Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Issued: 7 am 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
14.5° C

1.0°C colder than average for this time of year

Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Plum Island today (23 Jun):

  • Morning surf: Morning surf (23 Jun, local time) - 3.5ft (1.0m), 5s period with SE swell.
  • Afternoon surf: Afternoon surf (23 Jun, local time) - 2.5ft (0.8m), 6s period with SE swell.
  • Evening surf: Evening surf (23 Jun, local time) - 2.5ft (0.7m), 5s period with SE swell.

The current surf forecast for Plum Island at 11AM is: 1.2m 5s primary swell from a South-southeast direction and 0.9m 5s secondary swell from a Southeast direction, 0.1m 11s secondary swell from a East direction (forecast issued at 07:00am June 23). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 Jun)3.5ft (1.0m)5s
Afternoon (23 Jun)2.5ft (0.8m)6s
Evening (23 Jun)2.5ft (0.7m)5s

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 27°C on Wed afternoon, min 15°C on Tue morning). Wind will be generally light.

Tuesday
23
Wednesday
24
Thursday
25
Fri
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)
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SE
5
1
SE
5
1.2
SSE
5
0.9
SE
6
0.8
SE
6
0.7
SE
5
0.6
SE
5
0.6
ESE
6
0.4
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
8
0.6
SE
8
0.5
SE
8
0.6
SSE
8
0.7
SE
3
0.8
SSE
4
0.8
SSE
4
0.6
SSE
4
Wave Graph
Metric surfscale
Energy kJ
55
51
75
52
44
30
23
20
11
41
39
38
39
41
33
44
45
39
31
41
11
18
24
12
Wind (km/h)
10
SSW
10
NNW
15
NNW
10
N
5
NE
10
ESE
5
SW
5
NW
5
WSW
10
W
5
WNW
5
WNW
15
NW
15
NW
10
WNW
10
WNW
10
W
10
W
10
WSW
10
S
10
SSE
10
N
5
NNW
10
SSW
Wind State
cross-off
cross-off
cross-off
cross
glassy
cross-on
glassy
glassy
off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross
cross
cross
glassy
cross-off
High Tide
7:25AM2.20m
7:57PM2.37m
8:29AM2.10m
8:51PM2.36m
9:30AM2.05m
9:41PM2.36m
Low Tide
2:08PM0.20m
2:46AM0.15m
3:02PM0.26m
3:42AM0.11m
3:54PM0.30m
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
clear
clear
rain showers
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:24
8:24
8:24
 mm
6
5
3
1
1
2
1
1
7
Temp °C
18
17
15
16
17
16
16
16
16
17
23
25
27
24
21
21
19
19
23
26
24
22
18
16
Feels °C
19
17
14
16
18
16
17
17
17
17
23
24
24
22
19
19
17
17
22
24
22
21
19
16
Swell 1
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
SE
11
0.9
SE
5
0.9
SE
6
0.8
SE
6
0.7
SE
5
0.6
SE
5
0.6
ESE
6
0.4
ESE
5
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
8
0.6
SE
8
0.5
SE
8
0.1
E
5
0.1
E
5
0.1
E
6
0.7
SSE
4
0.6
SSE
4
Energy kJ
5
5
47
52
44
30
23
20
11
41
39
38
39
41
33
44
45
39
31
1
1
1
16
12
Swell 2
Height (m)
Direction
Period (s)
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.4
SE
7
0.3
E
5
0.3
E
5
0.2
E
5
0.1
E
8
0.3
SSE
3
0.3
SSE
4
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.3
SE
7
0.3
SE
7
Energy kJ
2
2
2
2
2
2
2
11
4
4
2
1
2
3
1
1
1
1
1
8
7
Swell 3
Height (m)
Direction
Period (s)
0.1
E
11
0.1
SE
11
0.1
E
8
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
12
Energy kJ
2
4
1
1
1
1
1
3
Wind waves
Height (m)
Direction
Period (s)
1.1
SE
5
1
SE
5
1.2
SSE
5
0.4
NNE
3
0.3
NNE
3
0.3
NNE
3
0.4
S
3
0.2
WNW
2
0.2
WNW
2
0.6
SSE
8
0.7
SE
3
0.8
SSE
4
0.8
SSE
4
Energy kJ
55
51
75
3
2
2
3
1
1
41
11
18
24
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
Distance (km)
0
13
0
13
4
54
152
170
169
4
4
4
4
4
54
4
4
4
118
2799
863
499
13
231
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
1
1
1
3
3
3
4
4
1
1
1
2
3
3
3
3
2
2
1
2
3
Header Global
Rating
(10 max)
5
5
5
5
7
8
9
9
9
9
8
7
6
5
5
5
5
5
5
4
5
5
5
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
How to use the Wavefinder 

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