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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 Saturday 23 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
12.9° C
(Which is 2.2°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 12AM is: 0.1m 12s primary swell from a East direction and 0.1m 10s secondary swell from a East direction (forecast issued at 07:00pm May 23). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 0.5ft (0.1m) | 12s |
| Afternoon (24 May) | 0.5ft (0.1m) | 18s |
| Evening (24 May) | 0.5ft (0.1m) | 18s |
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 29mm), heaviest during Sun afternoon. Very mild (max 19°C on Tue afternoon, min 8°C on Sun afternoon). Winds decreasing (fresh winds from the E on Sun night, calm by Mon night). | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 10 | E 10 | E 12 | E 12 | E 12 | E 12 | E 12 | E 18 | E 18 | E 18 | E 18 | ESE 6 | ESE 6 | ESE 6 | ESE 9 | E 8 | E 6 | E 6 | E 6 | ESE 8 | E 8 | E 8 | E 8 | E 8 | |
2 | 2 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 | 6 | 175 | 156 | 82 | 126 | 90 | 28 | 25 | 26 | 26 | 46 | 48 | 48 | 32 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | cross | cross | glassy | cross-on | glassy | glassy | cross-off | cross-off | cross | cross-on | |
High Tide | 6:04PM2.85m | 6:26AM2.94m | 7:06PM2.88m | 7:30AM2.83m | 8:05PM2.91m | 8:33AM2.74m | ||||||||||||||||||
Low Tide | 00:08AM0.24m | 12:42PM0.09m | 1:13AM0.25m | 1:40PM0.18m | 2:16AM0.23m | |||||||||||||||||||
 | |  | | | |  | | | |  | | | | | | | |  | | | | |  | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — |
 | — | 8:02 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | 8:06 |
— | — | — | — | — | — | 1 | 3 | 5 | 5 | 2 | 1 | 1 | 1 | 5 | 5 | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 12 | 12 | 11 | 11 | 9 | 8 | 9 | 10 | 10 | 12 | 14 | 14 | 13 | 12 | 15 | 18 | 17 | 15 | 13 | 12 | 14 | 17 |
9 | 9 | 9 | 9 | 7 | 5 | 4 | 3 | 3 | 3 | 4 | 8 | 13 | 14 | 11 | 11 | 15 | 18 | 18 | 16 | 12 | 11 | 14 | 16 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 18 | — | — | E 17 | ESE 6 | ESE 9 | E 8 | E 6 | E 6 | E 6 | E 5 | E 8 | E 8 | E 8 | E 8 |
 kJ | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | — | — | 6 | 82 | 126 | 90 | 22 | 25 | 24 | 13 | 46 | 48 | 48 | 32 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 7 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | — | E 18 | — | — | E 16 | E 16 | S 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 16 | E 16 | E 15 | E 15 |
| kJ | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | — | 6 | — | — | 5 | 5 | 1 | 28 | 23 | 26 | 26 | 5 | 5 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | S 6 | E 10 | — | — | — | — | E 18 | E 18 | — | — | — | — | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 15 | SSE 8 | E 15 |
| kJ | — | 1 | 2 | — | — | — | — | 6 | 6 | — | — | — | — | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 4 |
Wind waves Height (m) Direction Period (s) | E 3 | ESE 3 | ESE 3 | ESE 4 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | S 9 | S 4 | S 4 | — | — | — | — | — | — | — | — |
| kJ | 1 | 3 | 4 | 4 | 9 | 16 | 19 | 17 | 22 | 49 | 104 | 175 | 156 | 79 | 9 | 13 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 106 | 106 | 106 | 718 | 718 | 718 | 501 | 501 | 396 | 375 | 261 | 132 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 6 | 39 | 43 | 2 | 6 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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