Surf Forecasts:
Kailua Beach surf forecast from 1 Aug 2026:
- Most powerful swell: Sunday 2 Aug, 2AM (local time) - 8ft (2.5m), 8s period, ENE swell with 908 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 0.3m 12s period and expected on Thursday (Aug 06) at 5AM.
| 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
Right, folks, Rusty here. Let's have a look at what's cookin' for the Kailua Beach stretch over the next couple of weeks.
Straight up, it's a bleak run. For a solid 16 days, there's barely a whisper of decent surf. The wind is the main culprit – that strong, onshore, ENE flow is just hammering the place day in, day out. The water temp's sitting at a pretty warm 80°, which is bang on average for this time of year, so you can't complain about that, but the conditions are just a mess.
Right now, Friday the 31st of July through to Monday the 3rd of August, you're looking at chest to maybe head-high waves at 6 ft to 8 ft, but it's all coming from the east with a short, weak 8-second period. The combined energy is all over the place, peaking at a moderate 1107 on Saturday morning, but it's completely undone by that 22 mph onshore wind. It's just lumpy, bumpy, and close to useless. Honestly, for anyone who can handle it, the setup looks more interesting for kite surfing than paddle surfing right now.
The best you're going to get, and I'm being generous here, is a little window on Tuesday the 4th of August. By Tuesday morning, the swell drops to 5 ft from the ENE, but the period stretches out to a more interesting 11 seconds. The combined energy is still moderate at 515, and the wind eases right back to a gentle 9 mph onshore breeze. It is still onshore, so it won't be perfect, but that longer period suggests a bit more shape and energy in the lines, with longer lulls between sets. It's a 'marginal' call, but it's the only one that even has a pulse.
Other than that, it’s just a long, grim stretch. From the 5th of August right through to the 14th, it's the same story: small, short-period windswell, cross-onshore or onshore winds at 9 to 22 mph, and all the comments say "poor surf conditions." Every morning and afternoon is written off. There are no standouts in this forecast. None. It's just a blank run, and with this kind of persistent trade wind pattern, that's about normal for the area.
Keep your eye on the sky and hope those trade winds take a holiday. This one's a washout.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 26°C on Fri afternoon, min 24°C on Sun night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon night. Warm (max 26°C on Wed morning, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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) | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | E 8 | ENE 8 | ENE 7 | E 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 504 | 756 | 902 | 804 | 908 | 740 | 650 | 604 | 402 | 370 | 361 | 515 | 436 | 314 | 271 | 206 | 266 | 223 | 160 | 126 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 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 | 8:35AM0.61m | 5:05PM0.58m | 10:38AM0.68m | ||||||||
Low Tide | 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 | 1:20PM0.54m | 1:33AM0.15m | 2:46AM0.13m | ||||||||
 |  |  | |  | | | |  | |  | | |  | |  | | | | | |
 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | 2 | 2 | — | 1 | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 24 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 25 | 24 | 24 | 27 | 26 | 26 | 28 | 28 | 28 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | NNE 8 | ENE 8 | S 12 | NNW 8 | ENE 7 |
| kJ | 231 | 205 | 205 | 196 | 194 | 138 | 134 | 87 | 84 | 76 | 103 | 515 | 436 | 314 | 271 | 7 | 207 | 11 | 6 | 37 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | SSW 14 | SSW 14 | N 10 | N 9 | N 9 | N 8 | N 8 | SSE 13 | SSW 12 | SSW 12 | SSW 11 | S 13 | NNE 9 | S 12 | S 12 | NNW 8 | S 11 | NNW 7 |
| kJ | 12 | 11 | 19 | 18 | 17 | 26 | 14 | 6 | 10 | 17 | 14 | 14 | 13 | 14 | 8 | 12 | 11 | 6 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | N 11 | SSW 14 | SSW 14 | SW 13 | SSW 13 | S 13 | SSW 12 | N 7 | SSE 12 | N 10 | NNE 9 | S 13 | SSW 11 | N 8 | N 8 | SE 8 | S 11 |
| kJ | 26 | 11 | 10 | 9 | 19 | 19 | 7 | 17 | 13 | 15 | 4 | 15 | 8 | 8 | 13 | 11 | 5 | 5 | 2 | 9 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | ENE 9 | E 8 | ENE 8 | ENE 7 | E 6 |
| kJ | 504 | 756 | 902 | 804 | 908 | 740 | 650 | 604 | 402 | 370 | 361 | — | — | — | — | 206 | 266 | 223 | 160 | 126 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 56 | 56 | 152 | 122 | 125 | 125 | 336 | 42 | 17 | 42 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 41 | 41 | 17 |
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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