Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Friday 17 Apr 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Plum Island sea temperature is
6.3° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 8AM is: 0.3m 8s primary swell from a Southeast direction and 0.4m 5s secondary swell from a South-southeast direction (forecast issued at 01:00am April 17). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (17 Apr)1ft (0.3m)8s
Afternoon (17 Apr)1ft (0.3m)8s
Evening (17 Apr)1ft (0.3m)8s

Table - waves today at Plum Island. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Friday
17
Saturday
18
Sunday
19
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
2
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.4
SSE
0.3
SE
0.3
SE
0.3
SE
0.3
SSE
0.3
SE
0.7
NE
0.8
ENE
0.9
ENE
1
E
1.1
E
1.2
E
1.3
E
1.4
E
1.4
E
1.4
E
1.3
E
1.1
E
1
E
0.8
E
Period(s) (?)888868998845556778888877
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1110101012101213119132842548012416822322923319613810870
Wind
(km/h)
5
SE
10
N
5
W
5
S
15
ENE
15
NNE
10
NE
5
NNW
5
NE
15
NNE
20
NNE
20
NE
20
ENE
20
ENE
15
ENE
10
E
5
ESE
5
S
10
S
15
S
15
SSW
20
NW
20
NW
15
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
off
offglasscross-
on
cross-
on
cross-
on
glassglasscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
ononcross-
on
glasscrosscrosscross-
off
cross-
off
cross-
off
off
High Tide
/ height (m)
11:42PM
2.80
12:11PM
2.64
12:28AM
2.91
12:59PM
2.65
1:15AM
2.98
1:48PM
2.62
Low Tide
/ height (m)
6:31AM
-0.24
6:43PM
-0.08
7:17AM
-0.35
7:27PM
-0.09
8:05AM
-0.40
Friday
17
Saturday
18
Sunday
19
Sunrise---5:58-------5:56-------5:56----
Sunset------7:27-------7:28-------7:29-
light rain
light rain
cloud
light rain
cloud
light rain
light rain
cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
Rain (mm)
21-3-12-------------2221
Temp. °C79121311910111111776554456791076
Feels °C (?)5711139581110933101013336622
  • 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 Plum Island 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest