Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Issued: 1 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
18.8° C

1.2°C warmer than normal 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 (07 Jul):

  • Morning surf: Morning surf (07 Jul, local time) - 0.5ft (0.2m), 10s period with ESE swell.
  • Afternoon surf: Afternoon surf (07 Jul, local time) - 3.5ft (1.0m), 6s period with SE swell.
  • Evening surf: Evening surf (07 Jul, local time) - 5ft (1.5m), 7s period with ESE swell.

The current surf forecast for Plum Island at 6AM is: 0.2m 10s primary swell from a East-southeast direction and 0.2m 9s secondary swell from a East-southeast direction, 0.4m 3s secondary swell from a Southeast direction (forecast issued at 01:00am July 07). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (07 Jul)0.5ft (0.2m)10s
Afternoon (07 Jul)3.5ft (1.0m)6s
Evening (07 Jul)5ft (1.5m)7s

Table - waves today at Plum Island. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 32°C on Thu afternoon, min 16°C on Tue afternoon). Wind will be generally light.

Tuesday
7
Wednesday
8
Thursday
9
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
1
1
2
1
0
0
0
0
1
1
1
1
1
1
0
0
Swell
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)
0.4
SE
10
0.2
ESE
10
0.2
ESE
10
0.8
ESE
5
0.9
SE
5
1.2
SE
6
1.5
ESE
7
1.6
SE
7
1.5
ESE
7
1.5
ESE
7
1.4
ESE
8
1.3
ESE
8
1.3
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1
ESE
8
1
E
8
0.9
ESE
8
0.9
E
8
0.8
E
8
0.7
E
8
0.7
E
8
1.1
S
6
Wave Graph
Metric surfscale
Energy kJ
24
10
10
29
42
109
199
227
237
250
224
215
215
174
163
151
127
124
99
93
74
55
58
74
Wind (km/h)
10
E
5
SE
5
N
10
E
15
E
20
E
15
E
10
NE
10
N
10
NNE
5
NW
5
SE
15
SE
20
SSE
15
S
15
SW
15
WSW
15
WSW
15
WSW
10
SW
15
SW
10
WSW
20
WSW
15
SW
Wind State
on
cross-on
glassy
on
on
on
on
cross-on
cross
cross
glassy
cross-on
cross-on
cross
cross
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:15AM2.42m
5:44PM2.54m
6:07AM2.36m
6:36PM2.61m
7:04AM2.31m
7:30PM2.68m
Low Tide
11:37PM0.31m
11:52AM0.21m
00:31AM0.24m
12:42PM0.23m
1:30AM0.16m
1:36PM0.25m
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
 mm
1
2
1
1
Temp °C
20
19
18
19
18
16
17
17
16
16
16
19
21
22
21
21
20
20
22
28
32
31
28
23
Feels °C
20
19
19
19
17
14
16
16
15
16
17
19
19
20
20
20
18
19
22
28
31
31
28
24
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
10
0.2
ESE
10
0.5
SE
4
0.6
SE
5
0.2
ESE
8
1.6
SE
7
1.5
ESE
7
1.5
ESE
7
1.4
ESE
8
1.3
ESE
8
1.3
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1
ESE
8
1
E
8
0.9
ESE
8
0.9
E
8
0.8
E
8
0.7
E
8
0.7
E
8
0.6
E
7
Energy kJ
24
10
8
15
6
227
237
250
224
215
215
174
163
151
127
124
99
93
74
55
55
39
Swell 2
Height (m)
Direction
Period (s)
0.1
E
10
0.2
ESE
8
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.2
SSE
10
0.2
ESE
10
0.1
SE
10
0.1
SE
10
Energy kJ
2
6
10
9
9
4
4
4
10
10
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.2
E
9
0.2
ESE
8
0.2
ESE
8
0.2
E
9
Energy kJ
2
7
6
6
7
Wind waves
Height (m)
Direction
Period (s)
0.4
SE
3
0.4
SE
3
0.8
ESE
5
0.9
SE
5
1.2
SE
6
1.5
ESE
7
0.5
S
3
0.8
SSW
4
0.8
SSW
4
0.6
SW
4
0.6
SW
4
0.5
SW
3
0.6
SSW
3
0.7
S
4
1
S
5
1.1
S
6
Energy kJ
3
4
29
42
109
199
5
19
16
10
10
5
9
13
58
74
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
1755
1216
553
319
187
3519
319
25
13
13
0
81
81
81
110
4
0
0
0
0
0
0
4
4
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
2
1
1
2
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
3
2
3
3
3
3
3
3
2
2
2
3
3
3
3
3
2
3
2
2
Header Global
Rating
(10 max)
5
5
5
5
7
9
9
9
8
7
6
7
7
7
7
7
7
7
6
6
6
6
6
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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