Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Issued: 7 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
17.9° C

Slightly warmer than usual

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 (04 Jul):

  • Afternoon surf: Afternoon surf (04 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (04 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.

The current surf forecast for Plum Island at 11PM is: 0.3m 9s primary swell from a Southeast direction (forecast issued at 07:00pm July 04). 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 (04 Jul)--
Afternoon (04 Jul)1.5ft (0.4m)9s
Evening (04 Jul)1.5ft (0.4m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 27mm), heaviest during Mon night. Warm (max 26°C on Sat night, min 15°C on Tue morning). Winds increasing (light winds from the SSE on Sun night, fresh winds from the ENE by Tue morning).

Sat
4
Sunday
5
Monday
6
Tue
7
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)
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
10
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.9
SE
4
0.7
SE
5
1.6
ESE
6
1.9
ESE
6
1.9
E
6
Wave Graph
Metric surfscale
Energy kJ
21
21
13
21
23
23
18
18
18
18
23
23
23
23
24
24
24
24
24
31
25
143
284
273
Wind (km/h)
20
NW
15
WNW
10
NW
5
NNW
10
N
10
NNE
10
E
15
ESE
20
SE
15
SSE
15
S
5
SSE
5
S
10
SSE
20
SSE
20
SE
15
SE
15
SE
15
SE
25
ESE
30
E
30
ENE
30
ENE
30
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
High Tide
3:30PM2.36m
3:41AM2.53m
4:12PM2.42m
4:26AM2.48m
4:57PM2.48m
5:15AM2.42m
Low Tide
10:06PM0.40m
10:32AM0.17m
10:49PM0.37m
11:10AM0.19m
11:37PM0.31m
11:52AM0.21m
clear
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:23
8:23
8:22
 mm
2
8
8
4
2
Temp °C
31
26
25
23
21
21
22
23
23
21
21
21
20
19
18
18
18
18
17
16
16
15
15
15
Feels °C
30
26
26
23
20
20
21
21
20
19
20
22
21
19
15
16
16
17
15
13
12
11
10
10
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
10
0.5
SE
4
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.5
SE
4
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.1
E
10
0.7
SE
5
0.2
ESE
10
0.1
SE
10
1.1
SE
7
Energy kJ
21
21
13
21
23
23
18
18
18
18
23
7
23
23
24
9
24
24
24
2
25
10
4
115
Swell 2
Height (m)
Direction
Period (s)
0.4
NE
4
0.1
SE
6
0.2
ENE
4
0.4
SE
9
0.4
SE
10
0.1
E
10
0.2
ESE
10
Energy kJ
3
1
1
23
24
2
10
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
SE
10
0.1
SE
6
0.1
SE
10
Energy kJ
2
2
2
2
4
1
4
Wind waves
Height (m)
Direction
Period (s)
0.4
NW
3
0.4
NW
3
0.3
N
3
0.3
NNE
4
0.3
NE
4
0.2
ESE
3
0.3
SE
2
0.5
SE
3
0.6
SSE
4
0.5
SE
4
0.4
SE
4
0.5
SE
4
0.5
SE
4
0.5
SE
4
0.6
SE
4
0.9
SE
4
0.8
E
4
1.6
ESE
6
1.9
ESE
6
1.9
E
6
Energy kJ
3
2
1
2
2
1
1
5
8
7
5
7
9
10
16
31
17
143
284
273
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
626
2554
536
427
627
1727
627
3519
1891
3599
587
427
926
1282
1282
1767
920
865
589
523
319
169
599
177
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
1
1
2
1
3
1
1
1
1
1
3
3
3
2
2
1
3
3
3
2
1
Header Global
Rating
(10 max)
5
5
9
9
9
8
7
6
5
5
6
5
5
5
9
8
8
8
7
8
5
5
5
7
  • 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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