Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Thursday 28 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
11.9° C
(Which is slightly warmer than usual)

How big are the waves at Plum Island today (28 May):

  • Morning surf: Morning surf (28 May, local time) - 1.5ft (0.5m), 4s period with NE swell.
  • Afternoon surf: Afternoon surf (28 May, local time) - 1.5ft (0.5m), 4s period with NE swell.
  • Evening surf: Evening surf (28 May, local time) - 1.5ft (0.4m), 4s period with ENE swell.

The current surf forecast for Plum Island at 7AM is: 0.4m 6s primary swell from a Southeast direction and 0.6m 4s secondary swell from a North-northeast direction (forecast issued at 01:00am May 28). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (28 May)1.5ft (0.5m)4s
Afternoon (28 May)1.5ft (0.5m)4s
Evening (28 May)1.5ft (0.4m)4s

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 25mm), heaviest during Sat morning. Very mild (max 16°C on Thu night, min 5°C on Sat morning). Winds increasing (calm on Fri morning, strong winds from the NNE by Sat morning).

Thursday
28
Friday
29
Saturday
30
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.6
NE
4
0.5
NE
4
0.4
ENE
4
0.2
E
9
0.5
NE
4
0.6
NE
4
0.6
NE
4
0.5
NE
4
0.5
NE
5
0.4
NE
5
0.4
ENE
8
0.4
ENE
8
0.5
E
8
0.4
ENE
9
2.2
ENE
7
4
NE
8
3.5
NE
8
3.5
ENE
8
3
ENE
9
2.5
ENE
9
2.2
E
9
Wave Graph
Metric surfscale
Energy kJ
16
10
10
9
7
6
8
9
10
11
9
10
6
22
21
34
29
494
2037
1790
1563
1266
1047
794
Wind (km/h)
10
NNE
10
N
15
NNE
10
ENE
10
E
10
NE
10
NNE
10
NE
10
N
5
NW
5
WSW
10
E
15
SE
20
S
20
SSW
25
NW
20
WNW
25
NE
45
NNE
35
NNE
35
NNE
25
NNE
5
NNW
10
NW
cross-on
cross
cross-on
cross-on
on
cross-on
cross
cross-on
cross
cross-off
glassy
on
cross-on
cross
cross-off
cross-off
off
cross-on
cross
cross
cross
cross
cross-off
cross-off
High Tide
10:53AM2.19m
11:00PM2.45m
11:38AM2.17m
11:38PM2.47m
12:17PM2.15m
Low Tide
5:00AM0.01m
5:13PM0.21m
5:47AM-0.04m
5:58PM0.24m
6:31AM-0.06m
6:40PM0.28m
part cloud
part cloud
clear
rain showers
rain showers
rain showers
rain showers
light rain
part cloud
cloud
clear
light rain
part cloud
cloud
light rain
rain showers
clear
cloud
mod rain
light rain
cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:10
8:12
8:13
1
1
3
1
1
1
5
5
6
1
Temp °C
17
15
14
14
14
13
16
13
11
10
11
14
14
13
12
10
8
9
5
5
8
11
12
10
15
13
11
12
13
12
14
10
9
8
10
12
11
9
9
5
3
3
-5
-4
0
4
9
6
Swell 1
Height (m)
Direction
Period (s)
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.3
SE
6
0.5
NE
4
0.4
ENE
4
0.4
ENE
4
0.4
NE
4
0.2
SSE
8
0.6
NE
4
0.5
NE
4
0.5
NE
5
0.4
NE
5
0.4
ENE
8
0.4
ENE
8
0.5
E
8
0.4
ENE
9
0.3
SSE
4
0.1
S
7
2.2
E
9
Energy kJ
16
10
10
6
7
6
8
5
6
11
9
10
5
22
21
34
29
4
1
794
Swell 2
Height (m)
Direction
Period (s)
0.1
E
14
0.3
SE
6
0.2
SSE
6
0.2
SSE
8
0.2
SSE
8
0.2
E
9
0.2
SSE
8
0.2
E
8
0.2
E
8
0.2
E
8
0.1
E
10
0.1
SE
8
0.1
SE
8
0.4
SSE
4
0.1
SE
8
Energy kJ
4
6
4
6
6
6
6
6
5
5
2
3
3
5
3
Swell 3
Height (m)
Direction
Period (s)
0.1
E
14
0.1
E
16
0.1
E
10
0.1
E
10
0.2
E
9
0.2
E
9
0.1
E
12
0.2
E
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.1
E
14
0.1
E
10
0.1
E
10
0.3
ENE
5
0.1
SE
8
Energy kJ
4
5
2
2
7
6
3
6
6
6
6
4
2
2
5
3
Wind waves
Height (m)
Direction
Period (s)
0.6
NNE
4
0.6
NNE
4
0.6
NNE
4
0.6
NE
4
0.5
NE
4
0.6
NE
4
0.4
SE
2
0.5
S
3
0.7
S
3
0.5
NW
3
2.2
ENE
7
4
NE
8
3.5
NE
8
3.5
ENE
8
3
ENE
9
2.5
ENE
9
Energy kJ
9
9
8
9
9
10
2
5
11
4
494
2037
1790
1563
1266
1047
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
1
2
2
2
2
1
4
3
Distance (km)
183
170
216
170
152
231
120
170
260
231
231
800
1282
1282
110
499
54
512
863
634
920
1727
0
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
1
2
2
2
2
1
2
1
1
2
2
1
1
1
1
2
4
4
3
1
1
4
4
Header Global
Rating
(10 max)
9
8
9
8
7
7
7
5
5
5
5
5
4
5
5
5
5
5
5
6
8
7
7
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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