Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 6 am Wednesday 31 Dec 2025 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
6.2° 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 12PM is: 0.2m 11s primary swell from a East direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 06:00am December 31). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EST) & DateWave HeightWave Period
Morning (31 Dec)0.5ft (0.2m)11s
Afternoon (31 Dec)0.5ft (0.2m)11s
Evening (31 Dec)0.5ft (0.2m)12s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
31
Thursday
01
Friday
02
Sat
03
4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.3
E
0.3
E
0.3
E
0.4
E
0.4
E
0.4
E
0.4
E
0.4
E
0.4
E
0.4
E
0.4
E
0.3
E
0.3
E
0.3
E
0.3
E
0.2
E
0.2
E
Period(s) (?)121211111111131413131212121212121212121211111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1111101010101334322848484747464544432423222299
Wind
(km/h)
30
W
25
WSW
25
WSW
25
WSW
20
SW
20
SW
20
SSW
25
SSW
25
SW
30
WSW
30
WNW
30
WNW
35
W
30
WNW
25
W
20
WSW
25
WSW
25
WSW
25
W
25
W
20
W
20
W
25
WSW
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
8:07AM
2.78
8:44PM
2.29
9:03AM
2.84
9:46PM
2.34
10:01AM
2.92
10:44PM
2.40
Low Tide
/ height (m)
2:19AM
0.12
3:12PM
-0.19
3:17AM
0.12
4:09PM
-0.27
4:16AM
0.07
5:05PM
-0.35
Wednesday
31
Thursday
01
Friday
02
Sat
03
Sunrise--7:13-------7:13-------7:13-----
Sunset----4:17-------4:19-------4:20---
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
part cloud
clear
clear
clear
Rain (mm)
------------------------
Temp. °C-5-5-3-2-2-2-2-3-10-5-6-7-8-8-8-7-7-6-4-4-4-5-6
Feels °C (?)-14-13-11-10-9-9-9-10-8-8-15-16-17-17-17-16-15-15-14-12-11-11-13-14
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Plum Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest