — | 7:47 |
— | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 15 | 15 | 14 | 14 | 15 | 18 | 17 | 16 | 14 | 13 | 13 | 11 | 10 | 13 | 14 | 15 | 15 | 12 | 9 | 7 | 9 | 12 | 14 |
10 | 7 | 8 | 7 | 8 | 9 | 12 | 10 | 10 | 8 | 9 | 11 | 8 | 5 | 10 | 12 | 13 | 12 | 7 | 4 | 2 | 3 | 7 | 11 | |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | ESE 7 | ESE 8 | SE 6 | SE 6 | E 10 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | ESE 5 | ESE 5 | E 9 | ESE 5 | ESE 5 | E 9 | E 8 | E 8 | E 10 | E 10 |
 kJ | 2 | 7 | 5 | 6 | 5 | 5 | 2 | 5 | 5 | 11 | 12 | 8 | 7 | 7 | 5 | 3 | 6 | 5 | 2 | 6 | 6 | 6 | 35 | 48 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | SSE 6 | E 10 | E 9 | E 9 | — | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | — | E 9 | E 9 | ESE 5 | ESE 5 | ESE 8 | ESE 7 | — |
| kJ | 2 | 2 | 3 | 2 | 2 | 2 | — | 2 | 2 | 2 | 2 | 7 | 7 | 7 | 6 | 6 | — | 6 | 6 | 2 | 2 | 6 | 5 | — |
Swell 3 Height (m) Direction Period (s) | — | — | E 9 | — | — | — | — | — | — | — | — | E 10 | — | E 7 | E 7 | — | — | E 9 | E 9 | SE 9 | SE 8 | E 11 | S 6 | S 7 |
| kJ | — | — | 2 | — | — | — | — | — | — | — | — | 7 | — | 1 | 1 | — | — | 2 | 2 | 3 | 3 | 2 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SW 3 | — | — | N 3 | — | ESE 5 | — | — | — | — | NNW 2 | NNW 3 | SSW 7 |
| kJ | 30 | 34 | 27 | 28 | 23 | 28 | 34 | 34 | 28 | 24 | 13 | 2 | — | — | 1 | — | 5 | — | — | — | — | 1 | 1 | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1926 | 593 | 91 | 1623 | 1206 | 1206 | 1206 | 1206 | 333 | 543 | 124 | 86 | 72 | 72 | 72 | 92 | 85 | 57 | 85 | 106 | 58 | 56 | 6 | 6 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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