Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 pm 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 (12 Jul):

  • Morning surf: Morning surf (12 Jul, local time) - 1ft (0.3m), 10s period with SE swell.
  • Afternoon surf: Afternoon surf (12 Jul, local time) - 1ft (0.3m), 10s period with SE swell.
  • Evening surf: Evening surf (12 Jul, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Plum Island at 3AM is: 0.3m 10s primary swell from a Southeast direction and 0.3m 8s secondary swell from a East direction (forecast issued at 07:00pm July 11). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (12 Jul)1ft (0.3m)10s
Afternoon (12 Jul)1ft (0.3m)10s
Evening (12 Jul)1ft (0.3m)10s

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


Short Range Forecast

Mostly dry. Warm (max 35°C on Tue afternoon, min 19°C on Sat night). Wind will be generally light.

Sat
11
Sunday
12
Monday
13
Tue
14
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
5 AM
8 AM
11 AM
2 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
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)
0.3
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
0.4
SE
10
1.1
SSE
5
1.2
S
5
0.3
ESE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
15
15
15
15
16
16
15
15
15
15
15
15
15
14
14
23
54
70
17
14
14
13
13
13
Wind (km/h)
15
SE
10
S
5
NNW
10
NE
15
N
10
N
10
ENE
15
ESE
20
SSE
15
S
15
SSW
10
SW
15
SW
15
SW
15
S
20
SSE
25
S
20
S
20
SW
20
SW
20
SW
20
WSW
20
SW
20
WSW
Wind State
cross-on
cross
glassy
cross-on
cross
cross
cross-on
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
9:27PM2.84m
10:09AM2.33m
10:27PM2.92m
11:10AM2.40m
11:26PM2.99m
12:08PM2.47m
Low Tide
3:38PM0.22m
4:35AM-0.13m
4:40PM0.17m
5:33AM-0.23m
5:40PM0.11m
6:29AM-0.30m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
24
22
21
21
19
19
21
22
22
21
21
20
19
20
25
27
27
26
23
21
21
23
30
34
Feels °C
22
21
21
20
17
17
19
19
18
18
18
19
17
18
23
24
23
24
21
19
19
22
28
31
  • 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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