Surf Forecasts:
Wailua/Horners surf forecast from 27 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 5AM (local time) - 6.5ft (2.0m), 8s period, ENE swell with 547 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 8s and forecast to arrive on Tuesday (Sep 01) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Sunday (Aug 30) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Tue 1st Sep) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Wailua/Horners over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s cookin’ for Wailua/Horners.
Look, I’ve gotta be straight with you – this is a tough stretch. The finder is telling me there’s just one spot on the menu, and it’s a reef break that’s inconsistent, so it’s not exactly firing on all cylinders. We’ve got a full 16-day window, but the whole thing is a bit of a flat spell. The water is at 81°, which is about normal for this time of year, so no nasty surprises there.
The first real chance to even think about paddling out is Wednesday morning, August 26th, but don’t get your hopes up. We’re looking at a small, weak 4 ft swell from the east with a short period of 8 seconds. The wind is onshore from the ENE at 15 mph, so it’s bumpy. The combined energy is only 187 (moderate), and the wave comment says it’s poor. Not a good look.
This same story basically repeats itself day after day through the end of August. The swell stays small, between 4 ft and 6 ft, mostly from the east, with short periods of 6 to 8 seconds. The wind is onshore, 12-15 mph, and the energy climbs a bit, reaching 399 (moderate) on Saturday the 29th. But it’s still poor.
As we roll into September, things get a little more interesting in terms of size, but not quality. On Tuesday, September 1st, we see the swell bump up to 6 ft from the ENE with a period of 9 seconds, and the energy jumps to 524 (strong). That’s a bit of grunt, but the wind is still onshore (E, 12 mph), and the wave comment is still “poor surf conditions.” For a reef break like this, a 6 ft swell with onshore wind is just messy.
The first week of September is a wash. The swell stays between 5 ft and 5 ft, with periods up to 11 seconds on the 5th. That longer period (11 seconds) is a groundswell, which could give better shape, but the wind is still onshore or cross-onshore, and the energy is strong (hitting 622 on the 3rd). Despite the energy, the poor surf quality tag sticks with us.
Things get worse on the 6th of September. The wind shifts to cross-onshore from the ESE at 9-12 mph, making it “gentle cross-onshore and fairly choppy.” The swell is 5-5 ft, and it’s just not worth it.
The last few days of the outlook, from the 8th to the 10th, the swell drops back down to 3 ft to 4 ft. The wind is still onshore, and the energy is weak to moderate. There’s a 4 ft swell from the NNE with a 10-second period on the 10th, but with onshore wind, it’s a non-starter.
So, what’s the best of a bad lot? Honestly, there isn’t a standout. The closest thing to a “maybe” is Wednesday, September 3rd, with a 5 ft swell from the east, an 8-second period, and a strong energy reading of 622, but the wind is still onshore (ENE, 9 mph). It’s not clean, it’s not good. For a crowd that’s often there, this is a hard pass. This is a reef break, and with the onshore winds, it’s going to be a washing machine, not a wave.
The gap of poor surf is basically the entire 16 days. There’s no real window to get excited about. With the wind being onshore or cross-onshore for the entire run, and the swell quality being consistently poor, I’d say this is a time to take a break, check the forecasts again in a few days, and hope for a change. It’s a blank run, and for this area, that’s a bit of a bummer, but it happens.
Stay salty,
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Warm (max 27°C on Wed afternoon, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Sun night. Warm (max 27°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | E 6 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 7 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph | |||||||||||||||||||||
187 | 178 | 153 | 149 | 123 | 123 | 136 | 128 | 187 | 233 | 274 | 327 | 330 | 278 | 240 | 235 | 336 | 534 | 524 | 475 | 541 | |
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 | on | on |
High Tide | 2:41PM0.75m | 2:19AM0.46m | 3:03PM0.74m | 2:57AM0.51m | 3:25PM0.71m | 3:36AM0.55m | 3:45PM0.67m | 4:18AM0.58m | 4:05PM0.62m | 5:05AM0.60m | 4:22PM0.57m | 5:59AM0.61m | 4:35PM0.51m | ||||||||
Low Tide | 9:16PM0.23m | 8:10AM0.10m | 9:33PM0.20m | 8:46AM0.13m | 9:51PM0.17m | 9:24AM0.17m | 10:11PM0.15m | 10:05AM0.23m | 10:33PM0.12m | 10:50AM0.30m | 10:59PM0.11m | 11:46AM0.37m | 11:31PM0.10m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | |
— | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | |
mm | — | — | — | — | — | — | — | — | 3 | 1 | — | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 2 | 1 | 4 |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 27 | 25 | 27 | 27 | 26 |
Feels °C | 26 | 27 | 25 | 25 | 25 | 25 | 26 | 26 | 24 | 25 | 24 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 14 | E 7 | S 19 | S 17 | E 7 | S 16 | S 15 | E 7 | S 14 | S 13 | S 13 | S 12 | S 12 | ENE 7 | S 12 | NE 7 | S 11 | ENE 8 | ENE 9 | ENE 9 | S 18 |
106 | 178 | 458 | 470 | 123 | 387 | 275 | 128 | 246 | 167 | 165 | 109 | 69 | 278 | 66 | 235 | 58 | 534 | 524 | 475 | 222 | |
Swell 2 Height (m) Direction Period (s) | S 18 | S 18 | SSW 13 | SSW 12 | S 17 | NNE 7 | N 6 | S 14 | E 14 | E 13 | E 13 | E 12 | E 12 | S 12 | ENE 11 | S 11 | E 10 | S 10 | S 18 | S 18 | S 10 |
105 | 224 | 57 | 47 | 470 | 16 | 20 | 257 | 102 | 126 | 125 | 104 | 71 | 100 | 39 | 59 | 48 | 54 | 167 | 232 | 51 | |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSW 13 | NW 10 | NW 9 | SSW 12 | NW 8 | E 16 | E 15 | NNE 6 | NW 8 | SSW 18 | SSW 17 | SSW 16 | E 11 | SSW 15 | E 10 | SSW 14 | S 19 | S 10 | S 9 | E 15 |
27 | 56 | 33 | 21 | 48 | 11 | 79 | 107 | 13 | 3 | 30 | 29 | 51 | 63 | 44 | 31 | 41 | 192 | 48 | 45 | 17 | |
Wind waves Height (m) Direction Period (s) | E 8 | — | E 7 | E 7 | — | E 7 | E 6 | NNE 7 | E 6 | E 7 | E 7 | ENE 7 | ENE 7 | — | ENE 7 | ESE 7 | ENE 8 | — | — | — | ENE 8 |
187 | — | 153 | 149 | — | 123 | 136 | 26 | 187 | 233 | 274 | 327 | 330 | — | 240 | 83 | 336 | — | — | — | 541 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 36 | 125 | 41 | 36 | 35 | 24 | 35 | 24 | 24 | 35 | 35 | 22 |
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.
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