Wailua/Horners surfForecast / HAW – Kaua'i / USA

information circle16 Day Weather and Surf, issued 1 pm Saturday 18 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Wailua/Horners surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Wailua/Horners sea temperature is
24.8° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Wailua/Horners this week:

The surf forecast for Wailua/Horners over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 20) at 2AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.9m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Wailua/Horners in the next 16 days are 1.4m 14s and forecast to arrive on Wednesday (Apr 22) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 7s period and expected on Saturday (Apr 18) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 20th Apr)2ft (0.6m) 12s
Best Surf 5AM (Wed 22nd Apr)3.5ft (1.1m) 14s
Most Powerful 8AM (Wed 22nd Apr)4.5ft (1.4m) 14s

Table - best surf conditions forecast for Wailua/Horners over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 4mm), mostly falling on Mon afternoon. Warm (max 25°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 25°C on Tue afternoon, min 22°C on Thu night). Wind will be generally light.

Sat
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
1
1
0
2
2
2
3
3
4
2
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
E
0.5
NW
0.6
NW
0.6
NW
0.6
NW
0.5
NW
0.8
E
0.5
W
0.6
W
0.7
W
1
NNE
1.3
NNE
1.3
NNE
1.1
NNE
1
NNE
0.7
W
0.7
WNW
0.7
WNW
0.6
WNW
0.6
WNW
0.7
NW
Period(s) (?)6111312121171516151513121211151413121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1125810490845762104176221449528494347247215213178117106126
Wind
(km/h)
10
E
15
E
15
E
15
E
5
S
5
SSE
5
ESE
10
SW
0
S
5
N
5
N
5
E
5
N
10
NE
15
NE
20
NE
15
NNE
15
ENE
15
NE
20
ENE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on
oncross-
off
glasscross-
on
offglassglassglasscross-
on
glasscross-
on
oncross-
on
cross-
on
onononon
High Tide
/ height (m)
4:26PM
0.81
3:10AM
0.44
5:16PM
0.81
3:31AM
0.39
6:12PM
0.78
3:30AM
0.35
7:19PM
0.74
8:35PM
0.71
9:48PM
0.68
10:38AM
0.31
10:48PM
0.66
11:57AM
0.39
Low Tide
/ height (m)
11:04PM
0.31
9:36AM
0.00
12:16AM
0.34
10:11AM
0.02
2:11AM
0.35
10:51AM
0.06
11:39AM
0.12
12:52PM
0.19
6:10AM
0.25
2:52PM
0.25
6:20AM
0.21
Sat
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise--6:13--6:13--6:11--6:11--6:11--6:09--6:09
Sunset6:58--6:58--6:59--6:59--6:59--7:00--7:00--
clear
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
clear
rain showers
part cloud
clear
rain showers
part cloud
clear
clear
clear
part cloud
clear
rain showers
cloud
Rain (mm)
------22-3--2------2-
Temp. °C252424242325242425252424242424242324242323
Feels °C (?)262625242428262728282727272625242424242323
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Wailua/Horners Surf forecast

The above surf forecast table for Wailua/Horners provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wailua/Horners can be found by selecting the local surf guide option on the grey menu. Our Wailua/Horners 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 (Wailua/Horners) 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 Wailua/Horners 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 Wailua/Horners, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 8 km (5 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 9 km (6 miles) away

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