Plum Island Surf Break

Lat Long: 42.80° N 70.81° W

Plum Island 48 hour detailed Surf Forecast

Issued: 1 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Plum Island sea temperature is
17.9° C
0.8° 

Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Plum Island today (19 Jul):

  • Morning surf: Morning surf (19 Jul, local time) - 1.5ft (0.5m), 6s period with SSE swell.
  • Afternoon surf: Afternoon surf (19 Jul, local time) - 1.5ft (0.4m), 6s period with SE swell.
  • Evening surf: Evening surf (19 Jul, local time) - 1.5ft (0.4m), 7s period with SE swell.

The current surf forecast for Plum Island at 5AM is: 0.9m 6s primary swell from a South-southeast direction and 0.1m 13s secondary swell from a Southeast direction (forecast issued at 01:00am July 19). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (19 Jul)1.5ft (0.5m)6s
Afternoon (19 Jul)1.5ft (0.4m)6s
Evening (19 Jul)1.5ft (0.4m)7s

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


Short Range Forecast

Heavy rain (total 22mm), heaviest during Tue night. Warm (max 26°C on Sun afternoon, min 17°C on Sun night). Winds increasing (light winds from the NW on Mon morning, fresh winds from the SSE by Tue afternoon).

Sunday
19
Monday
20
Tuesday
21
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
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
1
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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
S
6
0.9
SSE
6
0.6
SSE
6
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.6
SSE
3
1
SSE
4
1.1
S
5
0.8
S
4
0.6
S
4
0.5
S
4
0.5
SSE
4
0.9
SSE
4
1.1
SE
5
1.1
SE
5
1.3
SE
6
Wave Graph
Metric surfscale
Energy kJ
98
68
29
15
10
10
10
6
6
6
6
7
7
8
38
53
23
12
8
7
31
54
66
100
Wind (km/h)
25
SW
20
W
30
WNW
25
NW
20
NW
20
NW
15
NW
10
WNW
15
W
10
W
10
WNW
5
NW
10
SSE
20
SSE
20
S
20
SSW
15
SW
10
SSW
10
S
20
SSE
30
SSE
25
SE
15
SE
15
SSE
Wind State
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
3:59AM2.60m
4:33PM2.50m
4:52AM2.41m
5:24PM2.43m
5:48AM2.23m
6:16PM2.36m
Low Tide
10:51AM-0.08m
11:19PM0.09m
11:43AM0.05m
00:17AM0.13m
12:37PM0.19m
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:15
8:15
 mm
4
2
8
Temp °C
22
21
18
21
24
26
23
19
18
17
18
24
24
25
23
21
19
18
18
22
24
22
19
20
Feels °C
22
21
13
16
20
21
20
16
14
14
15
22
22
21
19
17
16
17
18
20
20
20
19
21
  • 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
How to use the Wavefinder 

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.


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