Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Saturday 23 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 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 1PM is: 0.3m 10s primary swell from a Southeast direction and 0.1m 13s secondary swell from a East direction, 0.2m 2s secondary swell from a East-northeast direction (forecast issued at 07:00am May 23). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 May)1ft (0.3m)10s
Afternoon (23 May)1ft (0.3m)10s
Evening (23 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

Moderate rain (total 19mm), heaviest on Sun night. Very mild (max 17°C on Mon afternoon, min 7°C on Sun afternoon). Wind will be generally light.

Saturday
23
Sunday
24
Monday
25
Tue
26
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
2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
0
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)
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
0.3
SE
9
0.1
E
18
0.6
SE
4
0.7
SE
4
0.8
SE
5
1.1
SE
5
1.3
SE
6
1.4
SE
6
1.6
SE
6
1.5
SE
7
1.4
SE
8
1.4
SE
8
1.3
ESE
8
1
SE
8
1.3
ESE
8
1.3
ESE
8
Wave Graph
Metric surfscale
Energy kJ
15
15
15
14
14
14
14
14
14
6
12
17
33
62
111
162
202
200
229
238
219
129
192
178
Wind (km/h)
5
NNE
5
ENE
15
ENE
10
E
10
E
10
ESE
10
SE
10
SE
10
ESE
15
SE
15
SSE
15
ESE
20
E
25
ENE
25
E
25
E
15
ENE
15
N
15
NNW
10
NW
5
SSW
10
S
5
S
5
NNW
cross-on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross
cross-off
cross-off
glassy
cross
cross
glassy
High Tide
5:40AM2.57m
6:29PM2.36m
6:48AM2.43m
7:35PM2.36m
7:57AM2.33m
8:36PM2.39m
Low Tide
12:44PM0.03m
1:12AM0.28m
1:44PM0.09m
2:16AM0.24m
2:42PM0.13m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
light rain
light rain
cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:11
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:07
8:07
8:08
3
4
6
4
2
Temp °C
15
13
13
13
13
13
13
12
11
11
10
7
7
8
10
10
10
9
9
11
17
17
15
13
12
10
10
10
10
10
10
9
8
7
6
3
3
3
6
6
7
6
6
9
17
16
15
13
Swell 1
Height (m)
Direction
Period (s)
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
0.3
SE
9
0.1
SE
9
0.2
SSE
7
0.2
SSE
7
0.2
SSE
7
0.1
E
12
0.1
E
18
0.1
E
18
0.1
E
17
1.5
SE
7
1.4
SE
8
1.4
SE
8
1.3
ESE
8
1
SE
8
1.3
ESE
8
1.3
ESE
8
Energy kJ
15
15
15
14
14
14
14
14
14
3
5
5
5
3
6
6
6
200
229
238
219
129
192
178
Swell 2
Height (m)
Direction
Period (s)
0.1
E
13
0.1
E
13
0.1
E
13
0.2
ENE
3
0.2
ENE
3
0.2
ENE
3
0.2
ENE
3
0.1
E
12
0.1
SE
9
0.1
SE
9
0.1
SE
9
0.1
E
18
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.8
E
7
0.1
E
16
0.1
E
16
Energy kJ
4
4
3
1
1
1
1
3
3
3
3
6
5
5
5
5
63
5
5
Swell 3
Height (m)
Direction
Period (s)
0.1
E
13
0.1
E
13
0.1
E
12
0.1
E
12
0.1
E
18
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
18
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
Energy kJ
4
3
3
3
6
3
3
3
6
5
5
5
5
Wind waves
Height (m)
Direction
Period (s)
0.3
NE
2
0.2
SSE
2
0.2
SSE
2
0.6
SE
3
0.6
SE
4
0.7
SE
4
0.8
SE
5
1.1
SE
5
1.3
SE
6
1.4
SE
6
1.6
SE
6
Energy kJ
1
1
1
6
12
17
33
62
111
162
202
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
1
1
2
2
2
2
4
3
3
2
2
1
2
2
2
2
1
2
1
Distance (km)
260
854
854
833
182
170
169
772
772
772
553
443
443
319
151
145
27
13
0
0
0
43
4
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
2
2
2
2
2
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
1
2
2
3
3
3
3
4
3
3
3
2
3
2
2
2
2
4
4
5
Header Global
Rating
(10 max)
7
8
7
6
5
5
5
5
5
5
5
5
5
5
4
5
5
5
4
5
4
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

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