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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 1 am Monday 25 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 1.3°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 9AM is: 0.9m 7s primary swell from a East direction and 0.1m 16s secondary swell from a East direction, 0.4m 4s secondary swell from a South direction (forecast issued at 01:00am May 25). The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 3ft (0.9m) | 7s |
| Afternoon (25 May) | 2.5ft (0.8m) | 8s |
| Evening (25 May) | 2.5ft (0.7m) | 8s |
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 8mm), mostly falling on Wed night. Warm (max 27°C on Wed afternoon, min 13°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ESE 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SSW 4 | E 14 | E 14 | |
135 | 131 | 103 | 83 | 82 | 64 | 64 | 64 | 63 | 66 | 52 | 55 | 36 | 33 | 21 | 20 | 11 | 10 | 5 | 5 | 4 | 6 | 4 | 4 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | glassy | cross-on | cross-on | cross | on | on | cross-off | cross-off | cross-off | cross-off | cross-on | on | on | on | on | on | on | cross-on | cross | cross | cross-on | glassy | |
High Tide | 7:30AM2.83m | 8:05PM2.91m | 8:33AM2.74m | 9:00PM2.94m | 9:31AM2.68m | 9:49PM2.96m | ||||||||||||||||||
Low Tide | 1:13AM0.25m | 1:40PM0.18m | 2:16AM0.23m | 2:35PM0.26m | 3:15AM0.20m | 3:27PM0.33m | ||||||||||||||||||
 | |  | | |  |  |  |  | | | | | | | | | |  | | | | | | |
 | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:07 | — |
1 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | |
Temp °C | 12 | 14 | 14 | 14 | 13 | 17 | 19 | 19 | 17 | 15 | 15 | 18 | 20 | 21 | 18 | 17 | 16 | 16 | 18 | 25 | 27 | 24 | 20 | 19 |
11 | 15 | 15 | 13 | 12 | 17 | 19 | 19 | 16 | 14 | 14 | 18 | 18 | 18 | 15 | 14 | 13 | 13 | 15 | 23 | 27 | 24 | 18 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | SE 6 |
 kJ | 135 | 131 | 103 | 83 | 82 | 64 | 64 | 64 | 63 | 66 | 52 | 55 | 36 | 33 | 21 | 20 | 11 | 10 | 5 | 5 | 4 | 4 | 4 | 2 |
Swell 2 Height (m) Direction Period (s) | S 8 | E 17 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 7 | — | E 16 | E 15 | E 15 | E 15 | — | — | S 6 | S 7 | S 4 | S 8 | SSW 4 | — | — | — |
| kJ | 1 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | — | 5 | 4 | 4 | 4 | — | — | 1 | 1 | 1 | 1 | 2 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 17 | E 16 | S 8 | S 8 | E 16 | E 16 | E 16 | — | E 16 | E 15 | E 15 | — | — | — | S 7 | E 15 | — | S 7 | S 6 | — | S 6 | E 14 | E 14 |
| kJ | — | 5 | 5 | 1 | 1 | 5 | 5 | 5 | — | 5 | 5 | 4 | — | — | — | 1 | 4 | — | 1 | 1 | — | 1 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | S 8 | S 5 | S 4 | S 4 | — | SSW 4 | — | — | — | — | — | — | — | S 2 | SSW 3 | SW 3 | SW 2 | WSW 2 | WSW 2 | — | — | SSW 4 | — | — |
| kJ | 92 | 7 | 6 | 8 | — | 11 | — | — | — | — | — | — | — | 1 | 3 | 1 | 2 | 1 | 1 | — | — | 6 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 72 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 9 | 9 | 15 | 85 | 6 | 6 | 102 | 54 | 57 | 87 | 87 | 87 | 124 | 396 | 127 | 72 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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