
Surf Forecasts:
Wailua/Horners surf forecast from 13 Sep 2026:
- Most powerful swell: Friday 18 Sep, 11AM (local time) - 7ft (2.2m), 9s period, E swell with 732 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 Friday (Sep 18) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 8s period and expected on Saturday (Sep 19) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Fri 18th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright, let’s get into it. These next 16 days? Honestly, they’re looking pretty barren for Wailua/Horners. We’ve got a solid stretch of nothing but poor surf conditions lined up, and that’s a tough one to take.
Right off the bat, for the next several days, we’re looking at weak, short-period slop. The swell is small, the energy is low – we’re talking combined energy readings in the low hundreds, like 5 to 6 feet of mix, which just isn’t enough to get this spot working. The wind is onshore and blowing sideshore, which just makes it a total mess. Water temp is sitting at around 80°, which is about average for this time of year, so you won’t need a thick suit, but you might not even bother paddling out for this dribble.
There’s a bit more energy kicking in around Thursday the 17th and Friday the 18th, with the swell bumping up to the 5 to 7-foot range. The combined energy jumps up to 391 and then 569, which is a sign of more push, but the period is still short, and the wind is cross-onshore with a risk of thunderstorms. It’s still going to be messy. This isn’t a tap-in, it’s a battle.
The mid-period, from around the 20th to the 22nd, sees the energy settle into the moderate range, but the waves stay below 7 feet and the period remains short at 8 seconds. It’s more of the same – onshore winds, poor conditions, and a lot of chop. Nothing to get excited about.
Then, around the 23rd and 24th, we finally see a pulse of real groundswell. The period jumps up to 11 and 12 seconds, and the combined energy goes through the roof, hitting 1239. That’s strong energy, and the swell is pushing 7 feet. But here’s the catch – it’s still coming from the east, which is straight onshore for this break, and the wind is still on it. The potential is there, but the conditions are going to make it a mess. For the experts out there, this could be something, but for everyone else, it’s going to be a washing machine.
The wave heights stay solid into the following week, around 6 to 6 feet, but the period drops back down to 7-8 seconds. It’s still blown out with onshore winds. The energy readings stay in that strong range, but again, the quality just isn’t there.
Overall, this is a tough stretch. The best window on paper, around the 23rd and 24th, is going to be for experts only due to the size and the onshore wind. But even then, the quality is questionable. This spot is an inconsistent reef break, so you need the stars to align, and they are far from aligned here.
There are no good surf options in this 16-day window. It’s a blank run, and that’s just how it goes sometimes. The forecasts can change, but right now, it doesn’t look like it’s going to get good. The potential for a bigger, longer-period swell to light it up is there, but the wind direction is killing it. It’s a waiting game.
Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 26°C on Mon morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Thu night. Warm (max 27°C on Wed afternoon, min 25°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | E 12 | E 5 | E 6 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
152 | 129 | 168 | 118 | 82 | 69 | 65 | 49 | 57 | 64 | 83 | 142 | 237 | 569 | 708 | 732 | 499 | 418 | 418 | 418 | 377 | |
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 | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on |
High Tide | 3:48PM0.55m | 5:05AM0.65m | 4:00PM0.50m | 5:50AM0.63m | 4:02PM0.45m | 6:45AM0.61m | 3:21PM0.43m | 8:07AM0.58m | 9:59AM0.58m | 11:18AM0.61m | |||||||||||
Low Tide | 10:22AM0.27m | 10:11PM0.11m | 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 | ||||||||||
6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | |
mm | — | — | — | — | — | — | — | — | 2 | 2 | — | 3 | 2 | 3 | 11 | 7 | 2 | — | 2 | — | — |
Temp °C | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 27 | 25 |
Feels °C | 26 | 26 | 26 | 27 | 27 | 25 | 27 | 27 | 27 | 27 | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 27 | 26 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 8 | NE 7 | E 10 | E 10 | E 10 | SSW 19 | SSW 18 | SSW 17 | NNE 6 | NNE 6 | SSE 8 | SSE 8 | S 16 |
152 | 129 | 168 | 118 | 82 | 69 | 65 | 49 | 37 | 27 | 50 | 71 | 131 | 72 | 180 | 166 | 45 | 34 | 54 | 54 | 257 | |
Swell 2 Height (m) Direction Period (s) | NW 13 | E 9 | SSE 9 | SE 8 | SSE 8 | SSE 8 | E 13 | E 12 | E 11 | E 11 | NE 7 | NNE 8 | NNE 8 | SSW 16 | WNW 11 | WNW 10 | SSW 16 | SSW 16 | NNE 6 | S 18 | SSE 8 |
28 | 59 | 8 | 11 | 6 | 6 | 29 | 46 | 39 | 55 | 26 | 43 | 23 | 47 | 12 | 10 | 153 | 146 | 33 | 154 | 50 | |
Swell 3 Height (m) Direction Period (s) | SSW 15 | WNW 11 | WNW 12 | WNW 11 | WNW 11 | E 14 | SW 20 | SSW 20 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SSE 11 | SSE 10 | SSE 10 | S 21 | SSE 9 | SSW 15 | SSW 15 | SSW 13 |
21 | 11 | 14 | 12 | 12 | 16 | 99 | 75 | 95 | 80 | 79 | 76 | 64 | 11 | 10 | 10 | 35 | 29 | 87 | 91 | 17 | |
Wind waves Height (m) Direction Period (s) | E 9 | — | ESE 4 | E 4 | E 4 | E 5 | E 5 | ENE 5 | E 5 | E 6 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 |
79 | — | 6 | 14 | 19 | 28 | 32 | 45 | 57 | 64 | 83 | 142 | 237 | 569 | 708 | 732 | 499 | 418 | 418 | 418 | 377 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 22 | 22 | 24 | 25 | 22 | 31 | 35 | 24 | 24 | 35 | 23 | 35 | 35 | 24 | 41 | 121 | 24 | 36 | 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










