Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Monday 16 Mar 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
3.2° 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 11AM is: 2.5m 7s primary swell from a Southeast direction (forecast issued at 07:00am March 16). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (16 Mar)7.5ft (2.3m)6s
Afternoon (16 Mar)8ft (2.5m)8s
Evening (16 Mar)10ft (3.0m)8s

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


Updates in  hr  min  s Forecast update imminent
Monday
16
Tuesday
17
Wednesday
18
Thu
19
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
1
0
0
0
0
2
3
2
2
2
2
2
2
1
2
2
1
1
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
SE
2.2
SE
2.5
SE
2.5
SE
2.4
SE
2.5
SE
3.5
SSE
3.5
SSE
3.5
SSE
2.5
SE
2
SE
1.8
SE
1.7
SE
1.6
SE
1.4
SE
1.3
SE
1.1
SE
1.1
SE
1
SE
1
SE
1
SE
1.1
SE
0.9
ESE
0.9
ESE
Period(s) (?)66788889101010101111111110101010101099
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1503636817756649581485209221541281727602639568479375270226196192188204154151
Wind
(km/h)
25
SE
35
SE
30
SSE
25
S
30
S
30
S
40
S
50
S
30
SW
30
W
30
WSW
35
W
30
W
30
WNW
30
WNW
25
W
25
W
25
W
25
WNW
15
WNW
5
WSW
15
S
15
S
15
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscrosscrosscrosscrosscrosscross-
off
offoffoffoffoffoffoffoffoffoffcross-
off
offcrosscross-
off
cross
High Tide
/ height (m)
10:24AM
2.45
10:53PM
2.30
11:10AM
2.55
11:35PM
2.47
11:54AM
2.63
12:16AM
2.62
Low Tide
/ height (m)
4:55AM
0.37
5:25PM
0.14
5:37AM
0.21
6:03PM
0.03
6:18AM
0.05
6:40PM
-0.06
Monday
16
Tuesday
17
Wednesday
18
Thu
19
Sunrise-6:54-------6:52-------6:50------
Sunset----6:50-------6:51-------6:52---
cloud
light rain
mod rain
light rain
heavy rain
light rain
heavy rain
light rain
light rain
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
cloud
cloud
Rain (mm)
-3811221221---------------
Temp. °C4691313131415115333-1-3-4-4-5-302100
Feels °C (?)-2-23988774-3-6-7-6-10-12-13-12-13-11-6-3-5-6-6
  • 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

Latest Updates

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