
Surf Forecasts:
Wailua/Horners surf forecast from 9 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 10ft (3.0m), 9s period, E swell with 1,552 kJ wave energy.
Best Forecast Surf Conditions for Wailua/Horners this week:
The most powerful waves expected at Wailua/Horners in the next 16 days are 3.0m 9s and forecast to arrive on Saturday (Aug 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 16s period and expected on Thursday (Aug 13) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 15th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Rusty here again. Let’s break down the same outlook but in feet and miles per hour for those who think that way.
Honestly, this is a rough stretch. From now all the way through August, we’ve got almost nothing but poor conditions. That’s a big gap of days with no decent surf in sight. The only break on our radar is Wailua/Horners, a reef break for advanced surfers. It’s inconsistent and can get crowded. Water temp is about 80°F, which is dead normal for this time of year.
First week is a write-off. From the 8th through the 15th, onshore winds (ENE to NE, 12 to 19 mph) keep things bumpy. Swell hangs between 4 ft and 10 ft, but the period is a short 6 to 9 seconds – classic windswell. The wave energy is moderate, climbing from 167 to 1277 by the 15th, but with onshore and cross-onshore winds, it’s messy. By the 15th and 16th, you get strong breeze (20 to 31 mph) and bigger swell (8 ft to 12 ft), but the wind is cross-onshore or onshore – it’s a kite-surfing setup more than a paddle-surfing one.
Then on Monday the 17th of August, there’s a slight shift. Morning brings a cross-shore SE wind at 16 mph, with swell around 8 ft from the east, period 8 seconds, energy 819 – still only “marginal.” But by the afternoon, the wind drops to a light breeze from the SE at 6 mph, giving a near-glassy cross-shore with just small ripples. Swell is 7 ft, energy 562. That afternoon window might be your only chance for something halfway decent if you’re experienced. The rest of the 16-day outlook after that is back to onshore wind and poor surf.
So, if you’re an expert who can handle an inconsistent reef, you might get a brief session on the afternoon of Monday the 17th of August at Wailua/Horners. Otherwise, this is a long, dry run. The spot doesn’t break often anyway, so a stretch like this isn’t totally out of the ordinary. Keep an eye on it – forecasts can flip – but right now, the board stays in the car.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Mon morning. Warm (max 26°C on Sat afternoon, min 24°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 |
Wave Graph | ||||||||||||||||||||
132 | 148 | 220 | 209 | 212 | 249 | 280 | 223 | 183 | 181 | 177 | 189 | 150 | 184 | 247 | 274 | 343 | 430 | 603 | 856 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on |
High Tide | 10:59PM0.32m | 1:40PM0.82m | 00:28AM0.35m | 2:19PM0.85m | 1:29AM0.39m | 2:54PM0.85m | 2:21AM0.43m | 3:26PM0.83m | 3:09AM0.47m | 3:55PM0.78m | 3:57AM0.51m | 4:21PM0.72m | 4:45AM0.53m | |||||||
Low Tide | 8:54PM0.31m | 5:38AM0.05m | 9:00PM0.28m | 6:37AM0.02m | 9:19PM0.25m | 7:29AM0.01m | 9:42PM0.23m | 8:15AM0.03m | 10:06PM0.21m | 8:59AM0.07m | 10:30PM0.18m | 9:42AM0.14m | 10:54PM0.17m | |||||||
— | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | |
mm | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 26 | 26 | 27 | 26 | 27 | 27 | 27 | 26 | 27 | 28 | 25 | 25 | 25 | 24 | 26 | 26 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | NE 10 | NE 9 | SSW 17 | SSW 17 | S 16 | S 16 | S 15 | S 15 | E 7 | S 14 | S 14 | S 18 | S 18 | S 16 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 |
35 | 31 | 97 | 100 | 129 | 129 | 115 | 168 | 183 | 148 | 181 | 416 | 620 | 755 | 728 | 582 | 524 | 422 | 333 | 324 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | NNW 10 | NNW 9 | NNW 9 | NNW 8 | SSE 9 | S 15 | SSE 9 | S 20 | S 13 | S 13 | SE 9 | W 12 | SE 9 | W 12 | W 12 | ESE 13 | E 12 |
40 | 59 | 58 | 34 | 29 | 26 | 22 | 33 | 110 | 32 | 268 | 168 | 121 | 12 | 11 | 13 | 11 | 11 | 57 | 104 | |
Swell 3 Height (m) Direction Period (s) | S 10 | SSE 10 | NE 9 | SSE 10 | SSE 10 | SE 10 | SE 10 | NNW 8 | SSE 9 | S 21 | SE 9 | SE 9 | SE 9 | W 12 | NNW 8 | W 11 | NNW 7 | E 14 | NNW 10 | SE 14 |
17 | 19 | 21 | 18 | 37 | 23 | 24 | 12 | 33 | 80 | 20 | 20 | 19 | 25 | 6 | 10 | 5 | 16 | 18 | 66 | |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | — | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 |
132 | 148 | 220 | 209 | 212 | 249 | 280 | 223 | — | 181 | 177 | 189 | 150 | 184 | 247 | 274 | 343 | 430 | 603 | 856 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 35 | 24 | 24 | 24 | 24 | 35 | 24 | 24 | 35 | 35 | 36 | 35 | 24 | 24 | 24 | 35 | 35 | 35 | 35 | 35 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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











