
Surf Forecasts:
Wailua/Horners surf forecast from 12 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11PM (local time) - 6.5ft (2.0m), 10s period, E swell with 752 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 2.0m 10s and forecast to arrive on Thursday (Sep 17) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 18s period and expected on Thursday (Sep 17) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 17th Sep) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s see what we’ve got for this little stretch of coast over the next couple of weeks. Look, I’ll be straight with ya – it’s gonna be a long wait for any real surf. We’re looking at a pretty bleak run for the next week and a half, so if you’re itching to paddle out, you might wanna take up golf.
The first sign of anything half-decent doesn’t roll in until Wednesday the 23rd of September, and even then, it’s only just creeping up to "maybe worth a look." Before that, from now right through to Tuesday the 22nd, the wave comment is screaming "poor surf conditions" every single session. We’ve got weak onshore winds and tiny, short-period lumps that just aren’t doing anything. The energy is low – mostly two-digit or low three-digit numbers (238 at the start, dropping to 124 on Monday afternoon) – and the swell is sloppy. Don’t bother.
Now, that Wednesday the 23rd morning finally shows a pulse. At Wailua/Horners, we see a swell building to 7ft from the East with a period of 10 seconds. That’s a groundswell, but the water temp is sitting at 80°, right on average for September, so no surprises there. The wind is a gentle onshore breeze from the East at 9 mph, so it won’t be glassy, but at least it’s light. The combined energy jumps to a strong four-digit value (1002), which tells you there’s some grunt behind it. However, the wave comment is still "marginal" for that day, and this break is an exposed reef that’s inconsistent and often crowded. The 7ft East pulse is right on the cusp of too big for beginners, but for an advanced crew, it’s the standout of the whole forecast. The swell direction is from the East, and this spot needs a North swell to be at its best, so it won’t be perfect. Still, it’s the best we’ve got.
Thursday the 24th morning hangs in there with 6ft from the East, still a 10-second period, and lighter ENE winds at 9 mph. The energy is still strong at 736 – a solid session if you can get it. But by Thursday afternoon, it drops back to poor conditions.
After that, the second week fades again. Friday the 25th sees a drop to 6ft, and by Saturday the 26th the swell swings to a NNW direction with a longer 11-second period, but the wind picks up to 16 mph onshore and the thunderstorm risk is there. Energy is still high at 779 on Saturday morning, but that wind is going to chop it up. For a point break or a reef, that longer period might actually straighten it out, but with the onshore flow, it’s not looking appetizing. The whole period finishes with a similar story on Sunday the 27th – 4ft from the North at a long 12-second period, but winds still strong and storms threatening.
So, the one true standout is Wednesday the 23rd and Thursday the 24th of September. The biggest swell direction doesn’t match the break’s optimum, but the size and energy are real. If you’re advanced and you’ve got patience, that’s your window. Expect crowds – this spot is "often" packed. For everyone else, keep an eye on the forecast; things can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Tue night. Warm (max 27°C on Wed afternoon, min 24°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 10 | NE 9 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | E 11 | E 6 | E 7 | E 7 | ENE 8 | E 10 | E 9 | E 9 | E 9 |
Wave Graph | |||||||||||||||||||||
160 | 122 | 138 | 152 | 129 | 145 | 118 | 82 | 69 | 65 | 54 | 51 | 57 | 91 | 178 | 264 | 461 | 739 | 529 | 445 | 326 | |
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 | cross-on | on | on | on | on |
High Tide | 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 | 8:07AM0.58m | 9:59AM0.58m | ||||||||||
Low Tide | 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 | 11:58PM0.18m | 1:10AM0.21m | |||||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 4 | 1 | — | 6 | 3 | 1 | 2 | 1 | — | 2 |
Temp °C | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 26 |
Feels °C | 28 | 28 | 26 | 26 | 26 | 26 | 26 | 27 | 25 | 27 | 27 | 27 | 27 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | NE 9 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | NE 7 | NNE 8 | NNE 8 | E 7 | SSW 19 | E 10 | E 9 | E 9 | E 9 |
160 | 118 | 138 | 152 | 129 | 145 | 118 | 82 | 69 | 65 | 54 | 51 | 56 | 52 | 71 | 264 | 72 | 739 | 529 | 445 | 326 | |
Swell 2 Height (m) Direction Period (s) | NNE 8 | E 10 | E 9 | NW 13 | ENE 9 | WNW 12 | SE 8 | SE 8 | SSE 8 | E 13 | E 12 | E 11 | E 11 | E 10 | SW 17 | NNE 8 | SW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
78 | 122 | 83 | 28 | 27 | 14 | 11 | 10 | 6 | 29 | 46 | 39 | 55 | 49 | 76 | 69 | 64 | 180 | 166 | 153 | 146 | |
Swell 3 Height (m) Direction Period (s) | SE 6 | SSE 6 | SSE 5 | SSW 15 | SSW 15 | SSE 9 | WNW 11 | WNW 11 | E 14 | SW 20 | SSW 20 | SW 19 | SW 18 | SW 18 | WNW 10 | E 10 | SSE 11 | SSE 10 | NW 10 | NW 9 | NNE 7 |
9 | 6 | 3 | 21 | 21 | 8 | 12 | 12 | 16 | 99 | 75 | 95 | 80 | 79 | 10 | 72 | 11 | 10 | 16 | 14 | 30 | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 9 | E 5 | E 5 | E 4 | E 5 | E 5 | E 5 | ENE 5 | E 6 | E 6 | E 6 | E 7 | — | ENE 8 | — | — | — | — |
— | — | — | 59 | 16 | 15 | 13 | 30 | 24 | 33 | 33 | 50 | 57 | 91 | 178 | — | 461 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 22 | 22 | 23 | 22 | 24 | 25 | 35 | 24 | 25 | 35 | 24 | 24 | 35 | 24 | 35 | 35 | 24 | 24 | 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










