Surf Forecasts:
Wailua/Horners surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 2AM (local time) - 7ft (2.2m), 8s period, ENE swell with 526 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 8s and forecast to arrive on Saturday (Jul 25) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Saturday (Jul 18) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sat 25th Jul) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – the next couple of weeks are looking pretty grim for Wailua/Horners. We're staring down a long stretch of onshore winds and messy, short-period windswell that just isn't giving us anything worth paddling out for. The wind is pinned from the east-northeast pretty much solid, blowing right onto the exposed reef here, keeping things lumpy and blown-out. The energy readings through the first week are all in the weak to moderate range, and with a period of only 7 to 8 seconds, you're getting washed-out, bumpy waves that won't hold any shape.
Forget the next week, really. From Saturday the 18th of July right through to Saturday the 1st of August, the forecast is a total blank. Day after day of "poor surf conditions" is not what you want to hear. The only blip that even gets close to interesting is the morning of Sunday the 26th of July, and even then it's only rated as marginal. That morning we see a jump in period to 17 seconds with the swell from the east, and the combined energy rockets up – that's a proper groundswell pulse with some real power. But the wind is still howling onshore from the east-northeast at 12 mph, ruining any chance of it being clean. A long-period east swell on an exposed reef like this with onshore wind is just a recipe for a washing machine. You'd be fighting to get out, and the waves would be sectiony and closed out with that wind. Not for beginners, that's for sure – anything over 5 ft with that texture is no fun for learning.
That same pulse continues into Monday morning the 27th of July, with 5 ft at 16 seconds and energy even higher, but again, that annoying onshore breeze is the killer. It's a proper "should've been good" scenario. Honestly, the whole setup looks more interesting for the kite surfers than for anyone with a paddle. Don't hold your breath on any changes soon. The consistent onshore pattern just isn't giving us a window.
So, to sum it up: a dry, empty 16 days for Wailua/Horners. It's one of those runs where the forecasts can change, but right now, I'd be finding something else to do.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 26°C on Sat morning, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 26°C on Wed afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 6 | E 12 | E 7 | E 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 118 | 236 | 311 | 346 | 258 | 260 | 219 | 246 | 141 | 167 | 132 | 83 | 168 | 180 | 206 | 139 | 141 | 233 | 266 |
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 |
High Tide | 6:02AM0.44m | 6:00PM0.66m | 7:16AM0.46m | 6:18PM0.58m | 8:47AM0.49m | 6:26PM0.52m | 10:30AM0.54m | 11:48AM0.60m | 12:38PM0.64m | ||||||||||
Low Tide | 00:31AM0.20m | 11:17AM0.24m | 1:01AM0.19m | 12:07PM0.34m | 1:34AM0.18m | 1:20PM0.42m | 2:09AM0.17m | 2:53AM0.17m | 3:47AM0.16m | 4:46AM0.14m | |||||||||
 |  |  |  | | |  | | | |  | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:22 | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 2 | — | — | — | 2 |
Temp °C | 25 | 26 | 26 | 24 | 25 | 25 | 24 | 25 | 26 | 24 | 25 | 25 | 24 | 25 | 26 | 24 | 25 | 25 | 24 |
Feels °C | 26 | 26 | 25 | 24 | 24 | 24 | 23 | 25 | 26 | 24 | 25 | 25 | 24 | 24 | 26 | 23 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | NE 7 | S 14 | S 14 | E 8 | NNE 7 | NNE 8 | E 8 | E 8 | E 8 | ENE 7 | E 7 | S 14 | S 14 | S 14 | S 13 | S 13 | E 12 | S 13 | E 11 |
| kJ | 118 | 93 | 94 | 346 | 28 | 24 | 219 | 181 | 141 | 167 | 81 | 264 | 242 | 250 | 229 | 166 | 141 | 168 | 89 |
Swell 2 Height (m) Direction Period (s) | S 14 | WNW 13 | NNE 8 | SSE 9 | SSE 9 | S 13 | NNE 8 | NE 7 | S 16 | S 15 | S 15 | NE 7 | E 13 | E 12 | E 12 | E 11 | S 13 | E 12 | SSW 19 |
| kJ | 101 | 57 | 34 | 30 | 30 | 85 | 33 | 53 | 252 | 165 | 271 | 55 | 85 | 103 | 100 | 87 | 163 | 139 | 205 |
Swell 3 Height (m) Direction Period (s) | W 13 | SSE 9 | WNW 13 | NNE 8 | SSW 12 | S 19 | S 18 | S 16 | WNW 11 | S 12 | NE 7 | E 12 | SSW 26 | SSW 24 | SSW 24 | S 22 | S 20 | S 20 | S 13 |
| kJ | 89 | 8 | 57 | 23 | 48 | 64 | 155 | 137 | 13 | 74 | 54 | 25 | 132 | 187 | 186 | 238 | 214 | 196 | 85 |
Wind waves Height (m) Direction Period (s) | ESE 6 | E 7 | E 7 | — | E 8 | E 8 | — | ENE 8 | NNE 7 | — | ENE 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 6 | E 6 | E 7 | E 7 |
| kJ | 53 | 236 | 311 | — | 258 | 260 | — | 246 | 70 | — | 132 | 83 | 168 | 180 | 206 | 139 | 139 | 233 | 266 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 35 | 35 | 24 | 35 | 24 | 24 | 35 | 24 | 24 | 35 | 35 | 24 | 36 | 41 | 24 | 35 | 35 | 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.
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