Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 12 pm Thursday 05 Mar 2026 EST
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
2.4° C
(Which is slightly cooler than normal)

How big are the waves at Plum Island today?

The current surf forecast for Plum Island at 7PM is: 1.9m 6s primary swell from a East-northeast direction and 0.4m 12s secondary swell from a Southeast direction, 0.4m 8s secondary swell from a Southeast direction (forecast issued at 12:00pm March 05). The wind direction is predicted to be onshore.

Time (EST) & DateWave HeightWave Period
Morning (05 Mar)1.5ft (0.5m)12s
Afternoon (05 Mar)4.5ft (1.3m)5s
Evening (05 Mar)6ft (1.9m)7s

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


Updates in  hr  min  s Forecast update imminent
Thursday
05
Friday
06
Saturday
07
Sunday
08
10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
2
2
2
2
1
1
1
1
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.5
SE
0.5
SE
1.6
ENE
1.9
ENE
2
ENE
2
ENE
1.7
ENE
1.9
E
2.1
E
2.3
E
2.3
E
2.2
E
2.2
ESE
2
ESE
1.9
ESE
1.8
ESE
1.6
ESE
1.6
ESE
1.5
ESE
1.3
ESE
1.3
ESE
1.1
ESE
1
ESE
0.9
ESE
Period(s) (?)12126677667889999999999999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6868145266361340237293436604727725708600542499432397351254260206169140
Wind
(km/h)
15
NE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
30
NE
30
NE
25
NE
25
ENE
15
ENE
10
ENE
5
ESE
10
SSE
10
S
20
SSW
20
SSW
20
SSW
25
SSW
25
SW
25
SW
20
SW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
12:59PM
2.57
1:18AM
2.54
1:39PM
2.45
1:55AM
2.48
2:19PM
2.32
2:33AM
2.41
Low Tide
/ height (m)
7:19AM
-0.15
7:40PM
-0.13
8:03AM
-0.12
8:21PM
-0.01
8:47AM
-0.05
9:02PM
0.13
Thursday
05
Friday
06
Saturday
07
Sunday
08
Sunrise-------6:11-------6:09-------6:07
Sunset--5:37-------5:37-------5:38-----
cloud
cloud
cloud
cloud
light snow
light snow
light snow
light snow
light snow
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
Rain (mm)
------------------------
Temp. °C31-1-1-1-1-1-1-1000001112346889
Feels °C (?)-1-7-9-9-9-8-8-9-9-7-7-5-4-3-2-3-4-3-2-21346
  • 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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