Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
19.2° C
1.5° 

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 (09 Jul):

  • Morning surf: Morning surf (09 Jul, local time) - 3ft (0.9m), 8s period with ESE swell.
  • Afternoon surf: Afternoon surf (09 Jul, local time) - 3ft (0.9m), 8s period with ESE swell.
  • Evening surf: Evening surf (09 Jul, local time) - 2.5ft (0.8m), 8s period with ESE swell.

The current surf forecast for Plum Island at 1AM is: 1.1m 8s primary swell from a East-southeast direction (forecast issued at 07:00pm July 08). 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 (09 Jul)3ft (0.9m)8s
Afternoon (09 Jul)3ft (0.9m)8s
Evening (09 Jul)2.5ft (0.8m)8s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Thu night. Warm (max 31°C on Thu afternoon, min 19°C on Sat morning). Wind will be generally light.

Wed
8
Thursday
9
Friday
10
Sat
11
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
1
1
1
1
1
1
0
0
0
1
1
1
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)
1.4
ESE
8
1.2
ESE
8
1.1
ESE
8
1.1
ESE
8
1
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.8
ESE
8
0.8
ESE
8
0.7
ESE
8
0.7
E
8
0.6
E
8
0.6
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.4
ESE
8
0.4
ESE
8
0.4
E
8
0.3
SE
10
0.3
SE
10
0.3
SE
10
Wave Graph
Metric surfscale
Energy kJ
221
183
151
147
120
94
96
104
104
83
83
68
68
50
50
48
33
32
19
19
18
17
16
15
Wind (km/h)
15
SE
15
S
15
SSW
15
WSW
15
WSW
10
W
10
W
10
SW
15
S
20
SW
20
SW
10
WSW
10
NNW
5
NNE
10
ENE
15
ESE
10
SE
5
SE
5
WNW
10
N
10
NNE
15
NNE
15
NE
15
ENE
Wind State
cross-on
cross
cross-off
cross-off
off
off
off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
on
cross-on
cross-on
off
cross
cross
cross
cross-on
cross-on
High Tide
6:36PM2.61m
7:04AM2.31m
7:30PM2.68m
8:04AM2.28m
8:28PM2.76m
9:06AM2.29m
Low Tide
1:30AM0.16m
1:36PM0.25m
2:31AM0.07m
2:36PM0.25m
3:34AM-0.03m
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
thunderstorm
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
8:22
 mm
1
1
1
Temp °C
24
21
21
21
21
23
29
31
28
27
24
22
20
21
22
22
21
20
21
20
20
19
19
19
Feels °C
22
19
20
20
20
23
29
31
28
26
25
24
22
23
23
22
22
22
23
21
20
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.


Nearest locationNearest