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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 Thursday 14 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
9.8° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 11PM is: 0.7m 6s primary swell from a East direction and 0.2m 10s secondary swell from a East direction (forecast issued at 07:00pm May 14). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | - | - |
| Afternoon (14 May) | 0.5ft (0.2m) | 10s |
| Evening (14 May) | 2.5ft (0.7m) | 5s |
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 3mm), mostly falling on Thu night. Warm (max 26°C on Sun afternoon, min 9°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 14 | Friday 15 | Saturday 16 | Sun 17 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 5 | E 5 | E 6 | E 6 | E 7 | E 9 | E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | ESE 8 | |
27 | 19 | 35 | 68 | 74 | 139 | 363 | 377 | 399 | 399 | 341 | 276 | 225 | 173 | 141 | 106 | 78 | 56 | 52 | 35 | 35 | 22 | 21 | 13 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | on | on | on | on | on | on | on | on | on | cross-on | glassy | |
High Tide | 10:09PM3.11m | 10:43AM2.85m | 10:57PM3.28m | 11:34AM2.91m | 11:45PM3.42m | 12:24PM2.95m | ||||||||||||||||||
Low Tide | 3:54PM0.22m | 4:30AM-0.09m | 4:42PM0.15m | 5:20AM-0.26m | 5:30PM0.09m | 6:11AM-0.37m | ||||||||||||||||||
 |  |  |  | |  | | | | |  | | |  | | | | |  | | |  | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | 7:58 |
1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 11 | 11 | 10 | 10 | 11 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 18 | 21 | 22 | 16 | 14 | 14 | 15 | 18 | 23 | 25 |
11 | 12 | 10 | 9 | 8 | 8 | 9 | 8 | 6 | 6 | 7 | 7 | 7 | 7 | 15 | 16 | 17 | 11 | 9 | 9 | 11 | 16 | 23 | 25 | |
Swell 1 Height (m) Direction Period (s) | E 5 | E 5 | E 6 | E 6 | E 7 | E 9 | E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | ESE 8 |
 kJ | 27 | 19 | 35 | 68 | 74 | 139 | 363 | 377 | 399 | 399 | 341 | 276 | 225 | 173 | 141 | 106 | 78 | 56 | 52 | 35 | 35 | 22 | 21 | 13 |
Swell 2 Height (m) Direction Period (s) | E 10 | ENE 6 | E 10 | S 6 | E 9 | ENE 7 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 9 | S 9 | S 8 | — | — | — | — | — | S 8 | S 5 | SSW 6 | S 6 |
| kJ | 8 | 14 | 8 | 3 | 42 | 60 | 16 | 2 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | — | — | — | — | — | 1 | 8 | 13 | 7 |
Swell 3 Height (m) Direction Period (s) | SSE 5 | E 10 | S 6 | ESE 8 | S 7 | S 10 | — | — | — | — | — | S 10 | — | — | — | — | — | — | — | — | SE 8 | S 8 | S 8 | S 8 |
| kJ | 5 | 8 | 3 | 14 | 9 | 2 | — | — | — | — | — | 30 | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 5 | NNE 4 | — | — | — | — | SSW 2 | S 3 | SSW 3 | SSW 3 | SSW 3 | SW 3 | WSW 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 11 | 6 | — | — | — | — | 1 | 7 | 9 | 8 | 8 | 3 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 96 | 6 | 15 | 15 | 1 | 1 | 0 | 0 | 49 | 49 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 81 | 124 | 6 | 81 | 57 | 57 | 57 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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