Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 am 04 Oct 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
15.6°C
1.0° 

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 (04 Oct):

  • Morning surf: Morning surf (04 Oct, local time) - 1.5ft (0.4m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (04 Oct, local time) - 1.5ft (0.4m), 9s period with ESE swell.
  • Evening surf: Evening surf (04 Oct, local time) - 1.5ft (0.4m), 9s period with ESE swell.

The current surf forecast for Plum Island at 12PM is: 0.4m 9s primary swell from a East-southeast direction and 0.6m 4s secondary swell from a East-northeast direction (forecast issued at 07:00am October 04). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (04 Oct)1.5ft (0.4m)9s
Afternoon (04 Oct)1.5ft (0.4m)9s
Evening (04 Oct)1.5ft (0.4m)9s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Mon morning, min 5°C on Tue morning). Winds increasing (calm on Sun night, fresh winds from the WNW by Tue morning).

Sunday
4
Monday
5
Tuesday
6
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
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
1
1
0
0
1
0
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ESE
10
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.7
ESE
5
0.7
ESE
6
0.9
ESE
7
1.1
ESE
8
1.1
ESE
8
1.2
ESE
8
1
ESE
8
1
ESE
8
0.9
ESE
8
0.8
ESE
8
0.7
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.4
ESE
8
0.4
ESE
8
0.3
E
8
Wave Graph
Metric surfscale
Energy kJ
31
29
28
27
26
26
28
34
94
131
142
168
130
130
104
85
63
46
32
31
20
20
10
Wind (km/h)
10
NNE
15
ENE
15
E
15
ESE
10
ESE
10
ESE
5
SSW
5
WNW
10
WSW
15
SW
25
W
30
WNW
25
WNW
25
WNW
20
WNW
20
WNW
25
WNW
25
WNW
30
WNW
25
WNW
20
WNW
10
WNW
10
WNW
Wind State
cross-on
cross-on
on
cross-on
on
on
glassy
glassy
off
cross-off
off
off
off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
off
cross-off
High Tide
6:16AM2.22m
6:38PM2.58m
7:28AM2.22m
7:50PM2.56m
8:40AM2.30m
9:01PM2.57m
Low Tide
1:01PM0.42m
1:54AM0.11m
2:13PM0.37m
2:58AM0.07m
3:20PM0.26m
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
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6:43
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—
—
—
—
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6:45
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—
—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:20
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—
—
—
—
—
6:17
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—
—
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—
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6:15
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 mm
—
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—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
13
13
14
14
14
14
13
12
11
11
18
18
17
13
10
7
6
5
9
13
14
12
9
Feels °C
11
10
11
10
12
13
13
11
9
8
13
11
10
7
4
1
-1
-3
1
5
7
8
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
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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