Surf Forecasts:
Kailua Beach surf forecast from 19 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 5PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 575 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 2.3m 8s and forecast to arrive on Saturday (Jul 25) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 16s period and expected on Monday (Jul 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sat 25th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright, folks, let me be straight with you. I’ve been looking at the charts for Kailua Beach, and honestly, it’s a tough stretch ahead. Over the next 16 days, this spot just isn’t offering any decent surf. The swell’s coming in from the east-northeast or east, but the wind’s been blowing cross-onshore or straight onshore nearly every day, chewing up the surface. The wave heights are there – we’ll see 4ft to 8ft at times – but the wind’s ruining it, making it choppy and lumpy. Even the longer-period groundswell that shows up around July 26th with a 17-second period and energy readings in the 900–1200 range (strong energy) is wasted because the wind is still onshore. The swell direction is also off the optimum for Kailua, which likes a NE direction, not ENE or E. So there’s no window where the conditions line up.
For a point break that’s fairly consistent, it’s a bummer. The crowds might be a factor sometimes, but right now nobody’s rushing out because the surf’s poor. Beginners might be tempted by the 5ft+ days, but with that onshore wind, it’s just messy. And when the swell pushes over 8ft on July 24th afternoon, that’s expert territory only, but again, the wind’s onshore, so it’s not worth it. The whole period is a blank run – not a single recommendation. Sometimes that’s just how it goes in this area; forecasts can change, but for now, leave the boards in the car.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon morning. Warm (max 25°C on Sat night, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 25°C on Tue night, min 24°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 384 | 310 | 284 | 217 | 286 | 285 | 186 | 153 | 195 | 220 | 153 | 144 | 225 | 223 | 360 | 427 | 458 | 574 | 481 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 6:30AM0.52m | 5:48PM0.68m | 8:04AM0.54m | 5:54PM0.61m | 10:10AM0.59m | 5:15PM0.56m | 11:42AM0.65m | 12:30PM0.71m | 1:05PM0.75m | ||||||||||
Low Tide | 00:30AM0.24m | 11:24AM0.37m | 1:03AM0.23m | 12:17PM0.48m | 1:41AM0.22m | 2:38PM0.55m | 2:27AM0.21m | 3:25AM0.19m | 4:27AM0.17m | ||||||||||
 |  | | |  | |  |  | |  | | | | | | | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — |
 | 7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — |
mm | — | — | — | — | 1 | 1 | — | — | — | 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 |
Feels °C | 23 | 23 | 23 | 23 | 25 | 24 | 23 | 25 | 25 | 23 | 23 | 23 | 22 | 23 | 22 | 22 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | NNE 8 | NNE 8 | NNE 8 | S 16 | S 16 | S 15 | S 14 | S 14 | E 13 | E 12 | E 11 | E 12 | S 12 | SSW 20 | SSW 18 | S 12 | SSW 17 | SSW 16 |
| kJ | 30 | 12 | 12 | 50 | 47 | 81 | 107 | 103 | 99 | 121 | 103 | 125 | 148 | 45 | 75 | 112 | 46 | 59 | 53 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSW 12 | S 19 | S 18 | S 13 | SW 18 | E 12 | E 12 | E 14 | S 14 | SSE 13 | S 13 | S 13 | SSW 20 | S 11 | S 11 | SSW 18 | S 12 | S 12 |
| kJ | 3 | 15 | 27 | 55 | 31 | 12 | 12 | 25 | 37 | 89 | 60 | 54 | 52 | 77 | 23 | 20 | 61 | 25 | 24 |
Swell 3 Height (m) Direction Period (s) | S 21 | S 19 | SSW 12 | S 11 | SW 18 | E 13 | SW 16 | E 15 | E 11 | S 26 | S 11 | SSW 23 | SSW 22 | NNW 10 | NNW 10 | S 13 | NNW 9 | SSW 21 | SSW 20 |
| kJ | 8 | 29 | 15 | 10 | 13 | 3 | 11 | 17 | 22 | 53 | 20 | 107 | 91 | 10 | 9 | 31 | 8 | 44 | 81 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
| kJ | 384 | 310 | 284 | 217 | 286 | 285 | 186 | 153 | 195 | 220 | 153 | 144 | 225 | 223 | 360 | 427 | 458 | 574 | 481 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 42 | 41 | 126 | 17 | 17 | 41 | 17 | 41 | 41 | 41 | 41 | 46 | 41 | 46 | 46 | 46 | 48 | 48 | 41 |
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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