Surf Forecasts:
Kailua Beach surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 8AM (local time) - 10ft (3.0m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 13s period, ENE swell with 3,090 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8AM (local time) - 10ft (3.0m), 11s period with ENE swell.
Best Forecast Surf Conditions for Kailua Beach this week:
The surf forecast for Kailua Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 8AM. The primary swell is predicted to be 3.0m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kailua Beach in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Jul 28) 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 0.7m 14s period and expected on Tuesday (Jul 28) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 29th Jul) | 10ft (3.0m) 11s |
| Best Surf | 8AM (Wed 29th Jul) | 10ft (3.0m) 11s |
| Most Powerful | 11PM (Tue 28th Jul) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's talk about Kailua Beach.
Alright, looking at the whole 16-day window here, it's a real mixed bag, and honestly, most of it is a write-off. We've got a long stretch of poor conditions, with only one real window that's worth getting excited about. The water's sitting at a pretty normal 80° for this time of year, so nothing weird going on there.
The first recommendation doesn't pop up until Wednesday, July 29th, and that's where all the action is. For the Wednesday morning, we've got a solid 10ft NE swell rolling in, with a period of 11 seconds. That's a serious groundswell, and it's packing a lot of punch – the combined energy is up there at 1868. The wind is a light 6 mph from the SSW, which is a cross-offshore breeze, meaning the wave faces are going to be super clean. This is top-tier stuff, but that 10ft is big. This is strictly for the experienced crew. Beginners, stay on the beach for this one.
Wednesday afternoon the swell drops back to 6ft from the ENE, but the wind shifts to a light 9 mph SSE cross-offshore. The combined energy drops to 865, which is still moderate. It's a step down, but it could be a fun, clean session for the intermediates.
Then, from Thursday, July 30th onward, it's a pretty grim picture. The wind goes onshore or cross-onshore, the swell gets messy with short periods, and the combined energy fluctuates but the quality is just poor. We get a run of "poor surf conditions" day after day, right through to the end of the forecast on August 9th. There's a lot of ENE wind, 15 to 25 mph, making for choppy, lumpy, and generally unrideable conditions. Even when the swell is 5ft or 7ft, the wind kills it.
So, to sum it up: the standout is without a doubt Wednesday, July 29th, morning. That's your session. Everything else in this 16-day window is a washout. You'll be waiting a long time for the next good one.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 25°C on Sat morning, min 24°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue morning. Warm (max 28°C on Wed afternoon, min 25°C on Tue morning). Winds increasing (light winds from the SSW on Wed morning, fresh winds from the E by Thu night). | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | E 15 | E 15 | E 14 | E 13 | ENE 13 | E 13 | E 13 | ENE 12 | NE 11 | ENE 10 | E 8 | ENE 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 517 | 531 | 480 | 403 | 418 | 602 | 515 | 577 | 2084 | 1349 | 1821 | 2828 | 1868 | 702 | 548 | 416 | 308 | 445 | 544 | 551 | 698 |
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 | cross-on | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:36PM0.79m | 11:19PM0.41m | 2:05PM0.83m | 00:19AM0.43m | 2:32PM0.85m | 1:04AM0.45m | 2:58PM0.86m | 1:44AM0.47m | 3:22PM0.87m | 2:24AM0.50m | 3:45PM0.86m | 3:04AM0.52m | 4:06PM0.83m | 3:48AM0.54m | |||||||
Low Tide | 9:11PM0.40m | 6:10AM0.11m | 9:11PM0.38m | 6:50AM0.08m | 9:23PM0.37m | 7:26AM0.06m | 9:40PM0.35m | 7:59AM0.05m | 9:59PM0.33m | 8:31AM0.08m | 10:19PM0.31m | 9:03AM0.12m | 10:40PM0.28m | ||||||||
 |  |  | | | | | |  |  | | | | |  | | |  | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — |
mm | — | — | — | — | — | — | — | — | 3 | 2 | 1 | — | — | 1 | 3 | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 27 | 28 | 27 | 26 | 26 | 26 | 25 | 25 | 25 |
Feels °C | 23 | 23 | 22 | 22 | 23 | 22 | 23 | 24 | 24 | 26 | 26 | 25 | 30 | 29 | 29 | 27 | 26 | 25 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | E 14 | SSW 19 | SSW 18 | E 15 | E 15 | E 15 | E 14 | E 13 | S 14 | E 13 | E 13 | ENE 12 | NE 11 | ENE 10 | ENE 8 | SSW 14 | SSW 13 | E 16 | E 15 | E 15 | E 14 |
| kJ | 62 | 115 | 103 | 275 | 418 | 602 | 515 | 577 | 37 | 1349 | 1821 | 2828 | 1868 | 702 | 468 | 61 | 59 | 80 | 161 | 157 | 202 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | E 13 | E 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | S 14 | S 15 | N 8 | S 14 | SW 18 | E 16 | S 13 | S 12 | N 8 | N 8 |
| kJ | 125 | 55 | 72 | 90 | 86 | 83 | 43 | 42 | 213 | 32 | 32 | 36 | 67 | 163 | 62 | 12 | 47 | 30 | 27 | 12 | 11 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | E 12 | S 10 | S 11 | SE 11 | S 11 | S 11 | SE 10 | S 10 | — | S 15 | — | S 14 | SW 19 | N 10 | N 9 | N 9 | N 8 | S 12 | S 12 |
| kJ | 23 | 9 | 47 | 8 | 9 | 5 | 2 | 2 | 4 | 8 | — | 4 | — | 65 | 15 | 7 | 15 | 14 | 12 | 26 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | ENE 13 | NNE 7 | NNE 9 | — | — | S 3 | E 8 | ENE 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
| kJ | 517 | 531 | 480 | 403 | 362 | 311 | 309 | 262 | 2084 | 169 | 258 | — | — | 5 | 548 | 416 | 308 | 445 | 544 | 551 | 698 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 48 | 41 | 41 | 46 | 41 | 41 | 41 | 17 | 17 | 42 | 16 | 0 | 7 | 41 | 41 | 41 | 41 | 52 | 122 | 48 |
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.
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