Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Thursday 30 Apr 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
8.0° 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 12PM is: 1.9m 10s primary swell from a East-southeast direction (forecast issued at 07:00am April 30). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (30 Apr)6.5ft (2.0m)10s
Afternoon (30 Apr)6ft (1.9m)10s
Evening (30 Apr)5.5ft (1.7m)10s

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 4mm), mostly falling on Thu afternoon. Very mild (max 14°C on Fri afternoon, min 6°C on Sat morning). Wind will be generally light.

Thursday
30
Friday
1
Saturday
2
Sun
3
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)
2
3
3
3
3
3
3
2
2
2
2
1
2
2
2
1
1
1
1
0
0
0
1
1
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
2
ESE
10
2
ESE
10
2
ESE
10
1.9
ESE
10
1.8
ESE
10
1.8
ESE
10
1.7
ESE
10
1.6
ESE
10
1.5
ESE
9
1.4
ESE
9
1.4
ESE
9
1.4
ESE
9
1.3
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
E
9
1
E
8
1
E
9
1
E
9
1
E
9
1
E
9
1
E
9
Wave Graph
Metric surfscale
Energy kJ
810
778
763
657
579
579
508
452
367
307
300
294
249
238
197
193
193
181
147
151
162
162
165
162
Wind (km/h)
5
N
10
NNW
5
NNW
5
NW
5
NW
10
WNW
10
WNW
5
WNW
10
WNW
15
WNW
15
NW
20
WNW
15
NW
5
NNW
10
NW
5
WNW
10
WNW
10
N
5
E
10
SE
15
SSE
10
S
10
SSW
5
W
cross
cross-off
glassy
glassy
glassy
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
glassy
cross-off
cross
glassy
cross-on
cross-on
cross
cross-off
glassy
High Tide
12:00PM2.34m
00:08AM2.52m
12:39PM2.31m
00:43AM2.52m
1:15PM2.27m
1:17AM2.51m
Low Tide
6:10AM-0.09m
6:25PM0.08m
6:54AM-0.13m
7:06PM0.13m
7:35AM-0.12m
7:46PM0.20m
light rain
cloud
light rain
light rain
cloud
cloud
cloud
part cloud
part cloud
clear
clear
cloud
part cloud
clear
clear
cloud
cloud
light rain
part cloud
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:37
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:42
7:43
7:44
7:45
1
1
2
1
Temp °C
7
7
8
8
9
9
8
8
7
8
12
14
14
12
10
8
7
6
7
8
10
9
9
8
5
5
6
6
8
7
6
6
4
4
7
9
9
9
7
6
3
3
5
5
6
6
6
6
Swell 1
Height (m)
Direction
Period (s)
2
ESE
10
2
ESE
10
2
ESE
10
1.9
ESE
10
1.8
ESE
10
1.8
ESE
10
1.7
ESE
10
1.6
ESE
10
1.5
ESE
9
1.4
ESE
9
1.4
ESE
9
1.4
ESE
9
1.3
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
E
9
1
E
8
1
E
9
1
E
9
1
E
9
1
E
9
1
E
9
Energy kJ
810
778
763
657
579
579
508
452
367
307
300
294
249
238
197
193
193
181
147
151
162
162
165
162
Swell 2
Height (m)
Direction
Period (s)
0.2
W
3
0.1
E
15
0.7
ESE
8
Energy kJ
1
4
61
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
0.3
WNW
2
0.7
SSE
4
0.7
SSE
4
0.7
S
4
0.5
S
4
Energy kJ
1
13
16
14
7
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
1
1
2
1
1
1
1
1
1
Distance (km)
13
0
0
0
0
0
0
0
0
0
0
9
0
0
0
0
0
9
0
75
75
4
0
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
1
1
3
1
1
2
1
1
3
Header Global
Rating
(10 max)
5
5
5
6
6
6
7
7
6
6
5
5
9
5
5
5
5
4
4
4
4
5
4
4
  • 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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