
Surf Forecasts:
Wailua/Horners surf forecast from 12 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 5PM (local time) - 16ft (5.0m), 11s period, E swell with 5,500 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 5.0m 11s and forecast to arrive on Sunday (Aug 16) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 16s period and expected on Thursday (Aug 13) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sun 16th Aug) | 16ft (5.0m) 11s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
Straight up, I’ll be honest with you – this is a tough stretch. We’re looking at a long, dry run with hardly anything worth paddling out for. The first real chance of a wave doesn’t show up until the 24th of August, and even then, it’s a gamble. Before that, it’s all onshore wind and messy, weak swell.
The only spot in the game is Wailua/Horners (Hawaii) , a reef break that’s best for advanced crew. It’s inconsistent and can get crowded, so if you’re thinking of heading out, expect company. The water temp is about average for this time of year, nothing unusual.
So, from now until the 23rd, it’s pretty much a write-off. The wind is hammering from the ENE and NE, mostly onshore, and the swell is small and short-period. The energy is weak to moderate, with values like 177 to 191 (low energy), and it never tops a score of zero. The swell direction is mostly from the E to ENE, with a period of 6 to 8 seconds—that’s short-period, wind swell stuff. It’ll be choppy and bumpy, not worth your time.
Now, here’s the little glimmer. On Monday afternoon, 24th August, things shift. We get a glassy wind state with a light breeze from the south, and the swell from the east at 0.9m, which is about 3 ft, with a period of 9 seconds. The combined energy bumps up to 162 (moderate). The forecast says “surfable waves but very ordinary conditions,” and it scores a 1. That’s the best we’ve got. It’s not pumping, but it’s the only window where the ocean might be rideable. The period is still short, so don’t expect much power, but at least it’s glassy.
After that, the 25th and 26th slip back into onshore wind and low energy, with the swell dropping to 1.0m (3 ft) and periods of 8 to 9 seconds, but the wind is back onshore. The 27th shows a bit more energy (330) and a 1.6m (5 ft) swell from the east with an 8-second period, but the onshore wind from the ENE at 20 km/h (12 mph) will ruin it.
So, the standout? That glassy window on the 24th of August. It’s the only one. If you’re desperate, that’s your moment. Otherwise, it’s a long wait for something better.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu morning, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 52mm), heaviest during Sun morning. Warm (max 27°C on Mon morning, min 25°C on Fri night). Winds decreasing (strong winds from the ENE on Sun morning, light winds from the ESE by Sun night). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | E 7 | E 7 | E 7 | E 6 | E 7 | ENE 7 | E 7 | E 8 | E 8 | E 8 | E 12 | E 11 | E 11 | E 10 | E 11 | E 9 | E 8 | E 8 | E 7 |
Wave Graph | |||||||||||||||||||
155 | 177 | 163 | 161 | 173 | 175 | 247 | 377 | 418 | 691 | 1857 | 1708 | 1873 | 1493 | 5500 | 1904 | 962 | 609 | 349 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | on | on |
High Tide | 2:21AM0.43m | 3:26PM0.83m | 3:09AM0.47m | 3:55PM0.78m | 3:57AM0.51m | 4:21PM0.72m | 4:45AM0.53m | 4:42PM0.65m | 5:35AM0.55m | 4:58PM0.58m | 6:31AM0.55m | 5:06PM0.52m | |||||||
Low Tide | 9:42PM0.23m | 8:15AM0.03m | 10:06PM0.21m | 8:59AM0.07m | 10:30PM0.18m | 9:42AM0.14m | 10:54PM0.17m | 10:24AM0.21m | 11:18PM0.15m | 11:07AM0.30m | 11:42PM0.15m | 11:57AM0.37m | 00:07AM0.16m | ||||||
— | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | |
7:10 | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 8 | 22 | 6 | 10 | 2 | — | 1 |
Temp °C | 25 | 26 | 26 | 25 | 27 | 27 | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 25 |
Feels °C | 26 | 27 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 25 | 26 | 22 | 25 | 26 | 29 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | E 7 | S 18 | S 18 | S 16 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 14 | S 16 | S 13 | S 14 | S 12 | S 14 |
155 | 416 | 620 | 755 | 728 | 582 | 524 | 422 | 411 | 324 | 225 | 171 | 167 | 140 | 127 | 165 | 202 | 102 | 246 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | SE 9 | NNW 8 | SE 9 | SE 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | S 18 | S 17 | S 13 | S 16 | WNW 11 | S 15 | WNW 11 |
181 | 168 | 163 | 13 | 6 | 13 | 13 | 6 | 12 | 13 | 12 | 12 | 98 | 147 | 80 | 125 | 24 | 104 | 24 | |
Swell 3 Height (m) Direction Period (s) | S 20 | SE 9 | WNW 12 | W 12 | W 12 | NNW 7 | W 12 | W 12 | W 11 | W 11 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | SSE 10 | WNW 11 | SSE 11 |
268 | 19 | 28 | 25 | 25 | 5 | 11 | 11 | 22 | 21 | 33 | 34 | 49 | 48 | 42 | 24 | 21 | 23 | 12 | |
Wind waves Height (m) Direction Period (s) | — | E 7 | E 7 | E 6 | E 7 | ENE 7 | E 7 | E 8 | E 8 | E 8 | E 12 | E 11 | E 11 | E 10 | E 11 | E 9 | E 8 | E 8 | E 7 |
— | 177 | 163 | 161 | 173 | 175 | 247 | 377 | 418 | 691 | 1857 | 1708 | 1873 | 1493 | 5500 | 1904 | 962 | 609 | 349 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 35 | 24 | 25 | 24 | 35 | 24 | 35 | 35 | 35 | 35 | 35 | 35 | 326 | 136 | 129 | 23 | 36 | 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











