Cannons surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 1 pm Monday 20 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Cannons surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cannons sea temperature is
24.8° C
(Which is slightly warmer than usual)

How big are the waves at Cannons today?

The current surf forecast for Cannons at 7PM is: 0.5m 13s primary swell from a West direction and 0.6m 7s secondary swell from a North-northeast direction (forecast issued at 01:00pm April 20). The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (20 Apr)2ft (0.6m)11s
Afternoon (20 Apr)1.5ft (0.5m)11s
Evening (20 Apr)1.5ft (0.5m)13s

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


Updates in  hr  min  s Forecast update imminent
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
Rating
(10 max)
0
0
0
1
1
1
1
2
1
1
2
2
2
3
3
4
3
2
2
1
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.5
NW
0.5
NW
0.4
NW
0.5
W
0.5
W
0.5
W
0.5
W
0.7
W
0.7
W
0.7
W
0.8
W
0.7
W
0.8
NNW
1.1
NW
0.9
NNW
1.2
NW
1.2
NW
1.2
NW
1.3
NNE
1.2
NNE
1.1
NNE
1.3
NNE
1.1
NNE
1
NNE
Period(s) (?)111111131415161616161515151414131313121212121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5756408789115124240240236283205275529357525509501466412353414297247
Wind
(km/h)
5
NNW
5
NNW
5
N
5
N
5
NE
0
ESE
0
ESE
5
SSE
5
N
5
NNW
10
NNW
5
NNE
5
NE
5
NE
5
NE
5
ENE
10
NE
10
NE
10
NE
15
NE
15
ENE
15
ENE
15
E
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
glassglassglassglassglassglasscross-
on
cross-
on
cross-
on
glassonglassglassglasscross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
5:52PM
0.66
4:28AM
0.12
6:56PM
0.63
6:02AM
0.09
8:06PM
0.59
Low Tide
/ height (m)
9:23AM
-0.10
1:54AM
0.09
10:07AM
-0.07
3:38AM
0.07
11:03AM
-0.02
4:23AM
0.05
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise-------6:13-------6:11-------6:11
Sunset--7:00-------7:00-------7:00-----
part cloud
thunderstorm
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
rain showers
cloud
clear
clear
clear
clear
clear
part cloud
rain showers
part cloud
clear
clear
part cloud
part cloud
Rain (mm)
-1-------11-------1-----
Temp. °C252525242423232425242424232323232424242323222222
Feels °C (?)272728272726272728262627262626262625262425232323
  • 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

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 Cannons 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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