Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 am 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.1° C
0.1° 

Kailua Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kailua Beach surf forecast from 9 Jul 2026:

  • Most powerful swell: Sunday 12 Jul, 2PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 613 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 Thursday (Jul 09) at 2PM.

Wave TypeTime (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 folks, Rusty here. Let’s be straight with you – this is a grim run for Kailua Beach. The whole 16-day window is one long stretch of poor surf conditions. There’s nothing to get excited about, no standout sessions, and honestly, no real reason to paddle out.

We start off on Thursday, July 9th, with some lumpy, cross-on mess from the ENE. The swell is around 6.6 ft, but with a short period of 8 seconds and a fresh breeze up to 18.6 mph, it’s just choppy and blown out. That combined swell energy is only moderate at 477. The water temperature is 79°, which is about average for this time of year. This pattern just keeps rolling through the weekend. Friday and Saturday are the same story – onshore wind, 5.9 ft to 6.6 ft of short-period slop, and scores that are flat zeros. Sunday the 12th brings rain showers and a slightly bigger 7.5 ft of swell, but the wind is still cross-on and the energy jumps to 560, still moderate. It’s all rough and not worth your time.

The first week is a total write-off. Wind stays onshore or cross-onshore every day, with speeds between 12.4 mph and 21.7 mph. The swell is always from the ENE, short period (7-8 seconds), and the wave comment is always “poor surf conditions.” The combined energy never gets above 613, keeping everything in the moderate range. Even when the wind eases a bit on Tuesday the 15th, it’s still cross-onshore and choppy.

Then we hit a gap of several days where nothing changes. From July 16th through the 20th, it’s the same old story: cross-onshore winds, short-period swell, and “poor surf conditions.” The swell hangs around 6.2 ft to 3.3 ft, but the wind and short period ruin any chance of shape.

Now, right at the very end, on Tuesday, July 21st, we get a weird blip. The swell direction shifts to the east, and the period jumps to 20 seconds – that’s a very long period groundswell. The combined energy spikes to 1095, which is strong. But there’s a catch. The wind is still onshore from the ENE at 15.5 mph, and the wave comment is still “poor surf conditions.” The swell is only 3.3 ft, so that long period is going to make it fat and weak, and the onshore wind will chop it up. This is a classic case of a long-period swell that would be better at a point break or reef, not a beach setup like Kailua Beach. The next day, Wednesday the 22nd, is similar with a 3.9 ft swell from the east, 16-second period, and strong energy (821), but again, onshore wind ruins it.

The rest of the week into July 24th sees the swell drop to 2.3 ft and 4.9 ft, with periods getting shorter again. The wind stays onshore, and the rain showers return. It’s all poor.

So, the honest truth: there are zero good surf options in this 16-day window. Kailua Beach is a consistent spot, but this run is a total blank for quality waves. Forecasts can change, but right now, it’s a hard pass. Keep the board in the car and wait for a better day.

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 25°C on Thu morning, min 24°C on Thu morning). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 25°C on Tue afternoon, min 24°C on Sun morning). Mainly fresh winds.

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ENE
8
2.1
ENE
7
2.1
ENE
7
1.8
ENE
7
1.8
ENE
7
2
ENE
7
2
ENE
7
1.9
ENE
7
1.9
ENE
7
2.3
ENE
7
2.3
ENE
8
2.1
ENE
8
1.9
ENE
8
1.9
ENE
7
1.7
ENE
7
1.1
E
8
1.7
ENE
8
1.7
ENE
7
1.7
ENE
7
1.7
ENE
7
1.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
477
482
469
330
316
383
400
366
355
560
613
541
400
379
286
133
314
310
256
241
241
Wind (km/h)
30
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
NE
30
ENE
25
ENE
30
ENE
25
E
25
ENE
25
ENE
20
ENE
Wind State
cross-on
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
11:56AM0.74m
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
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
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:56
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:15
7:15
7:15
7:15
7:15
 mm
1
1
1
Temp °C
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
25
24
25
25
25
Feels °C
24
22
21
22
22
22
21
21
22
22
21
21
21
21
21
22
24
22
24
24
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Kailua Beach:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kailua Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest