Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Monday 25 May 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Plum Island sea temperature is
11.4° C
(Which is slightly warmer than usual)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 10AM is: 1.6m 8s primary swell from a Southeast direction and 0.1m 16s secondary swell from a East direction (forecast issued at 01:00am May 25). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (25 May)5ft (1.6m)8s
Afternoon (25 May)4.5ft (1.4m)8s
Evening (25 May)4ft (1.2m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Mon morning. Warm (max 28°C on Wed afternoon, min 11°C on Mon morning). Wind will be generally light.

Monday
25
Tuesday
26
Wednesday
27
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)
0
1
1
2
2
2
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.6
SE
7
1.6
SE
8
1.6
SE
8
1.5
SE
8
1.4
SE
8
1.3
SE
8
1.2
SE
8
1.2
SE
8
1.2
SE
8
1.2
SE
8
1.2
ESE
8
1.1
SE
8
0.9
ESE
8
1.1
SE
8
0.8
SE
8
0.6
SE
8
0.6
SE
8
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.5
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
7
Wave Graph
Metric surfscale
Energy kJ
233
292
291
275
232
211
192
192
187
187
171
147
106
155
71
46
45
34
33
32
23
17
16
12
Wind (km/h)
15
E
5
ENE
5
N
15
NW
10
W
10
WSW
10
W
10
NW
10
NW
10
NW
5
WSW
10
S
15
S
20
S
20
SW
15
SW
15
WSW
15
WSW
15
W
15
WNW
10
WNW
5
ESE
10
SW
10
NW
on
cross-on
cross
cross-off
off
cross-off
off
cross-off
cross-off
cross-off
off
cross
cross
cross
cross-off
cross-off
cross-off
off
off
off
off
glassy
cross-off
cross-off
High Tide
7:57AM2.33m
8:36PM2.39m
9:03AM2.26m
9:31PM2.41m
10:02AM2.21m
10:18PM2.44m
Low Tide
2:16AM0.24m
2:42PM0.13m
3:15AM0.16m
3:36PM0.16m
4:10AM0.08m
4:26PM0.18m
light rain
cloud
light rain
mod rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:08
8:09
1
1
8
1
2
2
Temp °C
10
10
11
11
13
19
21
18
16
15
17
21
24
23
22
19
18
18
20
24
28
22
19
18
7
9
10
9
12
18
20
17
15
14
16
19
21
19
19
17
16
16
18
23
27
23
19
18
Swell 1
Height (m)
Direction
Period (s)
0.1
E
18
1.6
SE
8
1.6
SE
8
1.5
SE
8
1.4
SE
8
1.3
SE
8
1.2
SE
8
1.2
SE
8
1.2
SE
8
1.2
SE
8
1.2
ESE
8
1.1
SE
8
0.9
ESE
8
0.1
E
15
0.8
SE
8
0.6
SE
8
0.6
SE
8
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.5
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
7
Energy kJ
6
292
291
275
232
211
192
192
187
187
171
147
106
4
71
46
45
34
33
32
23
17
16
12
Swell 2
Height (m)
Direction
Period (s)
0.1
E
17
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
15
0.4
S
4
0.1
E
15
0.1
E
14
0.1
E
14
0.1
E
14
0.1
E
14
Energy kJ
6
5
5
5
5
5
5
5
5
5
4
4
4
4
4
4
5
4
4
4
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
14
Energy kJ
4
4
4
4
Wind waves
Height (m)
Direction
Period (s)
1.6
SE
7
0.3
S
2
1.1
SE
8
0.7
SSE
4
0.8
S
4
0.8
SSW
4
0.4
WSW
3
0.4
WSW
3
0.3
WSW
3
Energy kJ
233
1
155
18
26
23
4
4
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
145
25
13
0
0
0
0
0
0
0
0
4
4
75
166
4
4
9
9
54
182
444
183
146
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
2
2
4
7
2
9
9
9
9
1
1
1
4
4
4
1
1
1
1
1
Header Global
Rating
(10 max)
4
5
5
4
4
4
4
5
5
9
9
9
9
6
7
9
6
8
9
9
9
6
6
9
  • 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

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