Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 1 am 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
16.1° C
2.8° 

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 (23 Jul):

  • Morning surf: Morning surf (23 Jul, local time) - 2.5ft (0.8m), 8s period with SE swell.
  • Afternoon surf: Afternoon surf (23 Jul, local time) - 2.5ft (0.8m), 8s period with SE swell.
  • Evening surf: Evening surf (23 Jul, local time) - 2.5ft (0.7m), 8s period with SE swell.

The current surf forecast for Plum Island at 5AM is: 0.9m 9s primary swell from a Southeast direction (forecast issued at 01:00am July 23). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 Jul)2.5ft (0.8m)8s
Afternoon (23 Jul)2.5ft (0.8m)8s
Evening (23 Jul)2.5ft (0.7m)8s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Fri afternoon, min 16°C on Sat night). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
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
5 PM
8 PM
11 PM
Rating
(10 max)
1
1
0
1
1
0
0
1
1
1
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)
0.9
SE
9
0.9
SE
9
0.8
SE
8
0.8
SE
8
0.8
SE
8
0.7
SE
8
0.7
SE
8
0.8
SE
8
0.8
SE
7
0.8
SE
7
0.7
SE
7
0.6
SE
7
0.6
SE
7
0.7
SE
7
0.5
SE
7
0.4
SE
8
0.5
SE
8
0.7
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
Wave Graph
Metric surfscale
Energy kJ
118
110
77
71
71
60
58
67
65
62
48
38
37
45
23
15
28
54
43
41
39
41
41
41
Wind (km/h)
15
WNW
15
WNW
15
NW
10
NNW
5
SE
15
SSE
15
S
15
SSW
10
W
5
WNW
0
E
10
SE
15
SE
20
SE
20
SSE
10
S
5
SW
5
W
0
NNW
10
ESE
15
ESE
15
ESE
10
ESE
5
SE
Wind State
off
off
cross-off
cross-off
glassy
cross-on
cross
cross-off
off
off
glassy
cross-on
cross-on
cross-on
cross
cross
cross-off
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
7:48AM1.98m
8:06PM2.27m
8:50AM1.93m
9:01PM2.28m
9:48AM1.94m
9:52PM2.31m
Low Tide
2:14AM0.19m
2:28PM0.38m
3:10AM0.20m
3:22PM0.42m
4:04AM0.18m
4:14PM0.44m
cloud
clear
clear
clear
clear
clear
clear
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>
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:12
8:10
 mm
Temp °C
17
16
17
21
23
23
21
20
19
19
18
22
24
23
22
21
20
19
19
21
22
21
19
18
Feels °C
14
13
13
18
21
19
18
18
18
18
18
21
21
19
18
19
19
18
18
18
19
18
17
17
  • 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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