Surf Forecasts:
Kailua Beach surf forecast from 10 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 2PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 597 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 Sunday (Jul 12) at 2PM. 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 Friday (Jul 10) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 12th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
Alright, let's get into it, folks. Rusty here.
Right off the bat, I gotta be straight with you: for the next couple of weeks, Kailua Beach on the Big Island is looking like a write-off if you're chasing a proper surf. The whole 16-day forecast is a real tough watch, with nothing that I'd call a decent session. The first real chance of a wave doesn't show up until Friday the 10th, but even then, it's not good.
We're looking at a consistent ENE wind pattern that's just gonna wreck the surface. From Friday the 10th, right through the following week, it's mostly onshore or cross-onshore, blowing at 15 to 22 mph. That's fresh breeze territory, and it's going to make things choppy and lumpy, especially from Sunday the 12th onwards when the rain showers show up. The swell sticks around, with heights from 4ft to 7ft, and the combined wave energy is moderate, sitting between 180 and 596. But honestly, with that wind and short period swell of just 6 to 8 seconds, it's all messy, close-out junk.
The water temp is about average for this time of year, so no surprises there.
If you're a beginner, be careful. From the 10th to the 13th, the swell pushes over 6ft, and it hits 7ft on the 11th and 12th. That’s getting too chunky for learning. For the crew who can handle it, the setup just isn't there. The period is short, the wind is on it – it’s a frustrating pattern.
There’s a slight dip in swell around the 22nd of July, dropping to 3ft, but the wind stays strong. Then it bumps back up slightly around the 24th, but the cross-shore wind is still ruining any chance of a clean wave. There's no standout day, no sneaky window of glassy conditions. It's just a solid two-week stretch of poor surf.
Given the consistent onshore wind and the beach/point setup, honestly, this looks like it might be more interesting for a kite surfer than a paddle surfer for the majority of the period. For us, it’s a time to maybe work on the board dings and wait for the forecast to change. It’s a rough run, but it tends not to stay this poor for long – forecasts can flip.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu night. Warm (max 25°C on Thu night, min 24°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Wed morning. Warm (max 25°C on Tue morning, min 24°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thu 16 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | NNE 8 | ENE 6 | ENE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 512 | 366 | 310 | 459 | 437 | 407 | 384 | 475 | 596 | 483 | 389 | 327 | 307 | 297 | 306 | 289 | 235 | 180 | 89 | 143 | 134 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:47PM0.83m | 9:36PM0.45m | 1:33PM0.91m | 11:18PM0.44m | 2:16PM0.96m | 00:30AM0.44m | 2:56PM0.98m | 1:30AM0.45m | 3:34PM0.98m | 2:26AM0.47m | 4:09PM0.95m | 3:20AM0.49m | 4:41PM0.89m | ||||||||
Low Tide | 4:28AM0.08m | 8:34PM0.45m | 5:24AM0.03m | 8:53PM0.41m | 6:18AM-0.01m | 9:22PM0.38m | 7:09AM-0.04m | 9:53PM0.36m | 7:56AM-0.04m | 10:25PM0.34m | 8:40AM-0.00m | 10:56PM0.31m | 9:22AM0.06m | ||||||||
 |  | |  | | | |  | | | | | | | | | | | | |  | |
 | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — |
 | 7:16 | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 |
mm | 1 | — | — | — | — | — | — | 1 | 2 | — | — | — | — | 1 | — | 1 | 4 | 2 | 4 | — | — |
Temp °C | 25 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 21 | 22 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | 22 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | SSW 18 | SSW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 13 | SSW 18 | NNE 8 | NNE 8 | NNE 7 |
| kJ | 26 | 24 | 11 | 11 | 34 | 30 | 48 | 41 | 40 | 39 | 23 | 21 | 20 | 19 | 18 | 29 | 16 | 31 | 89 | 64 | 41 |
Swell 2 Height (m) Direction Period (s) | S 15 | SW 21 | SW 21 | SSW 19 | S 12 | S 12 | S 13 | S 13 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSW 19 | SSE 11 | SSW 13 | SSW 18 | SSW 12 | SSW 16 | SSW 16 | SSW 17 |
| kJ | 4 | 18 | 17 | 37 | 11 | 11 | 13 | 13 | 11 | 14 | 14 | 13 | 12 | 36 | 11 | 16 | 30 | 14 | 48 | 25 | 29 |
Swell 3 Height (m) Direction Period (s) | S 18 | — | SE 6 | W 13 | W 14 | S 14 | — | W 13 | — | W 12 | S 20 | SW 21 | SW 18 | SSE 11 | SW 19 | SE 10 | W 16 | SW 15 | W 16 | SSW 13 | SSW 13 |
| kJ | 6 | — | 2 | 3 | 4 | 4 | — | 3 | — | 3 | 8 | 17 | 13 | 11 | 14 | 4 | 5 | 8 | 19 | 17 | 17 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 |
| kJ | 512 | 366 | 310 | 459 | 437 | 407 | 384 | 475 | 596 | 483 | 389 | 327 | 307 | 297 | 306 | 289 | 235 | 180 | 77 | 143 | 134 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 41 | 46 | 41 | 46 | 48 | 41 | 46 | 51 | 42 | 41 | 41 | 17 | 41 | 41 | 17 | 41 | 41 | 17 | 41 | 43 |
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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