Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 pm Saturday 30 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
13.2° C
(Which is 1.8°C warmer than normal for this time of year)

How big are the waves at Plum Island today (30 May):

  • Morning surf: Morning surf (30 May, local time) - 11ft (3.5m), 7s period with ENE swell.
  • Afternoon surf: Afternoon surf (30 May, local time) - 11ft (3.5m), 8s period with ENE swell.
  • Evening surf: Evening surf (30 May, local time) - 7.5ft (2.3m), 8s period with ENE swell.

The current surf forecast for Plum Island at 5PM is: 3.0m 8s primary swell from a East-northeast direction (forecast issued at 01:00pm May 30). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (30 May)11ft (3.5m)7s
Afternoon (30 May)11ft (3.5m)8s
Evening (30 May)7.5ft (2.3m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 5mm), mostly falling on Sat afternoon. Very mild (max 18°C on Tue morning, min 7°C on Sat night). Winds decreasing (strong winds from the NE on Sat afternoon, calm by Sun morning).

Sat
30
Sunday
31
Monday
1
Tue
2
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
2 AM
5 AM
8 AM
Rating
(10 max)
0
0
0
0
4
2
2
2
2
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3.5
ENE
8
3.5
ENE
8
3
ENE
8
2.3
ENE
8
2.3
ENE
8
1.8
E
8
1.5
E
8
1.3
E
8
1.4
E
8
1.3
E
8
1.2
E
8
1.1
E
8
1.1
E
8
1
E
8
0.9
E
8
0.9
E
8
1.4
E
5
0.8
E
9
0.9
E
8
1.1
E
8
1
E
8
0.9
E
8
0.8
E
8
0.7
E
9
Wave Graph
Metric surfscale
Energy kJ
1572
1575
978
637
740
428
277
207
271
235
196
165
165
136
108
105
93
93
115
167
135
112
91
71
Wind (km/h)
50
NE
40
NE
35
NE
25
NNE
15
NNW
10
NW
10
WNW
10
NW
0
NNW
5
SE
10
NW
15
W
10
W
10
NW
10
NNE
20
NE
20
ENE
15
ENE
10
ESE
10
S
10
WSW
10
W
10
W
10
W
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
cross-off
off
off
cross-off
cross
cross-on
cross-on
on
on
cross
off
off
off
off
High Tide
12:17PM2.15m
00:15AM2.48m
12:52PM2.15m
00:51AM2.49m
1:27PM2.16m
1:27AM2.51m
Low Tide
6:40PM0.28m
7:13AM-0.04m
7:21PM0.33m
7:54AM-0.00m
8:00PM0.38m
light rain
light rain
cloud
part cloud
clear
clear
part cloud
clear
cloud
part cloud
light rain
cloud
part cloud
cloud
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:13
8:14
8:15
4
4
1
Temp °C
6
8
9
10
9
8
7
11
15
16
14
13
12
10
10
10
10
10
11
11
12
11
11
12
-5
-1
1
3
5
4
3
8
13
14
12
10
10
8
7
6
6
6
8
8
9
7
8
9
Swell 1
Height (m)
Direction
Period (s)
2
E
8
1.8
E
8
1.5
E
8
1.3
E
8
1.4
E
8
1.3
E
8
1.2
E
8
1.1
E
8
1.1
E
8
1
E
8
0.9
E
8
0.9
E
8
0.8
E
9
0.9
E
5
1.1
E
8
1
E
8
0.9
E
8
0.8
E
8
0.7
E
9
Energy kJ
535
428
277
207
271
235
196
165
165
136
108
105
93
40
167
135
112
91
71
Swell 2
Height (m)
Direction
Period (s)
0.1
S
7
0.5
E
9
0.4
ENE
9
0.1
E
14
0.9
E
8
Energy kJ
1
41
27
4
115
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
3.5
ENE
8
3.5
ENE
8
3
ENE
8
2.3
ENE
8
2.3
ENE
8
0.3
NW
3
0.4
NW
3
0.3
W
2
0.3
WNW
2
0.4
NNE
3
1.4
E
5
1.1
E
5
Energy kJ
1572
1575
978
637
740
1
2
1
1
3
93
65
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
4
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
177
633
633
863
0
0
0
0
0
4
0
0
0
0
13
25
177
25
25
4
0
0
0
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
4
2
2
2
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
1
1
1
4
3
3
3
3
2
2
2
3
4
3
3
3
1
1
1
1
3
3
3
Header Global
Rating
(10 max)
6
8
7
7
7
7
7
6
6
5
5
5
5
5
5
4
4
4
5
5
5
5
7
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

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