Surf Forecasts:
Wailua/Horners surf forecast from 14 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11PM (local time) - 7ft (2.2m), 9s period, ENE swell with 689 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 2.2m 9s and forecast to arrive on Thursday (Sep 17) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 15s period and expected on Sunday (Sep 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 17th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright, Rusty here again. Let's break down what's on the menu for Wailua/Horners. This is a reef break that needs the swell from the north to get going, but the next couple of weeks look like a real test of patience.
The first week and a half is a tough slog. From Monday, September 14th, all the way through to Saturday, September 26th, the surf is poor. The wind is onshore or cross-onshore every day, blowing from the ENE and NE at 15 to 25 mph, chopping up the surface. The swell stays small, ranging from about 2 ft to 7 ft, but it’s all short-period windswell (6 to 10 seconds). Even when the wave energy gets up, the onshore wind kills the quality. There are even a few days with a chance of thunderstorms. Not good.
Then, at the very end of the forecast, we get a window. On Monday, September 28th, the morning turns glassy. The wind drops to almost nothing (5 mph from the NNE), and the swell, though only 2 ft, has a period of 15 seconds from the NW. That’s a long-period groundswell, and it's the only real standout. The energy is solid (472). For a reef that loves north swell, this should produce clean, lined-up waves. The water temp is 80°F, which is about normal for this time of year. The catch is that this spot can be inconsistent, so you need to be there when it’s on.
The afternoon of the 28th the wind goes cross-on, and by Tuesday the 29th the swell is fading and the wind is back. So, that Monday morning is your best shot. Other than that, it’s a long wait.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Tue morning. Warm (max 27°C on Wed afternoon, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 52mm), heaviest during Fri morning. Warm (max 27°C on Fri afternoon, min 25°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
AM | 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) | NE 8 | NE 8 | NE 8 | NE 8 | E 6 | NNE 8 | ENE 6 | ENE 6 | NNE 8 | E 10 | ENE 8 | E 9 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 118 | 82 | 69 | 64 | 62 | 48 | 103 | 106 | 100 | 331 | 469 | 461 | 534 | 381 | 373 | 422 | 427 | 381 | 418 | 398 | 346 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on |
High Tide | 4:00PM0.50m | 5:50AM0.63m | 4:02PM0.45m | 6:45AM0.61m | 3:21PM0.43m | 8:07AM0.58m | 9:59AM0.58m | 11:18AM0.61m | 12:03PM0.64m | 11:36PM0.32m | |||||||||||
Low Tide | 11:07AM0.33m | 10:32PM0.12m | 12:00PM0.38m | 10:55PM0.13m | 1:36PM0.42m | 11:22PM0.15m | 11:58PM0.18m | 1:10AM0.21m | 3:25AM0.22m | 7:55PM0.28m | 4:53AM0.20m | ||||||||||
 | |  |  | |  | | |  |  | | | | | | | | | | | | |
 | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — |
mm | — | — | — | 2 | — | 2 | — | — | 4 | 2 | 4 | 14 | 12 | 5 | 5 | 4 | 2 | 4 | 2 | 1 | 1 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 27 | 26 | 27 | 27 | 28 | 27 | 29 | 26 | 26 | 27 | 26 | 27 | 28 | 26 | 26 | 28 | 26 | 26 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 5 | NE 7 | E 10 | NNE 8 | E 10 | SSW 19 | NNE 7 | SSW 17 | NNE 7 | NNE 6 | NNE 6 | SSW 15 | S 16 | S 16 | S 15 | S 15 |
| kJ | 118 | 82 | 69 | 64 | 60 | 48 | 75 | 72 | 100 | 331 | 72 | 113 | 166 | 50 | 31 | 32 | 131 | 190 | 248 | 215 | 275 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SSE 8 | SSE 8 | E 13 | E 12 | NNE 8 | E 6 | SW 18 | E 10 | SW 16 | SSW 16 | SSW 18 | SSE 10 | SSW 16 | SSW 16 | SSW 15 | N 6 | SSE 8 | SSE 6 | SSE 8 | SSE 8 |
| kJ | 11 | 6 | 6 | 29 | 46 | 37 | 43 | 79 | 100 | 64 | 47 | 180 | 9 | 153 | 146 | 87 | 21 | 26 | 16 | 13 | 11 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | WNW 11 | E 14 | SW 20 | SSW 20 | E 11 | E 11 | WNW 10 | SW 17 | SSW 20 | SSE 11 | WNW 11 | NW 10 | SSE 10 | SSE 7 | S 18 | SSE 7 | NNE 7 | NW 9 | W 12 | W 12 |
| kJ | 12 | 12 | 16 | 99 | 75 | 39 | 55 | 9 | 76 | 75 | 11 | 12 | 4 | 9 | 19 | 104 | 19 | 15 | 3 | 12 | 11 |
Wind waves Height (m) Direction Period (s) | E 4 | E 5 | ENE 5 | E 5 | E 6 | E 5 | ENE 6 | ENE 6 | E 6 | NNE 8 | ENE 8 | E 9 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 14 | 15 | 23 | 59 | 62 | 36 | 103 | 106 | 79 | 150 | 469 | 461 | 534 | 381 | 373 | 422 | 427 | 381 | 418 | 398 | 346 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 25 | 24 | 35 | 35 | 24 | 24 | 35 | 23 | 35 | 35 | 24 | 36 | 121 | 24 | 36 | 36 | 36 | 36 | 24 | 24 |
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
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