Green Harbor surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 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 2PM is: 0.3m 9s primary swell from a Southeast direction and 0.7m 3s secondary swell from a South-southwest direction (forecast issued at 07:00am March 31). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (31 Mar)1.5ft (0.5m)3s
Afternoon (31 Mar)1ft (0.3m)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
Fri
03
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SSW
0.5
SW
0.2
ESE
0.3
SE
0.3
SE
0.7
SSW
0.7
SSW
0.9
SSW
0.8
SSW
0.3
SE
0.3
SE
0.3
SE
0.2
ESE
0.4
SE
0.2
ESE
0.1
SE
0.1
E
1.5
ENE
1.5
ENE
1.5
ENE
1.6
ENE
1.5
ENE
1.3
ENE
1.3
ENE
Period(s) (?)33991044441010101091010106666666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4581414131421181515159279420170176209170136125
Wind
(km/h)
20
SSW
25
SSW
25
SW
25
SW
20
SSW
0
W
15
SW
30
SW
25
SW
20
SSW
25
SW
15
W
20
NE
20
NE
20
ENE
20
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
15
E
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononglassonononononcross-
on
offoffoffoffcross-
off
offcross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
11:06AM
2.99
11:30PM
2.95
11:52AM
2.95
12:11AM
2.99
12:35PM
2.89
12:49AM
2.99
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
Fri
03
Sunrise-6:26-------6:26-------6:24------
Sunset----7:06-------7:07-------7:07---
cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
light rain
cloud
cloud
light snow
cloud
light snow
light snow
cloud
cloud
cloud
cloud
cloud
Rain (mm)
-35---------1-----------
Temp. °C1010111816910121213182253210-1-100001
Feels °C (?)55614138767914200-3-3-5-7-8-8-6-6-6-5-3
  • 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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