Surf Forecasts:
Kailua Beach surf forecast from 24 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2PM (local time) - 10ft (3.0m), 11s period, NE swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 11AM (local time) - 11ft (3.5m), 11s period, NE swell with 3,153 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 2PM (local time) - 10ft (3.0m), 11s period with NE swell.
Best Forecast Surf Conditions for Kailua Beach this week:
The surf forecast for Kailua Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 2PM. The primary swell is predicted to be 3.0m and 11s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kailua Beach in the next 16 days are 3.5m 11s and forecast to arrive on Wednesday (Jul 29) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Jul 29) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 29th Jul) | 10ft (3.0m) 11s |
| Best Surf | 2PM (Wed 29th Jul) | 10ft (3.0m) 11s |
| Most Powerful | 11AM (Wed 29th Jul) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s see what Kailua Beach is shaping up for the next couple weeks. Gotta warn you straight up—the first week is pretty grim. Those trades are gonna be honking from the ENE, making everything choppy and sloppy. Leave the sticks at home for a bit.
Water temp is about 80°F, which is normal for this time of year. Nothing weird going on there.
Friday July 24th through Tuesday July 29th: Tough going. Onshore winds blowing 18 to 25 mph from the ENE. Swell is bumpy and short—around 7-8 seconds. Wave heights between 6ft and 7ft, but it’s all junk. Early combined energy numbers are weak to moderate (454-558). Then the 28th pumps up a bit (1629-1719 energy units) but still with bad, onshore winds and poor quality.
Then Wednesday July 29th finally shows some life. The morning has a 12ft NE swell with an 11-second period—marginal due to messy conditions but big energy (3153). The real winner is Wednesday afternoon: wind switches to light S at 6 mph, blowing cross-offshore. The swell settles to 8ft from the NE, 10 second period, and it cleans right up. Strong energy at 1177. That’s your session. Kailua Beach is a point that loves NE swell, so this one lines up. Not a spot for beginners though—8ft is serious, expert-only territory.
From Thursday July 30th all the way to Saturday August 8th, it's back to the grind. Trades return, swell gets short and lumpy, combined energy falls off a cliff. From July 30th to August 8th, most days show energy in the low hundreds to mid-800s, with the 7th and 8th being the weakest—barely a ripple. Winds are onshore or cross-onshore, mostly “poor surf conditions.” The only clean moment is Friday August 7th morning with light cross-offshore wind, but the swell is tiny (3ft, 177 energy). Not worth the paddle.
Best on offer: Wednesday July 29th, afternoon. That’s the one. Clean glassy winds, solid 8ft NE groundswell. Long-period energy (10-13 seconds range) means nice shape on this point, but also some lulls between sets. This is your standout in a long, flat, windy stretch.
That’s the word from here.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Warm (max 25°C on Fri morning, min 24°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Mon night. Warm (max 27°C on Wed afternoon, min 24°C on Mon morning). Winds decreasing (fresh winds from the NE on Mon night, light winds from the SSW by Wed afternoon). | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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 7 | ENE 7 | ENE 7 | NE 8 | NE 8 | ENE 8 | ENE 8 | E 15 | E 15 | E 14 | E 13 | ENE 13 | E 13 | E 13 | ENE 12 | NE 11 | NE 10 | ENE 8 | ENE 8 | ENE 8 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 446 | 379 | 405 | 450 | 503 | 546 | 403 | 418 | 602 | 668 | 690 | 1930 | 1380 | 1475 | 2400 | 3153 | 1177 | 510 | 473 | 385 | 348 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-on |
High Tide | 1:05PM0.75m | 1:36PM0.79m | 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 | ||||||||
Low Tide | 5:23AM0.14m | 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 | |||||||||
 |  |  | |  |  | | |  | | | |  | |  | | | | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — |
mm | 1 | — | — | — | — | 1 | — | — | — | — | — | 3 | 2 | 1 | 1 | 2 | 1 | 2 | 1 | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 22 | 22 | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 24 | 24 | 23 | 26 | 26 | 25 | 27 | 30 | 28 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 12 | SSW 17 | S 12 | E 14 | SSW 19 | S 18 | E 15 | E 15 | E 15 | E 14 | E 13 | SSW 14 | E 13 | E 13 | ENE 12 | NE 11 | NE 10 | ENE 8 | S 14 | SSW 13 | NNE 9 |
| kJ | 46 | 59 | 25 | 62 | 115 | 158 | 275 | 418 | 602 | 668 | 690 | 41 | 1380 | 1475 | 2400 | 3153 | 1177 | 510 | 57 | 59 | 28 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | S 12 | E 15 | SSW 19 | E 13 | E 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 11 | S 14 | S 14 | S 13 | S 15 | S 14 | S 14 | SW 18 | N 10 | S 13 |
| kJ | 104 | 25 | 42 | 125 | 55 | 72 | 90 | 86 | 83 | 73 | 42 | 2 | 32 | 32 | 30 | 38 | 65 | 62 | 12 | 7 | 30 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | SSW 21 | SSW 20 | S 11 | S 11 | E 12 | S 10 | S 11 | S 10 | S 11 | S 11 | S 18 | S 10 | — | S 15 | S 10 | S 20 | SW 19 | N 10 | S 7 | SSW 16 |
| kJ | 8 | 44 | 82 | 23 | 10 | 47 | 8 | 9 | 2 | 2 | 2 | 6 | 8 | — | 18 | 2 | 7 | 15 | 7 | 3 | 26 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | ENE 13 | NNE 9 | NNE 9 | NE 9 | — | SW 3 | S 4 | ENE 8 | ENE 8 | E 7 |
| kJ | 446 | 379 | 405 | 450 | 503 | 546 | 403 | 382 | 302 | 268 | 281 | 1930 | 249 | 244 | 39 | — | 3 | 6 | 473 | 385 | 348 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 123 | 123 | 41 | 46 | 48 | 41 | 41 | 41 | 41 | 18 | 122 | 17 | 18 | 163 | 16 | 13 | 0 | 16 | 41 | 41 | 46 |
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.
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