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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 Sunday 24 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
12.5° C
(Which is 1.7°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 3AM is: 1.8m 7s primary swell from a Southeast direction and 1.3m 7s secondary swell from a East-southeast direction (forecast issued at 07:00pm May 24). An open ocean swell of 0.1m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 3.5ft (1.0m) | 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 ForecastHeavy rain (total 20mm), heaviest during Sun night. Warm (max 26°C on Wed afternoon, min 11°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Sun 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||||||||
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 18 | E 18 | ESE 6 | SE 7 | E 7 | E 7 | E 6 | E 8 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | SSW 4 | |
6 | 6 | 161 | 340 | 146 | 97 | 48 | 100 | 84 | 64 | 38 | 35 | 69 | 51 | 52 | 36 | 34 | 21 | 20 | 11 | 11 | 10 | 5 | 6 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | glassy | glassy | cross-on | cross | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | on | on | on | on | cross-on | cross-on | cross | |
High Tide | 7:06PM2.88m | 7:30AM2.83m | 8:05PM2.91m | 8:33AM2.74m | 9:00PM2.94m | 9:31AM2.68m | ||||||||||||||||||
Low Tide | 1:13AM0.25m | 1:40PM0.18m | 2:16AM0.23m | 2:35PM0.26m | 3:15AM0.20m | |||||||||||||||||||
 |  |  |  | | | | |  |  |  | | |  | | | | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — |
 | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | 8:07 |
5 | 6 | 6 | 1 | 1 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 11 | 11 | 13 | 14 | 14 | 14 | 13 | 16 | 18 | 18 | 17 | 14 | 14 | 15 | 20 | 22 | 19 | 17 | 17 | 17 | 20 | 24 | 26 |
4 | 5 | 7 | 12 | 14 | 14 | 13 | 12 | 16 | 18 | 18 | 16 | 12 | 13 | 14 | 19 | 19 | 16 | 14 | 14 | 15 | 18 | 23 | 25 | |
Swell 1 Height (m) Direction Period (s) | E 18 | E 13 | — | ESE 7 | E 7 | E 7 | E 6 | E 8 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
 kJ | 6 | 3 | — | 163 | 146 | 97 | 48 | 100 | 84 | 64 | 38 | 35 | 69 | 51 | 52 | 36 | 34 | 21 | 20 | 11 | 11 | 10 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 18 | — | S 8 | E 17 | E 16 | ESE 8 | E 16 | E 16 | E 16 | E 6 | ENE 6 | — | E 16 | E 15 | E 15 | E 15 | — | E 15 | — | S 7 | SSW 5 | SSW 5 | — |
| kJ | 3 | 6 | — | 1 | 6 | 5 | 38 | 5 | 5 | 5 | 20 | 11 | — | 5 | 4 | 4 | 4 | — | 4 | — | 1 | 4 | 4 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 17 | E 16 | S 8 | S 8 | E 16 | — | E 16 | — | E 16 | E 15 | E 15 | SE 7 | — | — | — | S 7 | — | S 7 | S 7 | — |
| kJ | — | — | — | — | 5 | 5 | 1 | 1 | 5 | — | 5 | — | 5 | 5 | 4 | 2 | — | — | — | 1 | — | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | ESE 5 | ESE 6 | ESE 6 | SE 7 | S 5 | S 5 | S 4 | S 4 | — | — | — | — | — | — | — | — | SSE 2 | S 3 | SW 3 | SW 3 | SW 2 | WSW 2 | — | SSW 4 |
| kJ | 59 | 110 | 161 | 340 | 11 | 7 | 7 | 13 | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 2 | 2 | 1 | — | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 504 | 775 | 106 | 2 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 9 | 9 | 39 | 102 | 52 | 124 | 124 | 85 | 81 | 57 | 54 | 124 | 131 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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