Green Harbor Surf Break

Lat Long: 42.08° N 70.64° W

Green Harbor 48 hour detailed Surf Forecast

Issued: 1 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Green Harbor sea temperature is
20.2° C
0.3° 

Green Harbor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Green Harbor today (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 0.5ft (0.2m), 9s period with E swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 1ft (0.3m), 6s period with ESE swell.
  • Evening surf: Evening surf (19 Aug, local time) - 1ft (0.3m), 6s period with ESE swell.

The current surf forecast for Green Harbor at 9PM is: 0.3m 6s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a East direction, 0.5m 3s secondary swell from a South direction (forecast issued at 01:00pm August 19). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (19 Aug)0.5ft (0.2m)9s
Afternoon (19 Aug)1ft (0.3m)6s
Evening (19 Aug)1ft (0.3m)6s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Sat morning. Warm (max 29°C on Wed afternoon, min 17°C on Sat morning). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
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
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
6
0.3
ESE
6
0.3
ESE
6
0.3
ESE
6
0.3
ESE
6
0.3
ESE
6
0.2
E
8
0.3
ESE
8
0.3
ESE
8
0.3
ESE
8
0.3
E
7
0.4
E
8
0.4
E
8
0.3
E
7
0.3
E
8
0.3
E
7
0.4
E
8
0.4
E
8
0.4
E
8
0.4
E
8
0.4
E
8
Wave Graph
Metric surfscale
Energy kJ
8
8
8
7
7
7
5
13
12
11
10
18
19
9
11
9
23
22
22
21
21
Wind (km/h)
10
SW
15
SW
20
SSW
20
SSW
15
SW
10
WSW
10
WSW
5
W
5
NNE
15
E
5
E
15
NNW
10
WNW
10
WNW
10
NNW
15
NNE
20
NNE
15
NE
10
ENE
10
E
10
ESE
Wind State
on
on
on
on
on
on
on
cross-on
off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
off
off
off
cross-off
cross-off
High Tide
5:12PM2.81m
5:47AM2.45m
6:06PM2.72m
6:45AM2.33m
7:03PM2.65m
Low Tide
10:52AM0.38m
11:32PM0.30m
11:44AM0.52m
00:28AM0.39m
12:40PM0.62m
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:36
7:34
 mm
Temp °C
27
29
29
25
23
22
21
22
25
26
25
21
21
20
19
19
20
20
20
20
21
Feels °C
27
27
26
23
22
22
22
23
26
25
26
19
21
19
18
17
18
18
19
18
20
  • 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
How to use the Wavefinder 

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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