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Surf Forecasts

Green Harbor surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 pm Saturday 10 May 2025 EDT
Forecast 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
10.0° 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 1AM is: 0.4m 9s primary swell from a East-southeast direction and 0.6m 6s secondary swell from a North-northeast direction, 0.2m 2s secondary swell from a West direction (forecast issued at 07:00pm May 10). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (11 May)1.5ft (0.5m)9s
Afternoon (11 May)1.5ft (0.4m)9s
Evening (11 May)1ft (0.3m)9s

Table - waves today at Green Harbor. (Swell directed towards the surf break)

Hourly12 Days
Massachusetts Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sun
18
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
NE
0.5
E
0.7
NNE
0.4
ESE
0.5
E
0.5
E
0.4
ESE
0.4
ESE
0.4
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.3
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.3
ENE
0.1
E
0.1
SE
0.2
ENE
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.3
SE
0.3
SE
0.1
E
0.1
E
0.1
E
0.5
SE
0.5
SE
0.2
ESE
0.1
E
0.2
ESE
0.2
ESE
0.1
E
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.6
WNW
0.4
NW
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
Period(s) (?)6969999999999998888888888312841212121111111144111114448108710777774478889
Wave
Graph
(?)Metric surfscale
Energy (?)414129274445282828161616161515777776666633223333222222349962652555558556668
Wind
(km/h)
25
WNW
15
WNW
15
WSW
15
W
15
W
20
NW
25
NW
20
NNW
20
NNW
15
NNW
10
NNW
5
NNE
10
SW
10
SSW
15
S
20
SSW
25
SW
25
SW
20
SW
20
SW
15
WSW
10
W
0
NE
10
E
10
SSE
10
SE
15
ESE
15
SE
15
SSE
15
SE
20
SE
20
SE
15
SE
10
ESE
15
ESE
10
ESE
10
ENE
10
ENE
10
ENE
10
ENE
15
E
10
ESE
10
ESE
10
SSE
5
SSW
5
SSE
5
ESE
10
ESE
15
S
20
SSW
20
SW
15
SW
20
WSW
20
W
20
WNW
20
WNW
20
WNW
20
W
15
WNW
20
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		cross-
on		cross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoncross-
on		cross-
on		ononononononcross-
on		glasscross-
off		cross-
on		crosscross-
off		crosscrosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		crossglassglasscross-
off		cross-
off		cross-
on		cross-
on		ononcross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		crosscross-
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
Low Tide
/ height (m)
4:54PM
0.44
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
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sun
18
Sunrise-----5:26-------5:24-------5:24-------5:22-------5:22-------5:20-------5:20------
Sunset7:50-------7:51-------7:52-------7:53-------7:54-------7:55-------7:57-------7:58---
cloudclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearpart cloudclearpart cloudpart cloudcloudcloudcloudcloudlight rainlight rainlight rainlight rainlight raincloudlight rainlight raincloudcloudcloudcloudcloudcloudpart cloudcloudcloudcloudcloudcloudcloudpart cloudrain showersclearpart cloudlight rainlight rainpart cloudclearclearclearclearclearcloudpart cloud
Rain (mm)
-------------------------12221-11--------------1--11--------
Temp. °C141515141412141617151311111115171713131415151716161414141313121313131314141414151516151515151718211815151617202324201816
Feels °C (?)10111210107891010987710111079101214171516131312111091011111113131313141316151516161718201613131414171921161513
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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.

View detailed surf forecast for Green Harbor at:
surf-forecast.com

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