Green Harbor surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Tuesday 31 Mar 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
4.0° C
(Which is normal for this time of year)

How big are the waves at Green Harbor today?

The current surf forecast for Green Harbor at 6AM is: 0.4m 3s primary swell from a South-southwest direction and 0.1m 5s secondary swell from a Southeast direction, 0.1m 8s secondary swell from a East direction (forecast issued at 01:00am March 31). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (31 Mar)1.5ft (0.4m)3s
Afternoon (31 Mar)0.5ft (0.2m)10s
Evening (31 Mar)2.5ft (0.7m)4s

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


Updates in  hr  min  s Forecast update imminent
Tuesday
31
Wednesday
01
Thursday
02
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
SW
0.5
SW
0.4
SSW
0.4
SSW
0.2
ESE
0.2
ESE
0.3
SE
0.3
SE
0.7
SSW
0.8
SSW
0.3
SE
0.4
SE
0.4
SE
0.2
ESE
0.2
ESE
0.3
SE
0.2
ESE
0.3
SE
1.5
ENE
1.7
ENE
1.7
ENE
1.5
ENE
1.5
ENE
1.4
ENE
Period(s) (?)33331010101044101010101010109666666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9544991515111715242599149120202209193187145
Wind
(km/h)
25
SW
20
SW
20
SSW
25
SSW
25
SSW
25
SW
25
SSW
15
SW
15
SW
30
SW
25
SW
25
SSW
20
WSW
20
N
20
NNE
20
NE
20
ENE
20
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononononononononcross-
off
offoffoffoffoffoffoffcross-
off
offoff
High Tide
/ height (m)
10:45PM
2.88
11:06AM
2.99
11:30PM
2.95
11:52AM
2.95
12:11AM
2.99
12:35PM
2.89
Low Tide
/ height (m)
4:48AM
0.07
5:14PM
0.03
5:36AM
0.02
5:56PM
0.07
6:19AM
-0.01
6:35PM
0.13
Tuesday
31
Wednesday
01
Thursday
02
Sunrise---6:26-------6:26-------6:24----
Sunset------7:06-------7:07-------7:07-
part cloud
part cloud
cloud
light rain
light rain
part cloud
part cloud
part cloud
rain showers
rain showers
cloud
part cloud
cloud
light rain
rain showers
cloud
light snow
cloud
cloud
light snow
cloud
cloud
cloud
cloud
Rain (mm)
---32---11---11---------
Temp. °C111110101218161010121212181432110-10000
Feels °C (?)666571412766771611-3-4-5-5-7-8-7-6-6-5
  • 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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