Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
19.2° C
1.1° 

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 (11 Jul):

  • Morning surf: Morning surf (11 Jul, local time) - 1.5ft (0.4m), 8s period with E swell.
  • Afternoon surf: Afternoon surf (11 Jul, local time) - 1ft (0.3m), 10s period with SE swell.
  • Evening surf: Evening surf (11 Jul, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Plum Island at 1PM is: 0.3m 10s primary swell from a Southeast direction and 0.3m 8s secondary swell from a East direction, 0.3m 3s secondary swell from a Northeast direction (forecast issued at 07:00am July 11). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (11 Jul)1.5ft (0.4m)8s
Afternoon (11 Jul)1ft (0.3m)10s
Evening (11 Jul)1ft (0.3m)10s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Mon afternoon, min 19°C on Sat night). Wind will be generally light.

Saturday
11
Sunday
12
Monday
13
Tue
14
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
2 AM
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
0
Swell
Height Map
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)
0.3
SE
10
0.4
E
8
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.9
SSE
4
1
SSE
5
1.1
S
5
1.2
S
5
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
17
18
17
15
15
15
15
15
16
16
15
15
15
15
15
15
15
14
14
23
49
66
79
14
Wind (km/h)
10
WNW
10
NW
10
ENE
20
ESE
15
SE
10
S
5
N
5
NNW
10
N
15
NE
10
ENE
15
ESE
15
SE
15
S
10
SSW
10
SW
15
SW
15
SW
10
SSW
20
SSE
20
SW
20
SSW
20
SW
15
SW
Wind State
off
cross-off
on
cross-on
cross-on
cross
glassy
glassy
cross
cross-on
cross-on
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
High Tide
9:06AM2.29m
9:27PM2.84m
10:09AM2.33m
10:27PM2.92m
11:10AM2.40m
11:26PM2.99m
Low Tide
3:34AM-0.03m
3:38PM0.22m
4:35AM-0.13m
4:40PM0.17m
5:33AM-0.23m
5:40PM0.11m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
clear
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:15
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:21
8:21
8:20
 mm
Temp °C
21
21
22
23
22
22
21
21
19
19
21
22
22
21
21
20
19
19
26
29
29
27
24
22
Feels °C
20
20
21
20
19
21
21
21
18
17
19
20
19
19
18
19
17
17
25
26
27
25
22
21
  • 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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