Surf Forecasts:
Kailua Beach surf forecast from 30 Jul 2026:
- Most powerful swell: Sunday 2 Aug, 2AM (local time) - 8ft (2.5m), 8s period, ENE swell with 979 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 2.5m 8s and forecast to arrive on Sunday (Aug 02) 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 14s period and expected on Wednesday (Jul 29) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 2nd Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's chew the fat on what Kailua Beach is dishing up. I'm gonna be straight with you – this outlook is a tough one for this point break. The water is sitting at about 80°, which is right on the money for this time of year – no big shock there.
We start on Wednesday, July 29th, with some knee-to-waist high swell out of the ENE running at about 7ft. The wave energy is moderate at 733, but the wind is a frustrating cross-onshore from the north at 6 mph, messing up the surface. It's marginal, and I'd say save your energy.
From Thursday the 30th, it's a rough ride. The wind picks up and stays cranking from the east and ENE, blowing 12 to 22 mph for days. This keeps the ocean lumpy, choppy, and just plain ugly. The swell hangs around in the 5ft to 8ft range – and by Saturday, August 1st, we're looking at a solid 8ft swell from the ENE with wave energy hitting a strong 1055, but it's all wasted with those howling cross-onshore winds. That's a messy, blown-out mess, only for the hardcore. You'd be better off on a kite than a paddle board.
This poor run just keeps on giving. Day after day, the wind stays up, and the surf quality stays in the dumpster. We finally see a flicker of hope on Tuesday, August 4th. The swell drops to 5ft from the ENE, and the period stretches to a nice 11 seconds, giving it some punch. The wind eases right back to a light breeze from the east at 6 mph, but it's still a cross-onshore. The forecast calls it "marginal," which is better than "poor," but it's not clean.
Wednesday, August 5th, might be your best shot. In the early morning, we've got a 5ft ENE swell with a 9-second period, and the wind looks like it could be glassy with almost no breeze from the ENE. That's the kind of window that could clean things up, but don't get your hopes up. The rest of the week and into the second week just keeps the pattern of moderate to fresh cross-onshore winds and choppy conditions, with the odd marginal window. By the time we hit August 13th, the swell has backed off to a weak 3ft, with low energy of 165. It's a bleak run.
So, the truth is there isn't a proper standout session in this entire 16-day window. Kailua Beach is fairly consistent for swell, but the wind is just not cooperating. The swell almost always comes from the ENE, and we need that offshore from the SW to get clean waves, which just isn't in the cards. There's a long, blank run of poor conditions from Thursday, July 30th, all the way through to the end. Don't lose faith though – it tends not to stay poor for long here, and forecasts can change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 27°C on Wed night, min 24°C on Fri night). Winds increasing (light winds from the ENE on Wed night, strong winds from the ENE by Fri night). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 24°C on Sat night). Winds decreasing (strong winds from the ENE on Sat morning, light winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 10 | NE 9 | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 11 | ENE 11 | ENE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 733 | 470 | 344 | 310 | 226 | 303 | 397 | 435 | 745 | 850 | 893 | 979 | 758 | 642 | 574 | 404 | 379 | 370 | 524 | 452 | 388 |
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 | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 3:22PM0.87m | 2:24AM0.50m | 3:45PM0.86m | 3:04AM0.52m | 4:06PM0.83m | 3:48AM0.54m | 4:25PM0.79m | 4:37AM0.55m | 4:43PM0.75m | 5:34AM0.57m | 5:00PM0.69m | 6:49AM0.58m | 5:12PM0.63m | ||||||||
Low Tide | 9:59PM0.33m | 8:31AM0.08m | 10:19PM0.31m | 9:03AM0.12m | 10:40PM0.28m | 9:35AM0.18m | 11:03PM0.25m | 10:10AM0.26m | 11:29PM0.22m | 10:50AM0.35m | 00:00AM0.19m | 11:41AM0.45m | 00:39AM0.17m | ||||||||
 |  |  | | |  | | |  | | | | | | | | | | |  |  | |
 | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 27 | 29 | 30 | 27 | 27 | 26 | 25 | 23 | 22 | 21 | 22 | 21 | 22 | 22 | 22 | 25 | 23 | 25 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | NE 9 | ENE 8 | S 13 | S 13 | E 16 | E 15 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | ENE 12 | E 13 | E 12 | ENE 11 | ENE 11 | ENE 10 |
| kJ | 733 | 470 | 176 | 56 | 55 | 81 | 157 | 231 | 205 | 205 | 196 | 194 | 188 | 191 | 87 | 50 | 84 | 144 | 524 | 452 | 388 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 14 | NNE 7 | SW 18 | N 9 | S 13 | N 9 | N 8 | N 8 | SSW 14 | SSW 14 | N 10 | N 9 | N 9 | N 8 | N 8 | S 12 | SSW 12 | S 14 | SSW 12 | S 13 |
| kJ | 67 | 65 | 65 | 12 | 7 | 53 | 13 | 12 | 11 | 19 | 18 | 17 | 26 | 13 | 12 | 5 | 11 | 14 | 16 | 13 | 14 |
Swell 3 Height (m) Direction Period (s) | — | S 13 | S 14 | N 9 | E 18 | N 9 | S 12 | S 12 | S 12 | S 11 | N 11 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 | S 12 | N 10 | NNE 9 |
| kJ | — | 4 | 62 | 7 | 24 | 14 | 27 | 26 | 11 | 10 | 9 | 19 | 19 | 17 | 17 | 13 | 3 | 3 | 11 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — |
| kJ | — | — | 344 | 310 | 226 | 303 | 397 | 435 | 745 | 850 | 893 | 979 | 758 | 642 | 574 | 404 | 379 | 370 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 16 | 16 | 16 | 41 | 18 | 46 | 51 | 123 | 144 | 122 | 48 | 46 | 50 | 42 | 42 | 42 | 17 | 16 | 16 | 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.
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