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Surf Forecasts:

Plum Island surf break

Plum Island surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 6 am Wednesday 21 Jan 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
4.8° 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 9AM is: 0.4m 9s primary swell from a Southeast direction and 0.2m 8s secondary swell from a South-southeast direction (forecast issued at 06:00am January 21). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EST) & DateWave HeightWave Period
Morning (21 Jan)1.5ft (0.4m)9s
Afternoon (21 Jan)1.5ft (0.4m)10s
Evening (21 Jan)1.5ft (0.4m)9s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
21
Thursday
22
Friday
23
Sat
24
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.7
SSE
0.4
ESE
0.4
ESE
0.4
SE
0.4
ESE
0.5
SE
0.5
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
Period(s) (?)99101010109991071091111111111111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)261923232323232323254735352944555641303029292930
Wind
(km/h)
20
WSW
20
WSW
20
WSW
20
SW
20
SW
25
SSW
30
SSW
25
SSW
30
SW
25
SW
30
WSW
20
WSW
20
WSW
25
W
25
W
30
W
20
W
25
WSW
25
WSW
25
WSW
30
W
35
WNW
35
W
35
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffoffcross-
off		cross-
off		cross-
off		offoffoffcross-
off
High Tide
/ height (m)
1:07PM
2.66
1:36AM
2.47
1:49PM
2.64
2:17AM
2.53
2:33PM
2.58
Low Tide
/ height (m)
7:29AM
0.21
7:58PM
-0.04
8:08AM
0.17
8:33PM
-0.03
8:50AM
0.13
9:12PM
0.00
Wednesday
21
Thursday
22
Friday
23
Sat
24
Sunrise--7:07-------7:07-------7:05-----
Sunset----4:40-------4:42-------4:44---
clear
clear
clear
cloud
cloud
cloud
cloud
light snow
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
clear
part cloud
clear
Rain (mm)
------------------------
Temp. °C-10-10-8-5-4-4-11222441-2-3-4-4-3-2-3-9-11-14
Feels °C (?)-17-17-15-12-11-12-9-6-6-5-6-2-3-6-10-12-11-12-11-11-12-20-21-25
  • 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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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.

View detailed surf forecast for Plum Island at:
surf-forecast.com

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