Surf Forecasts:
Kailua Beach surf forecast from 5 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 8PM (local time) - 4.5ft (1.4m), 11s period, ENE swell with 436 kJ wave energy.
Best Forecast Surf Conditions for Kailua Beach this week:
The most powerful waves expected at Kailua Beach in the next 16 days are 1.4m 11s and forecast to arrive on Tuesday (Aug 04) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 16s period and expected on Sunday (Aug 09) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Tue 4th Aug) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Right, listen up. It’s Rusty here, and I’ve been staring at the charts for Kailua Beach. And, well, it’s grim. There’s just nothing on the table for the next two and a half weeks. Not a single decent wave in the whole 16-day window. The score is zero across the board. I’ve never seen a run this blank.
The water temp is sitting at 80°, which is pretty much spot on for this time of year, so no surprises there. But that’s where the good news ends.
We’re looking at a long, flat spell. On Tuesday the 4th, there’s a tiny bit of swell, about 5ft, but it’s coming from the ENE, which is the complete opposite of what this break wants (NE). The wind is also on it from the ENE, so it’s just messy. The energy is weak, only 436. It’s not worth paddling out for. The conditions are just poor, plain and simple.
This same story pretty much repeats day after day. The swell stays small, around 3ft to 4ft, with periods that are short and weak. The wind stays onshore or cross-onshore, making everything choppy and lumpy. It’s going to be a frustrating week.
Heading into the second week, the swell does start to pick up. From the 14th of August, we see it climbing. By the 16th, we’re looking at 7ft to 8ft, and the energy is getting stronger. But it’s still from the ENE, the wind is still from the ENE, and it’s still just going to be a big, blown-out mess. That’s not surf, that’s just a washing machine.
Then it gets bigger. On the 17th and 18th of August, the model is showing 10ft of swell, with some serious energy behind it. But again, the direction is all wrong. And with the ENE wind holding strong, this isn’t going to be a clean, powerful groundswell. It’s just going to be a lot of water moving in the wrong direction. The size would be too much for beginners, and even for experts, the conditions are going to be awful. The setup looks more interesting for kite surfing than paddle surfing to be honest. Then it backs down slightly by the 19th, but it’s still not any good.
So, bottom line: if you want to get wet in the next couple of weeks, you’re better off finding a pool. This is a truly blank run for Kailua Beach. Even the fairly consistent nature of this spot can’t save it from this forecast. Sometimes it stays flat, and this is one of those times. Forecasts can change, but as it stands, there’s nothing to get excited about.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Warm (max 25°C on Tue afternoon, min 24°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 25°C on Fri afternoon, min 25°C on Fri afternoon). Mainly fresh winds. | |||||||||||||||||||
Tue 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 11 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 6 | ENE 8 | ENE 8 | ENE 5 | ENE 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 436 | 358 | 253 | 188 | 88 | 74 | 142 | 128 | 60 | 87 | 154 | 200 | 240 | 397 | 340 | 340 | 382 | 300 | 273 | 284 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 5:12PM0.63m | 8:35AM0.61m | 5:05PM0.58m | 10:38AM0.68m | 11:52AM0.77m | 12:41PM0.84m | 9:57PM0.40m | 1:22PM0.90m | 11:49PM0.42m | 1:59PM0.94m | 00:53AM0.47m | |||||||||
Low Tide | 00:39AM0.17m | 1:20PM0.54m | 1:33AM0.15m | 2:46AM0.13m | 4:07AM0.10m | 8:55PM0.40m | 5:18AM0.06m | 8:36PM0.37m | 6:16AM0.03m | 8:52PM0.34m | ||||||||||
 |  | | | |  | |  |  | | | | | | |  |  |  | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — |
mm | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | NNW 8 | NNW 7 | ENE 7 | NNW 7 | NE 11 | NE 10 | SSW 14 | SSW 13 | SSW 13 | S 18 | S 16 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 436 | 358 | 253 | 188 | 88 | 59 | 12 | 10 | 21 | 9 | 41 | 17 | 19 | 17 | 17 | 24 | 20 | 50 | 45 | 45 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | S 13 | NNE 9 | NNE 8 | S 12 | NNW 8 | S 11 | SSE 11 | NE 10 | NE 12 | N 7 | SSW 14 | N 6 | SSW 18 | SSE 10 | SSW 12 | N 10 | N 9 | N 8 | SSE 9 |
| kJ | 13 | 14 | 8 | 7 | 11 | 13 | 10 | 12 | 14 | 23 | 4 | 20 | 3 | 30 | 10 | 15 | 8 | 6 | 5 | 8 |
Swell 3 Height (m) Direction Period (s) | S 13 | NNE 9 | S 13 | S 12 | NNE 8 | S 12 | SW 14 | ENE 10 | NNW 7 | S 11 | SW 14 | N 6 | SSW 18 | S 10 | S 18 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | N 8 |
| kJ | 13 | 8 | 13 | 12 | 6 | 10 | 8 | 11 | 10 | 9 | 8 | 3 | 31 | 8 | 24 | 9 | 9 | 9 | 9 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 5 | ENE 6 | ENE 8 | ENE 8 | ENE 5 | ENE 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 7 |
| kJ | — | — | — | — | 36 | 74 | 142 | 128 | 60 | 87 | 154 | 200 | 240 | 397 | 340 | 340 | 382 | 300 | 273 | 284 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 16 | 17 | 41 | 18 | 17 | 41 | 41 | 17 | 46 | 46 | 46 | 41 | 41 | 41 | 41 | 41 | 41 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kailua Beach Surf forecast
The above surf forecast table for Kailua Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kailua Beach can be found by selecting the local surf guide option on the grey menu. Our Kailua Beach 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 (Kailua Beach) 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 Kailua Beach 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.
Kailua Beach is 0 km (0 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.
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