Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 1 am 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.8° C
0.4° 

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 1 Aug 2026:

  • Most powerful swell: Saturday 1 Aug, 2PM (local time) - 8ft (2.5m), 8s period, ENE swell with 939 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 Saturday (Aug 01) at 2PM. Winds are predicted to be 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 TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sat 1st Aug)8ft (2.5m) 8s

Table - best surf conditions forecast for Kailua Beach over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on offer over the next couple of weeks.

Alright, so the bad news first: for the entire 16-day window, the conditions at Kailua Beach are just plain ugly. We’ve got a persistent ENE wind blowing straight onshore or cross-onshore for the whole run, and that’s going to keep the surf messy and blown out. There’s no real stand-out session here, I’m sorry to say. The forecast shows a long stretch of poor surf quality with no break in the pattern.

The swell energy is moderate to strong, but all that energy is paired with bad wind. On the 1st of August, Saturday morning, we’re looking at 8.2ft of swell from the E with a period of 8 seconds, and the combined energy is a hefty 1129 (strong wave energy). But with a cross-on 25 mph wind, it’s just a washing machine. That’s more of a kite-surfing setup than a paddle-surfing one. Water temp is 80.2°F with a 0.7°F anomaly – that’s about average for this time of year.

The pattern stays the same through the first week. Swell heights drop a bit, but the wind stays on it. The 4th of August, Tuesday morning, sees a drop in wind to 9 mph, but it’s still cross-on, and the swell is 5.2ft from the ENE with a longer period of 11 seconds. That longer period could give some shape, but the cross-on wind will still chop it up. The energy is moderate at 593.

From the 5th onward, we’ve got a mix of gentle to moderate breezes, but always cross-onshore. The swell drops to around 3.9ft to 4.9ft, with periods shortening to 6 or 7 seconds by the 10th. That’s short-period, weak energy (down to 109 on the 16th). The entire second week is just more of the same: poor conditions, chop, and lumpy surf.

There’s honestly no day I’d recommend paddling out at Kailua Beach in this window. The combination of persistent onshore wind and messy conditions means you’re better off waiting for a change in the forecast.

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 26°C on Sat morning, min 24°C on Mon night). Winds decreasing (strong winds from the ENE on Sat morning, light winds from the ENE by Mon night).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Tue night. Warm (max 26°C on Wed morning, min 24°C on Tue morning). Wind will be generally light.

Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
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)
2.5
E
8
2.5
ENE
8
2.5
ENE
8
2.2
ENE
8
2.2
ENE
8
2.1
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
1.6
ENE
11
1.5
ENE
11
1.4
ENE
11
1.2
ENE
10
1.2
ENE
9
1.1
ENE
9
1.3
ENE
8
1.2
ENE
6
1
E
6
1.2
E
6
1.4
ENE
6
1.8
E
7
Wave Graph
Metric surfscale
Energy kJ
924
910
908
682
650
533
361
370
329
593
496
427
275
222
172
229
115
71
104
170
280
Wind (km/h)
40
ENE
35
ENE
40
ENE
35
ENE
35
ENE
30
ENE
20
ENE
25
ENE
20
ENE
15
ENE
15
NE
15
E
15
ENE
15
ENE
20
E
20
E
25
ENE
20
ENE
30
ENE
30
ENE
30
ENE
Wind State
cross-on
on
cross-on
on
on
on
on
on
on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
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
11:52AM0.77m
Low Tide
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
4:07AM0.10m
clear
clear
rain showers
clear
clear
part cloud
part cloud
clear
rain showers
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:08
7:08
7:07
7:07
7:07
7:06
 mm
1
1
2
2
1
1
1
Temp °C
26
25
25
25
25
25
25
25
25
25
25
25
26
26
26
26
26
26
25
26
25
Feels °C
23
22
22
22
22
22
25
25
24
26
26
27
28
28
27
27
27
27
24
26
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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