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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 Friday 22 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
12.4° C
(Which is 2.0°C warmer than normal for this time of year)How big are the waves at Green Harbor today?
The current surf forecast for Green Harbor at 11PM is: 0.4m 4s primary swell from a Northeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 07:00pm May 22). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | - | - |
| Afternoon (22 May) | 0.5ft (0.1m) | 13s |
| Evening (22 May) | 1.5ft (0.4m) | 4s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 32mm), heaviest during Sun afternoon. Very mild (max 14°C on Sat morning, min 6°C on Sun morning). Winds increasing (calm on Fri night, fresh winds from the E by Sun afternoon). | ||||||||||||||||||||||||
Fri 22 | Saturday 23 | Sunday 24 | Mon 25 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NE 5 | NE 4 | NE 4 | E 13 | E 13 | E 13 | E 13 | E 13 | E 10 | E 10 | E 12 | SE 10 | E 12 | E 12 | E 12 | E 18 | E 18 | E 18 | ESE 6 | ESE 6 | ESE 7 | E 7 | E 7 | E 7 | |
13 | 7 | 4 | 4 | 4 | 4 | 3 | 3 | 2 | 2 | 3 | 4 | 3 | 3 | 3 | 6 | 6 | 6 | 0 | 90 | 114 | 97 | 94 | 71 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-on | cross-on | on | glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 5:02PM2.85m | 5:21AM3.09m | 6:04PM2.85m | 6:26AM2.94m | 7:06PM2.88m | 7:30AM2.83m | ||||||||||||||||||
Low Tide | 11:03PM0.20m | 11:42AM-0.02m | 00:08AM0.24m | 12:42PM0.09m | 1:13AM0.25m | 1:40PM0.18m | ||||||||||||||||||
 | |  | | | | | | | | | | |  | |  | | |  | | | | | | |
 | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | — | 8:01 | — | — | — | — | — | — | — | 8:02 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — | 8:05 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 10 | 10 | 4 | 2 | 1 | — | — | — | — | |
Temp °C | 11 | 12 | 13 | 13 | 13 | 14 | 13 | 14 | 13 | 13 | 12 | 11 | 10 | 7 | 6 | 8 | 9 | 10 | 11 | 11 | 11 | 10 | 10 | 10 |
7 | 8 | 8 | 9 | 10 | 10 | 9 | 11 | 9 | 8 | 7 | 7 | 6 | 2 | -1 | 2 | 2 | 4 | 7 | 9 | 9 | 7 | 6 | 7 | |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 4 | NE 4 | ENE 4 | ENE 4 | ENE 4 | E 10 | E 10 | E 10 | E 10 | — | NE 3 | SE 9 | E 10 | E 10 | E 10 | E 18 | E 18 | S 8 | — | ESE 7 | E 7 | E 7 | E 7 |
 kJ | 13 | 7 | 4 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | — | 2 | 3 | 2 | 2 | 2 | 6 | 6 | 1 | — | 114 | 97 | 94 | 71 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | NE 4 | — | — | E 10 | SE 10 | E 12 | E 12 | E 12 | E 18 | E 12 | — | — | — | S 9 | E 16 | S 9 | ESE 8 |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | — | 1 | — | — | 2 | 4 | 3 | 3 | 3 | 6 | 3 | — | — | — | 2 | 5 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | — | — | E 12 | — | E 12 | E 12 | — | E 12 | — | — | — | — | E 17 | S 9 | E 16 | S 8 |
| kJ | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | — | — | 3 | — | 3 | 3 | — | 3 | — | — | — | — | 6 | 6 | 5 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | ESE 2 | ESE 3 | E 3 | ESE 4 | SE 4 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | S 9 | — | — | NNW 2 |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 4 | 7 | 18 | 35 | 57 | 66 | 74 | 90 | 73 | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 878 | 1928 | 878 | 872 | 818 | 528 | 794 | 1198 | 742 | 718 | 718 | 718 | 551 | 500 | 395 | 375 | 395 | 276 | 73 | 72 | 0 | 49 | 39 | 9 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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