
Surf Forecasts:
Wailua/Horners surf forecast from 4 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 11AM (local time) - 5ft (1.6m), 12s period, ENE swell with 636 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 1.6m 12s and forecast to arrive on Tuesday (Aug 04) 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 0.6m 15s period and expected on Tuesday (Aug 11) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 4th Aug) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve got to be straight with you. The next 16 days at Wailua/Horners on Kauai are looking pretty grim. The forecast is solidly filled with “poor surf conditions” right the way through. There isn’t a single standout session on offer, and that’s a tough pill to swallow for a spot that can be magic.
We start off right now, on Tuesday the 4th of August, with a messy, cross/onshore ENE breeze at 9 mph and a stormy feel. The swell is coming in at 5 ft from the ENE with a decent 12-second period, but don’t get excited. The combined energy is moderate at 636, but that wind is just wrecking any chance of a clean face. It looks more like a kite-surfing setup than a paddle session. That same story rolls through the week. Wednesday the 5th, we’re still seeing onshore ENE winds, dropping to 4 ft at 10 seconds, energy down to 342. Thursday the 6th is a bit smaller at 4 ft, and it’s all just sloppy.
There’s a real gap of quality here. From now right through to at least Sunday the 10th of August, every single report is “poor surf conditions.” The wind is relentlessly onshore from the ENE or E, mostly 9 to 16 mph. The swell height bounces around between 3 ft and 6 ft with short periods mostly under 8 seconds. That’s windswell, not groundswell. It’s weak and choppy.
Now, looking deeper into the second week, it actually gets bigger, but the quality doesn’t improve. On Friday the 14th of August, we see an increase to 6 ft from the E, and then on Saturday the 15th it hits 8 ft from the ENE. The combined energy jumps into the strong range, hitting 1032 that Saturday morning. But mate, that ENE wind is still howling at 16 mph onshore. That kind of power with that wind? It’s going to be a washing machine. For the experienced crew, it’s heavy and challenging, but it won’t be a pretty wave. That pushes right through to Monday the 17th of August, where we see the biggest reading of the whole window: 8 ft from the ENE at 9 seconds, with a very strong combined energy of 1331. That’s expert-only territory, and with the onshore wind, it’s a beast.
Even a brief change on Thursday the 13th of August afternoon, where a small 2 ft WNW swell with a very long 17-second period shows up, is still labelled “poor surf conditions” because the wind is still onshore. That long period groundswell would be a dream at a point break, but here at a reef exposed to the northeast? The wind kills it.
So here’s the bottom line: there are no days I can honestly tell you to paddle out with a smile. It’s a blank run for a spot that is ‘inconsistent’ at the best of times. At least the water temp is running about average for the time of year. Don’t get too down, though – these forecasts can shift, and this stretch of poor conditions tends not to stay locked in forever.
Stay tuned, I’ll be watching it.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Warm (max 26°C on Tue morning, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Warm (max 26°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | ENE 7 | E 8 |
Wave Graph | |||||||||||||||||||
306 | 636 | 561 | 541 | 342 | 295 | 213 | 185 | 144 | 105 | 45 | 62 | 94 | 182 | 199 | 247 | 311 | 327 | 371 | |
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 | 7:32AM0.53m | 5:44PM0.53m | 9:10AM0.57m | 5:32PM0.47m | 10:52AM0.63m | 12:03PM0.70m | 12:56PM0.77m | 10:59PM0.32m | 1:40PM0.82m | 00:28AM0.35m | |||||||||
Low Tide | 00:31AM0.15m | 12:35PM0.40m | 1:10AM0.13m | 2:57PM0.46m | 2:01AM0.12m | 3:11AM0.11m | 4:29AM0.08m | 8:54PM0.31m | 5:38AM0.05m | 9:00PM0.28m | |||||||||
— | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | |
mm | — | 1 | 2 | 3 | 2 | — | — | 1 | — | 2 | — | — | 1 | 1 | — | 2 | 2 | — | 2 |
Temp °C | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 26 | 28 | 26 | 27 | 26 | 26 | 26 | 27 | 26 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 12 | ENE 11 | S 13 | ENE 10 | ENE 10 | S 12 | NNW 8 | NNW 8 | NNW 7 | ENE 8 | N 7 | NE 9 | NE 10 | NE 10 | NE 9 | SSW 17 | SSW 17 | S 16 |
306 | 636 | 561 | 55 | 342 | 295 | 46 | 20 | 19 | 17 | 37 | 8 | 14 | 28 | 35 | 31 | 97 | 100 | 129 | |
Swell 2 Height (m) Direction Period (s) | E 12 | SSE 14 | SSW 12 | SSW 11 | SSE 13 | SSE 12 | SSW 10 | SSE 11 | SSE 11 | SSE 11 | NNW 7 | SSW 16 | N 7 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SE 10 |
104 | 41 | 27 | 23 | 58 | 50 | 18 | 43 | 25 | 24 | 9 | 51 | 8 | 70 | 40 | 35 | 34 | 32 | 23 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSE 9 | W 13 | SSW 11 | SSW 11 | NNW 8 | SSW 9 | S 18 | S 17 | S 11 | S 11 | S 11 | S 10 | SE 8 | SE 8 | SSE 10 | W 11 | SSW 12 |
28 | 28 | 7 | 13 | 22 | 22 | 7 | 8 | 25 | 22 | 20 | 21 | 21 | 18 | 17 | 18 | 19 | 21 | 29 | |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 11 | — | — | ENE 9 | ENE 8 | ENE 8 | ENE 8 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | ENE 7 | E 8 |
— | — | — | 541 | — | — | 213 | 185 | 144 | 105 | 45 | 62 | 94 | 182 | 199 | 247 | 311 | 327 | 371 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 35 | 35 | 24 | 35 | 25 | 22 | 24 | 25 | 24 | 35 | 35 | 24 | 36 | 24 | 36 | 35 | 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











