Surf Forecasts:
Kailua Beach surf forecast from 26 Jul 2026:
- Most powerful swell: Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 12s period, ENE swell with 2,250 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 3.0m 12s and forecast to arrive on Wednesday (Jul 29) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Saturday (Jul 25) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 29th Jul) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I gotta be straight with you about Kailua Beach on Oahu. We’ve got a 16-day window here, but honestly, it’s a tough stretch. We're looking at a solid blank run of poor conditions that lasts almost the entire first week and a half, all the way from Saturday the 25th of July through to Tuesday the 4th of August. The wind just won't play nice.
Now, the water temp is sitting at 79.9° with barely any anomaly—about average for this time of year, nothing wild.
There is a tiny glimmer of hope. Come Wednesday the 29th of July, things might finally flip. In the morning, we’re looking at a solid 9.8ft swell from the ENE (period a short 11 seconds) and light NNW winds. That combo gives us a cross wind, so it’s marginal and the combined energy is strong at 2292. Not great, but it’s a step. The real story is Wednesday afternoon. The swell drops a little to 8.2ft from the NE, but the wind switches to a light SSE breeze, giving us clean, cross-off conditions. The combined energy is still a solid 1286 thanks to some longer-period vibe. For that afternoon session, the wave comment says it’s excellent for experienced surfers. That’s your best bet. This is a point break so it can handle that direction, but the swell size at 8.2ft means it’s expert territory – this isn’t a beginner wave.
After that little Wednesday window, we’re right back into it. From Thursday the 30th of July right through to Sunday the 9th of August, it’s that same old story: cross-onshore or onshore wind, lumpy, choppy, poor surf. The swell keeps coming but it’s messy, with periods often dropping to 7 or 8 seconds. The combined energy fluctuates but the quality just isn’t there. That first standout on Wednesday the 29th is your only real look.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 26°C on Tue afternoon, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 26°C on Thu morning, min 24°C on Tue night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the ENE by Fri morning). | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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 | E 15 | E 15 | E 14 | E 13 | E 14 | E 13 | E 13 | ENE 12 | ENE 11 | NE 10 | ENE 9 | ENE 8 | ENE 8 | E 7 | E 8 | E 7 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 477 | 403 | 418 | 602 | 640 | 690 | 1433 | 1370 | 1838 | 2250 | 2017 | 1370 | 254 | 418 | 324 | 416 | 504 | 491 | 601 |
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 | cross-on | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 7:13 | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — |
mm | — | — | — | — | — | — | 3 | 2 | 1 | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 |
Feels °C | 22 | 22 | 23 | 22 | 24 | 24 | 24 | 26 | 26 | 25 | 27 | 28 | 29 | 28 | 27 | 26 | 24 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | E 15 | E 15 | E 15 | E 14 | E 13 | E 14 | E 13 | E 13 | ENE 12 | ENE 11 | NE 10 | ENE 9 | SSW 13 | S 13 | E 17 | E 16 | E 15 | E 15 |
| kJ | 103 | 275 | 418 | 602 | 640 | 690 | 1433 | 1370 | 1838 | 2250 | 2017 | 1370 | 254 | 60 | 55 | 135 | 174 | 213 | 205 |
Swell 2 Height (m) Direction Period (s) | E 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | S 13 | SSW 15 | S 14 | N 7 | SW 18 | E 18 | S 13 | S 12 | S 12 | N 8 |
| kJ | 72 | 90 | 85 | 83 | 73 | 42 | 41 | 32 | 32 | 30 | 71 | 65 | 131 | 12 | 56 | 53 | 27 | 26 | 11 |
Swell 3 Height (m) Direction Period (s) | E 12 | S 10 | S 11 | SE 11 | S 11 | S 11 | S 11 | S 10 | — | S 15 | S 15 | S 20 | S 14 | E 19 | N 9 | N 9 | N 9 | N 8 | S 12 |
| kJ | 47 | 9 | 9 | 5 | 2 | 2 | 2 | 7 | — | 18 | 71 | 7 | 62 | 29 | 6 | 14 | 13 | 12 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | NE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | — | — | — | ENE 8 | ENE 8 | E 7 | E 8 | E 7 | E 8 |
| kJ | 477 | 403 | 372 | 320 | 301 | 322 | 191 | 191 | 141 | 132 | — | — | — | 418 | 324 | 416 | 504 | 491 | 601 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 41 | 46 | 46 | 41 | 41 | 41 | 17 | 17 | 42 | 16 | 15 | 15 | 6 | 16 | 17 | 41 | 46 | 48 | 48 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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