
Surf Forecasts:
Kealia surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 2AM (local time) - 5ft (1.5m), 11s period, ENE swell with 476 kJ wave energy.
Best Forecast Surf Conditions for Kealia this week:
The most powerful waves expected at Kealia in the next 16 days are 1.5m 11s and forecast to arrive on Wednesday (Aug 05) 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 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 | 2AM (Wed 5th Aug) | 5ft (1.5m) 11s |
Table - best surf conditions forecast for Kealia over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a full 16-day window ahead, but I gotta be straight with you – it’s a tough one. The forecast is basically a long stretch of onshore wind and messy conditions. There’s no standout clean window in the near future, so we’re looking at a proper grind for the next week and a half.
The first recommendation on the board is Kealia (beach and reef). It’s a fairly consistent spot, but crowds are likely here. The water temp is sitting at 80°F, which is about average for the time of year, so nothing weird going on there.
We kick off on Tuesday, 4 August, with a cloudy afternoon and a 5ft swell from the ENE, but the wind is onshore from the same direction at 9 mph. The combined energy is moderate at 494. The swell period is 11 seconds, which is a decent long-period groundswell, but with the wind howling straight into it, it’s gonna be a mess. The comment says “poor surf conditions,” and I’m not gonna argue with that.
Wednesday the 5th and Thursday the 6th aren’t any better. Onshore wind stays in the 9–12 mph range, swell drops a bit to 4–5ft, period drops to 8–10 seconds, and energy falls off to 186–356. Still all “poor surf conditions.” The wind is blowing onshore the whole time, so forget about any clean faces.
Friday the 7th is a bit weaker, with only 3ft swell and a short period of 6 seconds. Energy is down to 95 – that’s weak. It’s all just messy, small, and onshore. Not worth paddling out for.
Saturday the 8th and Sunday the 9th see a little bump in size to 5–6ft, but the period is still short (6–7 seconds) and the wind is onshore at 12–16 mph. Energy climbs back into the moderate range (210–358), but with that wind, it’s just lumpy and choppy. Still “poor surf conditions.”
The whole first week is a write-off. The wind never swings offshore, and the swell direction is always ENE or E – the same direction the wind is coming from. That’s a recipe for blown-out, bumpy waves.
Heading into the second week, things get bigger but not better. From Monday 10 August through to Wednesday 19 August, the swell builds from 4ft up to a solid 10ft, and the energy jumps into the strong range, hitting 1022–1575 by the 17th and 18th. But the wind stays locked in onshore from the ENE or E at 12–19 mph. The period slowly improves to 9 seconds by the 16th, but it’s still not enough to overcome the wind.
By the 18th of August, we’re looking at a 10ft swell from the ENE with a 9-second period, and energy is peaking at 1575. That’s a lot of water moving, but with 16 mph onshore wind, it’s going to be a washing machine. This is expert-only territory size-wise, and even then, the conditions are going to be full-on ugly. The setup here is a beach and reef, so with that much wind and swell, this looks more interesting for kite surfing than paddle surfing.
The final days on the 19th still show 8ft dropping to 6ft, but the wind is still onshore. There’s no clean window in the entire 16 days. The forecast is brutally consistent with the onshore flow, and the optimum swell direction for Kealia is NE, but the wind is coming from the same quarter, so it’s all junk.
Honestly, there’s nothing to get excited about here. It’s a rare blank run, and for this area, that’s a bit of a downer. Keep an eye on the forecasts, because it tends not to stay this poor for long, but for now, I’d leave the board in the car and go grab a coffee.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat morning. Warm (max 26°C on Sat afternoon, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 11 | ENE 10 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | E 8 | ENE 7 | E 5 | ENE 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 7 |
Wave Graph | |||||||||||||||||||
476 | 356 | 341 | 238 | 176 | 144 | 121 | 117 | 45 | 80 | 176 | 168 | 271 | 306 | 311 | 337 | 294 | 253 | 215 | |
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 | 9:10AM0.57m | 5:32PM0.47m | 10:52AM0.63m | 12:03PM0.70m | 12:56PM0.77m | 10:59PM0.32m | 1:40PM0.82m | 00:28AM0.35m | 2:19PM0.85m | 1:29AM0.39m | |||||||||
Low Tide | 1:10AM0.13m | 2:57PM0.46m | 2:01AM0.12m | 3:11AM0.11m | 4:29AM0.08m | 8:54PM0.31m | 5:38AM0.05m | 9:00PM0.28m | 6:37AM0.02m | 9:19PM0.25m | |||||||||
— | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:15 | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | |
mm | 3 | 2 | — | — | — | — | 1 | — | — | — | 2 | — | 1 | — | 1 | — | — | — | — |
Temp °C | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 |
Feels °C | 26 | 26 | 28 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 24 | 25 | 26 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 10 | ENE 10 | S 12 | NNW 8 | ENE 8 | NNW 7 | NNW 7 | ENE 7 | N 7 | NE 10 | NE 10 | NE 9 | SSW 17 | SSW 17 | S 16 | S 16 | S 15 | E 7 |
476 | 356 | 341 | 46 | 20 | 144 | 17 | 9 | 38 | 8 | 28 | 35 | 30 | 97 | 100 | 129 | 129 | 115 | 215 | |
Swell 2 Height (m) Direction Period (s) | S 13 | SSE 13 | SSE 12 | SSW 10 | S 11 | NNW 8 | S 11 | SE 7 | SSW 16 | NE 9 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSE 10 | SE 10 | SSE 10 | SE 8 | S 15 |
55 | 58 | 50 | 18 | 40 | 19 | 21 | 14 | 51 | 14 | 41 | 40 | 35 | 34 | 19 | 24 | 35 | 17 | 170 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 11 | NNW 8 | SSE 7 | SSE 11 | SSE 7 | S 11 | N 7 | S 11 | S 12 | SE 8 | S 10 | SSE 10 | SSW 13 | SSW 12 | NNW 9 | SSE 10 | SSE 9 |
23 | 22 | 22 | 7 | 5 | 25 | 5 | 20 | 8 | 21 | 24 | 10 | 17 | 19 | 33 | 29 | 15 | 19 | 54 | |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 9 | ENE 8 | — | E 8 | ENE 7 | E 5 | ENE 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | — |
— | — | — | 238 | 176 | — | 121 | 117 | 45 | 80 | 176 | 168 | 271 | 306 | 311 | 337 | 294 | 253 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 40 | 24 | 30 | 40 | 40 | 24 | 40 | 40 | 24 | 41 | 40 | 30 | 40 | 30 | 30 | 40 | 40 | 24 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Kealia Surf forecast
The above surf forecast table for Kealia provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kealia can be found by selecting the local surf guide option on the grey menu. Our Kealia 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 (Kealia) 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 Kealia 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 Kealia, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 14 km (9 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 15 km (9 miles) away











