
Surf Forecasts:
Kailua Beach surf forecast from 22 Jul 2026:
- Most powerful swell: Tuesday 28 Jul, 2AM (local time) - 7ft (2.2m), 13s period, ENE swell with 1,700 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 2.2m 13s and forecast to arrive on Tuesday (Jul 28) 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 0.4m 13s period and expected on Wednesday (Jul 22) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Tue 28th Jul) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Gotta be straight with you – looking at Kailua Beach over the next 16 days, and it ain't the finest picture for paddle surfing. The forecast is a long stretch of challenging onshore winds and lumpy, less-than-ideal conditions. We do have some energy building up in the second week, but the wind and swell quality will be the main issues.
Right now, and for most of the upcoming period, we’re stuck in a trade wind pattern. Wind is coming hard from the ENE, mostly onshore and cross-onshore at 18-22 mph, gusting up to 25 mph. That’s going to keep the surface choppy and messy. The water temp is sitting at a normal 80° for this time of year, so a wetsuit is off the cards.
Let's walk through it. Wednesday the 22nd through to Friday the 24th of July is a write-off. We’ve got swell around 6 ft to 7 ft, but it's short-period windswell at 7 seconds, with that strong ENE wind ruining any hope of a clean face. It’s just lumpy and poor.
The first bit of promise, and I stress *promise*, arrives on the morning of Monday, 28th July. It's still not perfect, as the wave comment is "marginal surf forecast", earning it a 1 out of 10 internally. Here the swell drops a touch to 5 ft from the east with a longer 12-second period, and the wind eases to a more manageable 9 mph from the NE. It’s still onshore, but glassier, making the surface a little cleaner. The combined swell energy is strong, reading 712. Still, with that onshore wind, you’d be scratching for a decent one.
The next notable moment, and this is far out so take it easy, is around Wednesday the 5th of August. This one gets the highest internal call of the whole run, a 2 out of 10. The swell is building – around 8 ft from the ENE with a solid 13-second period. Combined wave energy is very strong at 1901. That’s a proper groundswell. The wind is light at 9 mph from the east, but it is *cross-onshore*. The break here is a point, which can handle a longer period swell, but that wind direction isn't ideal. This is more of a "keep an eye on it" situation. That swell size is over 8 ft by Thursday the 6th of August (10 ft from the NE), which is expert territory.
Frankly, for the next two weeks, nothing here is screaming greatness. The consistent onshore flow and poor quality wave comments are the story. A bit of a blank run on quality surf. It’s a setup that looks a lot more interesting for the kiteboarders than someone on a longboard or shortboard. The conditions can flip, but right now, Kailua is not showing its best side.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 25°C on Wed morning, min 24°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 7 | ENE 7 | E 12 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 14 | E 14 | E 14 | ENE 13 | E 13 | E 13 | E 12 |
Wave Graph | |||||||||||||||||||||
240 | 189 | 142 | 349 | 307 | 322 | 394 | 397 | 469 | 441 | 502 | 441 | 468 | 429 | 585 | 649 | 604 | 1700 | 971 | 839 | 1062 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on |
High Tide | 11:42AM0.65m | 12:30PM0.71m | 1:05PM0.75m | 1:36PM0.79m | 11:19PM0.41m | 2:05PM0.83m | 00:19AM0.43m | 2:32PM0.85m | 1:04AM0.45m | 2:58PM0.86m | 1:44AM0.47m | ||||||||||
Low Tide | 3:25AM0.19m | 4:27AM0.17m | 5:23AM0.14m | 9:11PM0.40m | 6:10AM0.11m | 9:11PM0.38m | 6:50AM0.08m | 9:23PM0.37m | 7:26AM0.06m | 9:40PM0.35m | |||||||||||
6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | |
mm | 2 | — | — | 1 | — | — | 1 | — | — | — | — | 3 | 1 | — | 1 | 1 | — | — | — | — | 3 |
Temp °C | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 |
Feels °C | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 22 | 21 | 23 | 22 | 24 | 22 | 22 | 23 | 22 | 23 | 23 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | S 12 | S 13 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | E 14 | SSW 19 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | NNE 10 | E 13 | E 13 | E 12 |
103 | 93 | 139 | 44 | 55 | 66 | 104 | 59 | 52 | 62 | 115 | 124 | 343 | 418 | 585 | 649 | 604 | 61 | 971 | 839 | 1062 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | SSE 13 | S 13 | SSW 20 | SSW 20 | S 13 | S 12 | S 12 | S 12 | SSW 19 | E 13 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | NE 10 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 14 |
59 | 58 | 52 | 77 | 75 | 31 | 46 | 25 | 25 | 125 | 55 | 103 | 90 | 85 | 83 | 27 | 42 | 41 | 36 | 36 | 35 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 10 | SSW 22 | NNW 10 | NNW 10 | S 11 | NNW 9 | SSW 21 | SSW 20 | SSW 16 | S 11 | E 12 | S 11 | S 11 | SE 11 | SSW 15 | S 10 | S 10 | S 10 | S 10 | S 21 |
20 | 19 | 91 | 10 | 9 | 20 | 7 | 44 | 82 | 50 | 10 | 47 | 9 | 9 | 5 | 73 | 8 | 8 | 2 | 2 | 9 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | ENE 13 | NNE 9 | NE 9 | NNE 7 |
240 | 189 | 142 | 349 | 307 | 322 | 394 | 397 | 469 | 441 | 502 | 441 | 468 | 429 | 382 | 243 | 281 | 1700 | 161 | 231 | 107 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 46 | 41 | 46 | 56 | 41 | 46 | 48 | 41 | 42 | 52 | 17 | 41 | 46 | 41 | 41 | 41 | 17 | 17 | 18 | 16 |
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.










