Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
17.7°C
0.3° 

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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.5m), 8s period with SE swell.

The current surf forecast for Plum Island at 9PM is: 0.5m 8s primary swell from a Southeast direction (forecast issued at 07:00am September 14). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (14 Sep)1.5ft (0.4m)9s
Afternoon (14 Sep)1.5ft (0.4m)9s
Evening (14 Sep)1.5ft (0.5m)8s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
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
0
0
0
0
0
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
SE
9
0.4
SE
9
0.5
SE
9
0.4
SE
9
0.4
ESE
8
0.6
ESE
8
0.5
SE
8
1.3
NNE
5
1
NE
5
0.8
NE
4
0.6
NE
5
0.6
ENE
5
0.5
ENE
6
0.4
SE
7
0.4
ENE
5
0.4
ENE
5
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.6
SSE
4
0.7
S
4
Wave Graph
Metric surfscale
Energy kJ
21
29
39
19
26
43
30
97
47
24
19
15
18
15
9
8
8
9
8
8
9
10
17
Wind (km/h)
15
W
20
NW
30
NW
25
NNW
20
NNW
15
NW
20
NNE
15
N
10
NNE
10
NNE
10
ENE
10
ESE
15
SE
15
SSE
15
SSW
15
SW
15
SW
15
SSW
15
SW
15
SSW
10
WSW
10
WSW
5
W
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
High Tide
2:19AM2.50m
2:36PM2.56m
3:02AM2.36m
3:16PM2.48m
3:46AM2.22m
4:00PM2.38m
Low Tide
8:59AM0.00m
9:28PM-0.08m
9:44AM0.14m
10:16PM0.02m
10:31AM0.29m
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:52
6:52
 mm
Temp °C
19
17
19
20
21
18
15
13
12
12
13
14
14
14
14
13
14
13
19
24
26
25
22
Feels °C
19
14
13
13
16
14
11
9
9
9
11
11
11
11
11
11
12
10
16
22
24
24
22
  • 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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