Green Harbor surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Thursday 14 May 2026 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
9.8° C
(Which is slightly warmer than usual)

How big are the waves at Green Harbor today?

The current surf forecast for Green Harbor at 12PM is: 0.2m 10s primary swell from a East direction and 0.2m 7s secondary swell from a East direction (forecast issued at 07:00am May 14). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (14 May)2.5ft (0.7m)4s
Afternoon (14 May)0.5ft (0.2m)10s
Evening (14 May)3ft (0.9m)6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu night. Warm (max 21°C on Sat afternoon, min 9°C on Fri night). Wind will be generally light.

Thursday
14
Friday
15
Saturday
16
Sun
17
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
2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
1
2
1
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
SSE
5
0.7
SE
4
0.2
E
10
0.2
E
10
0.2
E
10
0.9
E
5
1
E
6
1.1
E
6
1
E
7
0.9
E
10
1.4
E
10
1.4
E
10
1.4
ENE
10
1.4
ENE
10
1.3
ENE
9
1.2
ENE
9
1.1
ENE
9
1
E
9
0.9
ENE
9
0.8
ENE
9
0.7
E
9
0.7
E
9
0.6
E
9
0.5
E
8
Wave Graph
Metric surfscale
Energy kJ
14
17
8
8
8
45
73
98
86
148
363
369
386
370
308
265
216
169
138
108
78
74
54
37
Wind (km/h)
25
SSE
20
SSE
25
ESE
25
ESE
20
SE
5
WNW
5
SW
10
SW
5
WSW
5
WNW
10
NE
15
NE
20
NNE
15
NNE
10
NNW
10
WNW
10
WSW
15
WSW
10
SW
15
SSW
25
SSW
25
SSW
25
SW
25
SW
cross
cross
cross-off
cross-off
cross-off
glassy
on
on
on
glassy
off
off
off
off
cross-off
cross-on
cross-on
on
on
on
on
on
on
on
High Tide
9:53AM2.77m
10:09PM3.11m
10:43AM2.85m
10:57PM3.28m
11:34AM2.91m
11:45PM3.42m
Low Tide
3:39AM0.10m
3:54PM0.22m
4:30AM-0.09m
4:42PM0.15m
5:20AM-0.26m
5:30PM0.09m
cloud
cloud
cloud
part cloud
light rain
mod rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
5:20
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:54
7:55
7:57
7:58
1
9
1
Temp °C
13
14
15
14
13
12
11
10
10
11
12
11
10
9
9
10
10
11
17
21
21
15
14
14
8
10
10
9
10
12
10
8
8
10
10
8
6
5
7
8
7
8
14
17
16
10
9
9
Swell 1
Height (m)
Direction
Period (s)
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
10
0.2
E
10
0.9
E
5
1
E
6
1.1
E
6
1
E
7
0.9
ENE
6
1.4
E
10
1.4
E
10
1.4
ENE
10
1.4
ENE
10
1.3
ENE
9
1.2
ENE
9
1.1
ENE
9
1
E
9
0.9
ENE
9
0.8
ENE
9
0.7
E
9
0.7
E
9
0.6
E
9
0.5
E
8
Energy kJ
4
4
4
8
8
45
73
98
86
66
363
369
386
370
308
265
216
169
138
108
78
74
54
37
Swell 2
Height (m)
Direction
Period (s)
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
S
6
0.5
E
9
0.9
E
10
0.3
S
9
0.2
S
9
0.2
S
9
0.2
S
8
0.2
S
8
0.2
S
8
0.2
S
8
0.2
S
8
0.2
S
8
0.1
SE
8
Energy kJ
8
8
8
8
8
3
43
148
16
6
6
6
6
6
6
6
6
3
Swell 3
Height (m)
Direction
Period (s)
0.1
E
8
0.2
S
6
0.3
S
6
0.2
S
7
0.5
E
5
Energy kJ
1
3
7
4
15
Wind waves
Height (m)
Direction
Period (s)
0.6
SSE
5
0.7
SE
4
0.6
ESE
4
0.9
ESE
6
1
E
6
1.1
ESE
6
0.9
ENE
10
0.3
SW
2
0.3
SSW
2
0.6
S
3
0.5
SSW
3
0.6
SSW
3
0.6
SSW
3
Energy kJ
14
17
13
47
64
77
140
1
1
8
7
7
7
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
295
261
124
124
102
1
2
1
1
0
0
0
0
0
0
1
1
1
1
2
2
81
6
6
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
2
2
2
3
1
1
2
1
2
3
2
2
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
1
1
1
2
3
2
3
2
1
2
3
3
3
2
3
3
1
2
2
3
1
Header Global
Rating
(10 max)
5
5
4
5
5
5
6
5
5
5
5
5
5
5
5
5
4
5
5
6
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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.


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