Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
18.9°C
0.6° 

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 (02 Sep):

  • Morning surf: Morning surf (02 Sep, local time) - 1.5ft (0.5m), 11s period with SE swell.
  • Afternoon surf: Afternoon surf (02 Sep, local time) - 1.5ft (0.5m), 10s period with SE swell.
  • Evening surf: Evening surf (02 Sep, local time) - 1.5ft (0.5m), 10s period with SE swell.

The current surf forecast for Plum Island at 11AM is: 0.6m 11s primary swell from a Southeast direction and 0.3m 9s secondary swell from a Southeast direction, 0.2m 3s secondary swell from a East-southeast direction (forecast issued at 07:00am September 02). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (02 Sep)1.5ft (0.5m)11s
Afternoon (02 Sep)1.5ft (0.5m)10s
Evening (02 Sep)1.5ft (0.5m)10s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 27°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
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
0
0
0
1
1
0
0
0
0
0
1
0
0
1
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
SE
11
0.5
SE
11
0.6
SE
11
0.5
SE
11
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
9
1.3
SSE
5
1.4
SSE
5
1.3
SSE
6
1.1
SE
6
1.1
SE
6
0.9
SE
6
0.8
SE
6
0.7
SE
6
0.7
ESE
6
0.8
ESE
7
0.8
ESE
7
0.8
ESE
7
0.8
ESE
7
0.7
ESE
7
Wave Graph
Metric surfscale
Energy kJ
43
58
73
56
48
47
46
45
42
72
103
93
75
82
62
45
37
37
51
53
54
54
43
Wind (km/h)
10
ENE
10
E
10
E
15
ESE
15
SE
15
SE
10
S
15
S
15
S
15
S
15
SSW
10
WSW
10
W
10
ENE
5
ENE
5
N
10
W
10
WNW
5
WNW
5
S
10
SSW
0
NW
15
NW
Wind State
cross-on
on
on
on
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
off
on
on
glassy
off
off
cross-off
glassy
cross-off
glassy
cross-off
High Tide
3:37AM2.47m
3:57PM2.71m
4:28AM2.37m
4:49PM2.69m
5:24AM2.28m
5:46PM2.65m
Low Tide
10:03AM0.13m
10:46PM0.01m
10:53AM0.23m
11:46PM0.06m
11:54AM0.32m
part cloud
cloud
part cloud
cloud
part cloud
clear
cloud
cloud
light rain
light rain
thunderstorm
thunderstorm
thunderstorm
part cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:13
 mm
5
4
1
1
1
Temp °C
18
18
19
19
19
18
18
17
17
19
21
24
25
21
19
18
18
19
25
26
27
24
21
Feels °C
18
18
18
17
17
16
17
16
16
19
22
26
27
23
21
20
19
19
25
26
27
25
19
  • 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.


Nearest locationNearest