Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 7 pm 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
15.9°C
0.1° 

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 (26 Sep):

  • Morning surf: Morning surf (26 Sep, local time) - 13ft (4.0m), 10s period with E swell.
  • Afternoon surf: Afternoon surf (26 Sep, local time) - 13ft (4.0m), 10s period with E swell.
  • Evening surf: Evening surf (26 Sep, local time) - 13ft (4.0m), 10s period with E swell.

The current surf forecast for Plum Island at 1AM is: 3.0m 11s primary swell from a East-southeast direction (forecast issued at 07:00pm September 25). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (26 Sep)13ft (4.0m)10s
Afternoon (26 Sep)13ft (4.0m)10s
Evening (26 Sep)13ft (4.0m)10s

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


Short Range Forecast

Heavy rain (total 47mm), heaviest during Sat night. Very mild (max 17°C on Fri night, min 13°C on Fri night). Winds increasing (moderate winds from the ENE on Fri night, strong winds from the NE by Sat night).

Fri
25
Saturday
26
Sunday
27
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
ESE
11
3
E
11
3
ESE
11
3
E
11
3.5
E
11
4
E
10
4
E
10
4
E
10
4
E
10
4
E
10
4.5
E
10
4.5
ENE
10
4
ENE
9
4
ENE
9
4
ENE
9
3.5
ENE
9
3.5
ENE
9
3.5
ENE
8
3
ENE
8
Wave Graph
Metric surfscale
Energy kJ
2469
2409
2287
2323
2651
3183
3103
2906
2823
3192
3372
3334
2912
2541
2275
2117
1830
1563
1299
Wind (km/h)
30
NE
25
ENE
25
ENE
35
NE
35
NE
35
NE
40
NE
45
NE
45
NE
45
NE
50
NE
50
NE
45
NE
45
NE
45
NE
45
NE
40
NE
40
NE
40
NE
Wind State
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:35PM2.56m
11:55AM2.59m
00:16AM2.60m
12:34PM2.71m
Low Tide
6:02PM0.11m
6:22AM0.05m
6:41PM-0.02m
6:56AM0.01m
7:19PM-0.12m
cloud
cloud
light rain
light rain
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
6:33
—
—
—
—
—
—
—
6:35
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
—
—
—
—
—
—
—
6:34
—
—
—
—
—
—
—
6:31
—
—
 mm
—
—
1
1
—
—
—
2
3
4
3
5
7
3
2
1
1
1
1
Temp °C
17
17
15
13
13
13
14
13
13
13
13
13
13
13
13
13
13
13
13
Feels °C
11
12
11
6
7
6
6
4
5
5
4
4
5
5
5
5
6
6
6
  • 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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