
Surf Forecasts:
Wailua/Horners surf forecast from 10 Sep 2026:
- Most powerful swell: Friday 11 Sep, 11PM (local time) - 4.5ft (1.4m), 11s period, ENE swell with 444 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 1.4m 11s and forecast to arrive on Friday (Sep 11) 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 0.5m 13s period and expected on Thursday (Sep 10) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Fri 11th Sep) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s be straight with you. This forecast window is a tough one to call. We've got a solid 16 days of outlook data, but the first stretch is looking pretty grim for any kind of proper surf. The energy in the water is there, but it's messy and coming from the wrong angle for our standout spot.
For the first ten days or so, we're dealing with mostly onshore east-northeast winds and that’s going to keep things chopped up and poor. The swell is small and short-period, which means it'll be weak and disorganized. We're looking at a lot of days where you'd paddle out and just be fighting for a grovelly, closeout wave. Not worth the effort for most of us.
The real issue is that the swell direction is coming from the ENE and E, which is cross-on and onshore for our main break. That's a recipe for windslop, not for clean waves. The combined energy is moderate at times, in the 300 to 450 range on the 10th and 11th, but it's all that messy, short-period stuff. Not our friend.
Now, on the 24th of September, things start to shift. The morning is still poor, but the afternoon shows a new, long-period WNW swell arriving at 20 seconds. That's a very long-period groundswell, and the energy jumps right up to 532. This is the kind of swell that has real potential for a place like Wailua/Horners. It's a reef break that loves a west-northwest swell, and the direction is bang on the optimum.
This is our standout window. This is a quality, long-period swell that will wrap in properly. The break is only for the advanced crew, but when this kind of energy arrives, that's exactly who it's for. The long period can make beach breaks close out, but at a reef setup like this, it should hold its shape nicely.
The energy keeps building into the 25th, hitting 666, which is strong to very strong. The swell backs off a touch in height, but the period stays long. This is looking like the best two sessions of the entire forecast. It's a long way out, so take it with a grain of salt, but the signs are there.
We’ve got a long, flat spell before then, so if you're waiting for that, you're going to have to be patient. It’s looking like a blank run until the 24th. But when that WNW groundswell shows up, it could be well worth the wait.
Alright, that's the skinny on it. Keep your eyes on that forecast for the end of the month. This is Rusty, signing off.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 27°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 24°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | ENE 8 | E 7 | ENE 7 | E 7 | E 11 | ENE 11 | E 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | ENE 6 | NE 8 | NE 8 | NE 7 | E 11 | E 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
202 | 285 | 245 | 123 | 350 | 436 | 196 | 122 | 115 | 132 | 129 | 145 | 138 | 115 | 60 | 101 | 84 | 65 | 83 | 324 | 416 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on |
High Tide | 2:45PM0.72m | 3:04AM0.59m | 3:10PM0.67m | 3:44AM0.63m | 3:31PM0.61m | 4:24AM0.65m | 3:48PM0.55m | 5:05AM0.65m | 4:00PM0.50m | 5:50AM0.63m | 4:02PM0.45m | 6:45AM0.61m | 3:21PM0.43m | ||||||||
Low Tide | 8:13AM0.12m | 9:10PM0.15m | 8:56AM0.16m | 9:30PM0.13m | 9:39AM0.22m | 9:51PM0.11m | 10:22AM0.27m | 10:11PM0.11m | 11:07AM0.33m | 10:32PM0.12m | 12:00PM0.38m | 10:55PM0.13m | 1:36PM0.42m | 11:22PM0.15m | |||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | |
mm | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 |
Temp °C | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 26 |
Feels °C | 29 | 27 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 26 | 27 | 27 | 28 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | NE 8 | E 11 | ENE 11 | E 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | E 9 | SW 17 |
108 | 104 | 99 | 67 | 350 | 436 | 196 | 118 | 115 | 132 | 129 | 145 | 138 | 115 | 53 | 101 | 84 | 65 | 69 | 194 | 76 | |
Swell 2 Height (m) Direction Period (s) | NW 8 | S 13 | SSW 12 | E 11 | NE 8 | SSE 8 | NE 9 | E 10 | ENE 9 | E 9 | E 9 | SE 9 | SE 8 | SE 8 | SE 8 | E 7 | E 12 | E 7 | E 8 | NE 7 | E 10 |
32 | 84 | 48 | 123 | 82 | 14 | 77 | 122 | 48 | 79 | 59 | 12 | 11 | 10 | 9 | 14 | 46 | 39 | 44 | 53 | 32 | |
Swell 3 Height (m) Direction Period (s) | S 13 | NW 8 | NW 8 | SSE 10 | NW 8 | SSW 15 | SSE 6 | SSE 6 | SSE 8 | NW 13 | SSE 5 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | E 13 | ESE 8 | E 11 | E 11 | SW 18 | SSE 11 |
86 | 20 | 15 | 35 | 17 | 44 | 6 | 6 | 6 | 28 | 2 | 14 | 12 | 12 | 10 | 28 | 13 | 39 | 83 | 79 | 13 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 7 | ENE 7 | E 7 | — | E 11 | — | — | E 4 | — | — | ESE 5 | E 4 | — | ENE 6 | — | E 6 | — | — | E 8 | ENE 8 |
202 | 285 | 245 | 120 | — | 332 | — | — | 25 | — | — | 7 | 10 | — | 60 | — | 19 | — | — | 324 | 416 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 35 | 36 | 35 | 35 | 22 | 25 | 22 | 22 | 25 | 22 | 24 | 31 | 35 | 24 | 35 | 35 | 23 | 35 | 24 | 24 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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










