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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 pm Friday 29 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
12.8° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Green Harbor today (29 May):
- Morning surf: Morning surf (29 May, local time) - 1ft (0.3m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 2.5ft (0.7m), 8s period with ENE swell.
- Evening surf: Evening surf (29 May, local time) - 2.5ft (0.7m), 8s period with ENE swell.
The current surf forecast for Green Harbor at 7PM is: 0.7m 8s primary swell from a East-northeast direction and 0.3m 3s secondary swell from a South-southeast direction (forecast issued at 01:00pm May 29). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 1ft (0.3m) | 8s |
| Afternoon (29 May) | 2.5ft (0.7m) | 8s |
| Evening (29 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 Sat afternoon. Very mild (max 16°C on Fri afternoon, min 7°C on Sat afternoon). Winds decreasing (gales from the NNE on Sat morning, calm by Sun night). | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | NE 8 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
13 | 58 | 52 | 52 | 59 | 68 | 70 | 71 | 400 | 2775 | 2352 | 1645 | 1134 | 1034 | 623 | 500 | 364 | 295 | 243 | 199 | 184 | 154 | 151 | 122 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross | glassy | cross-on | cross-on | cross-on | cross-on | |
High Tide | 11:09AM2.58m | 11:14PM2.93m | 11:50AM2.54m | 11:52PM2.90m | 12:29PM2.50m | 00:30AM2.87m | ||||||||||||||||||
Low Tide | 4:56PM0.46m | 5:34AM0.17m | 5:36PM0.51m | 6:13AM0.18m | 6:15PM0.54m | 6:51AM0.20m | ||||||||||||||||||
 |  | |  |  | |  | | | | | |  |  | |  | | | | | | | | | |
 | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — |
 | — | — | — | 8:08 | — | — | — | — | — | — | — | 8:09 | — | — | — | — | — | — | — | 8:09 | — | — | — | 8:10 |
— | — | — | 1 | 3 | 3 | — | — | 3 | 4 | 1 | — | — | — | — | — | — | — | — | 3 | — | — | — | 1 | |
Temp °C | 16 | 15 | 16 | 15 | 14 | 13 | 9 | 9 | 8 | 7 | 9 | 11 | 11 | 10 | 9 | 11 | 14 | 14 | 15 | 12 | 12 | 12 | 11 | 12 |
13 | 12 | 12 | 13 | 11 | 8 | 3 | 5 | -5 | -5 | -1 | 3 | 5 | 6 | 5 | 8 | 11 | 10 | 12 | 11 | 9 | 9 | 8 | 11 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | NE 8 | SSW 7 | S 7 | — | — | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 13 | 58 | 52 | 52 | 59 | 68 | 70 | 71 | 153 | 9 | 4 | — | — | 823 | 623 | 500 | 364 | 295 | 243 | 199 | 184 | 154 | 151 | 122 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | — | — | SE 8 | SE 3 | — | SE 5 | ENE 10 | — | — | — | — | — | — | — | S 14 | — | — | SW 4 | SSW 4 | — | SW 4 | W 3 |
| kJ | 1 | 1 | — | — | 3 | 2 | — | 1 | 82 | — | — | — | — | — | — | — | 4 | — | — | 2 | 1 | — | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 8 | S 6 | E 8 | — | — | — | — | — | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 1 | 1 | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 4 | — | SE 2 | SSE 3 | SSE 2 | W 2 | NW 2 | NW 3 | NE 8 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | — | — | — | SW 3 | — | — | — | — | — |
| kJ | 9 | — | 1 | 1 | 1 | 1 | 2 | 3 | 400 | 2775 | 2352 | 1645 | 1134 | 1034 | 281 | — | — | — | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 977 | 85 | 515 | 2 | 515 | 81 | 85 | 655 | 571 | 655 | 529 | 55 | 32 | 32 | 1 | 1 | 0 | 0 | 127 | 0 | 1 | 1 | 1 | 1 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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