Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 pm Friday 22 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
11.1° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 4PM is: 0.3m 10s primary swell from a Southeast direction and 0.4m 4s secondary swell from a Northeast direction (forecast issued at 01:00pm May 22). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (22 May)1ft (0.3m)9s
Afternoon (22 May)1ft (0.3m)10s
Evening (22 May)1ft (0.3m)10s

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 22mm), heaviest during Sun afternoon. Very mild (max 14°C on Fri afternoon, min 7°C on Sun morning). Wind will be generally light.

Fri
22
Saturday
23
Sunday
24
Mon
25
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.3
SE
9
0.3
SE
9
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
9
0.2
ESE
9
0.2
SSE
7
0.1
E
18
0.9
SE
4
1.2
SE
5
1.4
SE
6
1.6
SE
6
1.8
SE
7
1.6
SE
8
1.5
SE
7
Wave Graph
Metric surfscale
Energy kJ
13
14
15
15
15
15
15
15
15
14
14
14
14
14
8
5
7
28
77
141
220
301
292
237
Wind (km/h)
10
ENE
15
ESE
15
SSE
15
SSW
10
SW
5
W
5
NNW
10
NNE
10
E
10
ESE
10
SE
10
SE
10
SE
10
SE
10
SSE
10
SE
15
ESE
25
ESE
30
E
30
E
25
ENE
20
NE
20
N
15
NNW
on
on
cross
cross-off
cross-off
glassy
glassy
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
on
cross-on
cross
cross-off
High Tide
5:24PM2.38m
5:40AM2.57m
6:29PM2.36m
6:48AM2.43m
7:35PM2.36m
7:57AM2.33m
Low Tide
11:43AM-0.06m
00:05AM0.28m
12:44PM0.03m
1:12AM0.28m
1:44PM0.09m
2:16AM0.24m
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
light rain
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:05
8:06
8:07
8:07
3
7
7
3
2
Temp °C
13
14
13
14
14
13
13
12
14
14
13
13
13
12
11
10
7
7
7
8
9
10
9
7
9
9
7
9
10
10
10
9
10
10
10
10
9
8
8
7
3
1
1
2
4
6
5
3
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
9
0.5
NE
4
0.4
NE
4
0.3
SE
10
0.3
SE
10
0.3
S
3
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
9
0.2
ESE
9
0.2
SSE
7
0.1
SE
9
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
18
0.1
E
18
1.6
SE
8
1.5
SE
7
Energy kJ
13
8
4
15
15
1
15
15
15
14
14
14
14
14
8
5
3
3
3
3
6
6
292
237
Swell 2
Height (m)
Direction
Period (s)
0.1
E
13
0.3
SE
9
0.3
SE
10
0.2
ENE
4
0.2
SSE
3
0.3
SE
10
0.2
S
3
0.1
E
13
0.1
E
13
0.1
E
12
0.1
E
12
0.1
SE
9
0.1
E
12
0.1
E
18
0.1
E
18
0.1
E
18
0.1
E
18
0.1
E
17
0.1
E
16
Energy kJ
3
14
15
1
1
15
1
4
3
3
3
3
3
6
6
6
6
6
5
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
E
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
E
13
0.1
E
13
0.1
E
14
0.1
E
12
0.1
S
7
0.1
E
12
0.1
E
18
Energy kJ
7
3
7
7
7
4
4
4
3
1
3
6
Wind waves
Height (m)
Direction
Period (s)
0.6
NE
4
0.3
S
2
0.4
SW
3
0.2
ESE
2
0.3
ESE
3
0.4
SE
3
0.4
SE
3
0.4
SE
3
0.6
SE
3
0.9
SE
4
1.2
SE
5
1.4
SE
6
1.6
SE
6
1.8
SE
7
Energy kJ
11
1
2
1
1
2
3
4
7
28
77
141
220
301
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
1
1
1
1
1
1
1
2
2
3
2
4
4
3
2
2
1
1
2
Distance (km)
865
941
941
635
2557
1279
170
1677
1279
1276
182
1276
801
801
595
574
411
319
319
151
81
25
27
9
Best forecast wave conditions in Massachusetts
Rating
(10 max)
2
2
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
1
2
1
2
2
2
2
1
2
1
2
2
3
3
4
4
3
3
2
2
3
3
Header Global
Rating
(10 max)
6
7
6
5
5
6
7
8
7
6
5
5
5
5
5
5
5
5
5
5
4
5
5
5
  • 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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