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Surf Forecasts:

Cannons surfForecast / HAW – Kaua'i / USA

information circle16 Day Weather and Surf, issued 1 am Tuesday 17 Mar 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
24.7° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Cannons this week:

The surf forecast for Cannons over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Mar 17) at 11AM. The primary swell is predicted to be 1.8m and 12s period with a secondary swell of 0.8m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cannons in the next 16 days are 3.0m 11s and forecast to arrive on Tuesday (Mar 24) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (Mar 23) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 17th Mar)6ft (1.8m) 12s
Best Surf11AM (Tue 17th Mar)6ft (1.8m) 12s
Most Powerful 8AM (Tue 24th Mar)10ft (3.0m) 11s

Table - best surf conditions forecast for Cannons over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 10mm), heaviest on Thu afternoon. Warm (max 25°C on Thu morning, min 21°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 37mm), heaviest during Fri afternoon. Warm (max 25°C on Sun morning, min 22°C on Fri night). Wind will be generally light.

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
3
3
3
2
3
3
2
2
2
3
3
3
3
4
2
2
2
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
NNW
2.1
NNW
2.2
NNW
1.9
NNW
1.8
N
1.6
N
1.4
N
1.2
N
1.1
N
1.3
N
1.5
N
1.6
NNE
1.7
NNE
1.4
NE
1.1
WNW
1.2
WNW
1.1
WNW
0.9
WNW
1.3
N
1.7
N
2.5
NNE
Period(s) (?)121413121211111110101091091614141310911
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9181724150911379406514593232423384774185503535895534803043135051478
Wind
(km/h)
5
N
5
N
5
ESE
10
ENE
5
ENE
10
SSE
0
NE
5
NW
0
SW
5
NE
0
N
0
E
5
SW
5
SSW
15
SW
10
WNW
5
N
10
ESE
10
E
25
NE
30
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoncrosscross-
on		cross-
on		cross-
off		glassglassglassglassglassglassglassoffoffcrosscross-
on		crosscrosscross-
on		cross-
on
High Tide
/ height (m)
2:09PM
0.37
2:22AM
0.51
2:49PM
0.44
2:48AM
0.46
3:31PM
0.50
3:14AM
0.39
4:16PM
0.55
3:40AM
0.32
5:07PM
0.57
4:03AM
0.25
6:06PM
0.58
4:18AM
0.19
7:16PM
0.57
Low Tide
/ height (m)
7:28PM
-0.03
8:11AM
-0.03
8:15PM
-0.00
8:33AM
-0.05
9:05PM
0.03
8:58AM
-0.08
10:02PM
0.08
9:25AM
-0.09
11:12PM
0.12
9:57AM
-0.08
1:03AM
0.14
10:34AM
-0.07
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise6:45--6:43--6:43--6:41--6:41--6:39--6:39--
Sunset-6:47--6:47--6:49--6:49--6:49--6:50--6:50-
light rain
part cloud
part cloud
part cloud
rain showers
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
mod rain
thunderstorm
mod rain
mod rain
thunderstorm
part cloud
cloud
thunderstorm
thunderstorm
heavy rain
heavy rain
Rain (mm)
1---112412912661--1113178
Temp. °C222222242423252524242324242423252423212020
Feels °C (?)242323252525282627272626262725262526222017
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Cannons at:
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Information about the Cannons Surf forecast

The above surf forecast table for Cannons provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cannons can be found by selecting the local surf guide option on the grey menu. Our Cannons surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cannons) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cannons may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a vacation in Kaua'i? If you are looking for accommodation near Cannons, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 36 km (22 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 36 km (22 miles) away

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