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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 Wednesday 13 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
9.6° C
(Which is slightly warmer than usual)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 2AM is: 0.2m 10s primary swell from a East direction and 0.2m 7s secondary swell from a East direction, 0.5m 3s secondary swell from a South-southeast direction (forecast issued at 07:00pm May 13). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 0.5ft (0.2m) | 10s |
| Afternoon (14 May) | 0.5ft (0.2m) | 10s |
| Evening (14 May) | 0.5ft (0.2m) | 10s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu night. Warm (max 22°C on Sat afternoon, min 9°C on Fri afternoon). Winds decreasing (fresh winds from the SSW on Wed night, light winds from the SSE by Thu night). | ||||||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | S 4 | E 10 | E 10 | SSE 5 | E 10 | E 10 | E 10 | E 10 | E 10 | E 7 | E 7 | E 7 | E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | |
13 | 13 | 8 | 8 | 15 | 8 | 8 | 8 | 8 | 8 | 226 | 159 | 155 | 431 | 509 | 463 | 454 | 391 | 334 | 259 | 216 | 169 | 138 | 103 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | off | off | off | cross-off | cross-on | cross-on | on | cross-on | cross-on | cross-on | |
High Tide | 9:22PM2.92m | 9:53AM2.77m | 10:09PM3.11m | 10:43AM2.85m | 10:57PM3.28m | 11:34AM2.91m | ||||||||||||||||||
Low Tide | 3:07PM0.29m | 3:39AM0.10m | 3:54PM0.22m | 4:30AM-0.09m | 4:42PM0.15m | 5:20AM-0.26m | ||||||||||||||||||
 |  | | | |  | | |  |  | | |  | | | | | |  | | |  | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | 7:53 | — | — | — | — | — | — | — | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | 7:57 |
— | — | — | — | — | — | — | — | 3 | 6 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | |
Temp °C | 16 | 14 | 14 | 14 | 13 | 14 | 13 | 14 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 12 | 18 | 22 |
9 | 8 | 9 | 9 | 9 | 9 | 8 | 9 | 8 | 9 | 10 | 11 | 11 | 8 | 7 | 5 | 5 | 6 | 7 | 5 | 6 | 8 | 15 | 19 | |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 10 | E 10 | E 10 | E 10 | E 10 | E 6 | E 7 | E 7 | E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 |
 kJ | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 136 | 159 | 155 | 431 | 509 | 463 | 454 | 391 | 334 | 259 | 216 | 169 | 138 | 103 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — | — | — | — | S 7 | E 9 | S 11 | S 10 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | WNW 3 | S 8 |
| kJ | 8 | 8 | 8 | 8 | 8 | — | — | — | — | — | — | 3 | 43 | 2 | 17 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 1 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 7 | E 7 | — | — | — | — | — | — | — | — | S 7 | S 7 | S 7 | — | — | — | — | — | S 10 | S 10 | — | SSW 3 | — |
| kJ | 2 | 2 | 1 | — | — | — | — | — | — | — | — | 15 | 4 | 4 | — | — | — | — | — | 2 | 2 | — | 1 | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 3 | SSE 3 | SSE 5 | SE 5 | ESE 5 | ESE 6 | ESE 5 | E 6 | E 7 | — | — | — | — | ENE 10 | — | NNE 5 | — | W 2 | — | WSW 2 | — | SSW 4 |
| kJ | 13 | 13 | 8 | 6 | 15 | 26 | 69 | 98 | 87 | 114 | 226 | — | — | — | — | 173 | — | 17 | — | 1 | — | 1 | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 888 | 959 | 647 | 341 | 466 | 298 | 221 | 124 | 124 | 102 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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