Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Thursday 14 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
9.2° C
(Which is normal for this time of year)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 8AM is: 1.1m 5s primary swell from a Southeast direction and 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 01:00am May 14). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (14 May)3.5ft (1.1m)5s
Afternoon (14 May)4.5ft (1.4m)6s
Evening (14 May)6ft (1.9m)6s

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 23mm), heaviest during Thu night. Warm (max 24°C on Sat afternoon, min 9°C on Thu night). Wind will be generally light.

Thursday
14
Friday
15
Saturday
16
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
1
2
3
2
2
2
2
1
1
1
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.1
SSE
5
1.1
SSE
5
1.1
SE
5
1.1
SE
5
1.4
SE
6
1.5
ESE
6
1.8
ESE
6
2.1
ESE
6
2.1
ESE
7
2
E
7
1.7
ESE
9
2.3
ESE
10
1.9
ESE
10
2
E
10
1.8
ESE
10
1.6
E
10
1.5
E
10
1.5
ESE
9
1.3
ESE
9
1.2
ESE
9
1
ESE
9
0.9
ESE
9
0.9
ESE
9
1.1
S
6
Wave Graph
Metric surfscale
Energy kJ
66
61
57
58
118
154
222
372
395
388
421
999
618
816
653
509
441
367
271
227
177
143
111
78
Wind (km/h)
15
S
15
SSE
20
SSE
25
SE
25
ESE
25
E
25
ESE
25
E
20
E
20
E
15
ENE
20
NE
20
NE
15
NNE
10
N
5
W
10
WSW
10
WSW
15
WSW
10
WSW
15
WSW
15
WSW
15
SW
20
SW
cross
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross
off
off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
10:00AM2.46m
10:21PM2.78m
10:54AM2.51m
11:11PM2.91m
11:47AM2.55m
Low Tide
4:26AM0.03m
4:38PM0.11m
5:16AM-0.16m
5:25PM0.04m
6:06AM-0.30m
6:14PM-0.00m
part cloud
cloud
part cloud
cloud
part cloud
light rain
light rain
heavy rain
light rain
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:20
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:58
7:59
2
4
14
2
1
Temp °C
12
12
13
13
12
11
10
10
10
9
9
9
9
9
9
10
10
10
12
19
22
24
22
17
9
8
9
8
8
7
5
6
6
5
5
5
5
6
7
8
7
7
9
17
18
21
19
13
Swell 1
Height (m)
Direction
Period (s)
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
1.7
ESE
9
1.2
SE
11
1.9
ESE
10
2
E
10
1.8
ESE
10
1.6
E
10
1.5
E
10
1.5
ESE
9
1.3
ESE
9
1.2
ESE
9
1
ESE
9
0.9
ESE
9
0.9
ESE
9
0.7
ESE
9
Energy kJ
10
10
10
10
10
10
421
344
618
816
653
509
441
367
271
227
177
143
111
77
Swell 2
Height (m)
Direction
Period (s)
0.2
E
7
0.2
E
6
0.1
E
13
0.1
E
12
0.1
E
12
0.9
SE
10
0.8
SSE
10
0.7
SE
10
0.5
SE
9
0.5
SE
9
0.6
SSE
9
0.4
SSE
9
0.4
SE
9
Energy kJ
4
3
3
3
3
177
125
100
41
41
53
31
19
Swell 3
Height (m)
Direction
Period (s)
0.1
E
13
0.1
E
13
0.1
E
13
Energy kJ
3
3
3
Wind waves
Height (m)
Direction
Period (s)
1.1
SSE
5
1.1
SSE
5
1.1
SE
5
1.1
SE
5
1.4
SE
6
1.5
ESE
6
1.8
ESE
6
2.1
ESE
6
2.1
ESE
7
2
E
7
1.4
ENE
6
2.3
ESE
10
0.8
NNE
5
0.6
N
4
0.2
WSW
2
0.4
SW
3
0.3
SW
3
0.4
SSW
3
0.5
S
4
0.9
SSE
5
1.1
S
6
Energy kJ
66
61
57
58
118
154
222
372
395
388
131
999
28
15
1
2
1
3
7
47
78
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
2
1
2
2
2
3
3
3
2
2
2
2
1
1
1
1
Distance (km)
381
351
316
287
182
166
166
75
52
52
81
25
25
13
13
0
0
0
0
0
0
0
0
75
Best forecast wave conditions in Massachusetts
Rating
(10 max)
2
2
2
2
2
2
2
2
3
3
2
2
2
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
1
1
2
2
2
2
3
2
2
3
3
3
3
3
3
3
2
1
4
4
Header Global
Rating
(10 max)
5
4
5
5
5
5
5
6
5
5
5
5
5
5
5
5
5
4
5
7
5
6
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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