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Green Harbor Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Green Harbor surfForecast / Massachusetts / USA
12 Day Weather and Surf, issued 7 pm Saturday 10 May 2025 EDT
Best Forecast Surf Conditions for Green Harbor this week:
The most powerful waves expected at Green Harbor in the next 12 days are 0.5m 9s and forecast to arrive on Sunday (May 11) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (May 11) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 11th May) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Green Harbor over the next 12 days.
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thu 22 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 12 | 11 | 11 | 11 | 14 | 8 | 7 | 7 | 7 | 4 | 8 | 9 | 9 | 10 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 27 | 28 | 28 | 16 | 15 | 7 | 7 | 6 | 6 | 2 | 3 | 3 | 2 | 2 | 4 | 6 | 5 | 5 | 5 | 5 | 6 | 8 | 3 | 4 | 27 | 46 | 53 | 223 | 432 | 323 | 403 | 504 | 590 | 771 | 445 | 235 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- off | cross- off | off | cross- on | on | on | glass | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross- off | cross- on | on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross | off | off | cross- on | off | cross | on | on | cross- on |
High Tide / height (m) | 11:10PM 2.83 | 11:40AM 2.58 | 11:45PM 2.84 | 12:17PM 2.55 | 12:20AM 2.84 | 12:53PM 2.53 | 12:55AM 2.84 | 1:30PM 2.50 | 1:32AM 2.84 | 2:09PM 2.47 | 2:11AM 2.83 | 2:50PM 2.45 | 2:54AM 2.82 | 3:35PM 2.44 | 3:41AM 2.80 | 4:24PM 2.44 | 4:32AM 2.78 | 5:16PM 2.48 | 5:29AM 2.76 | 6:11PM 2.57 | 6:28AM 2.76 | 7:06PM 2.71 | 7:28AM 2.78 | |||||||||||||
Low Tide / height (m) | 5:25AM 0.23 | 5:31PM 0.48 | 6:02AM 0.20 | 6:07PM 0.51 | 6:39AM 0.19 | 6:44PM 0.53 | 7:17AM 0.18 | 7:21PM 0.55 | 7:56AM 0.19 | 8:01PM 0.57 | 8:37AM 0.21 | 8:43PM 0.59 | 9:22AM 0.23 | 9:29PM 0.60 | 10:10AM 0.24 | 10:20PM 0.60 | 11:01AM 0.25 | 11:16PM 0.56 | 11:54AM 0.24 | 12:15AM 0.48 | 12:48PM 0.23 | 1:15AM 0.35 | 1:43PM 0.19 | |||||||||||||
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thu 22 | |||||||||||||||||||||||||
| Sunrise | - | 5:26 | - | - | 5:24 | - | - | 5:24 | - | - | 5:22 | - | - | 5:22 | - | - | 5:20 | - | - | 5:20 | - | - | 5:18 | - | - | 5:18 | - | - | 5:16 | - | - | 5:16 | - | - | 5:15 | - |
| Sunset | - | - | 7:51 | - | - | 7:52 | - | - | 7:53 | - | - | 7:54 | - | - | 7:55 | - | - | 7:57 | - | - | 7:58 | - | - | 7:59 | - | - | 8:00 | - | - | 8:00 | - | - | 8:01 | - | - | 8:01 |
 |  | | | | |  |  | |  |  | |  | | | |  |  |  | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 7 | 1 | 2 | - | - | - | - | - | 1 | 2 | - | - | - | - | 1 | 4 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 17 | 15 | 15 | 17 | 15 | 17 | 16 | 14 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 21 | 18 | 20 | 24 | 20 | 15 | 11 | 8 | 7 | 8 | 8 | 10 | 10 | 10 | 12 | 12 | 13 | 12 | 15 |
| Feels °C (?) | 11 | 8 | 10 | 10 | 10 | 11 | 12 | 17 | 15 | 13 | 10 | 10 | 13 | 13 | 14 | 16 | 17 | 20 | 16 | 17 | 21 | 16 | 11 | 7 | 4 | 2 | 4 | 5 | 6 | 6 | 7 | 8 | 8 | 10 | 9 | 12 |
Short Range Forecast: Mostly dry. Very mild (max 17°C on Sun afternoon, min 11°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Tue night. Warm (max 21°C on Fri afternoon, min 12°C on Wed morning). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 7mm), mostly falling on Sun night. Warm (max 24°C on Sat afternoon, min 7°C on Sun night). Wind will be generally light. | Long Range Forecast: Mostly dry. Very mild (max 15°C on Thu afternoon, min 7°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Green Harbor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Green Harbor Surf forecast
The above surf forecast table for Green Harbor provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Green Harbor can be found by selecting the local surf guide option on the grey menu. Our Green Harbor surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Green Harbor) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Green Harbor may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Green Harbor is 5 km (3 miles) from Duxbury. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Duxbury. Duxbury has rooms for a wide range of budgets as well as car hire and transport links.
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