Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
18.6°C
0.4° 

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


How big are the waves at Plum Island today (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 2ft (0.6m), 7s period with ESE swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 3.5ft (1.0m), 7s period with ENE swell.
  • Evening surf: Evening surf (05 Sep, local time) - 3.5ft (1.1m), 7s period with ENE swell.

The current surf forecast for Plum Island at 4AM is: 0.6m 7s primary swell from a East-southeast direction and 0.3m 2s secondary swell from a North direction (forecast issued at 07:00pm September 04). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (05 Sep)2ft (0.6m)7s
Afternoon (05 Sep)3.5ft (1.0m)7s
Evening (05 Sep)3.5ft (1.1m)7s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 26°C on Mon afternoon, min 14°C on Sun morning). Wind will be generally light.

Fri
4
Saturday
5
Sunday
6
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)
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
ESE
7
0.7
ESE
7
0.7
ESE
7
0.6
ESE
7
0.6
ESE
7
0.6
ESE
7
1
NE
5
1
ENE
7
1
E
7
0.9
E
7
0.9
E
7
1.2
ENE
7
1.3
ENE
7
1.3
ENE
7
1.3
ENE
8
1.2
ENE
7
1
ENE
7
0.8
ENE
7
0.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
48
48
48
36
38
41
45
96
96
90
72
135
149
172
176
143
91
57
40
Wind (km/h)
5
SW
10
WNW
15
WNW
10
NW
15
N
15
NNE
15
NNE
15
NE
5
NE
5
WNW
15
N
15
NNE
15
N
15
N
10
N
5
E
10
SSE
0
SW
10
NW
Wind State
glassy
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
glassy
cross
cross-on
cross
cross
cross
on
cross
glassy
cross-off
High Tide
5:46PM2.65m
6:26AM2.21m
6:49PM2.63m
7:34AM2.19m
7:57PM2.64m
Low Tide
00:54AM0.11m
1:03PM0.38m
2:04AM0.11m
2:16PM0.38m
cloud
clear
clear
part cloud
clear
cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
part cloud
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:10
7:08
 mm
1
1
Temp °C
23
22
20
18
16
17
17
18
18
17
17
16
15
14
16
19
19
19
18
Feels °C
24
21
18
16
14
15
15
17
18
17
16
14
13
12
15
18
17
19
16
  • 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 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.


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