Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 1 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
27.3°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 13 Sep 2026:

  • Most powerful swell: Thursday 17 Sep, 5PM (local time) - 8ft (2.4m), 10s period, ENE swell with 1,066 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 2.4m 10s and forecast to arrive on Thursday (Sep 17) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Wednesday (Sep 16) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Thu 17th Sep)8ft (2.4m) 10s

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 the cards for Kailua Beach over the next couple of weeks. Straight up, I gotta be honest with you – it's a tough stretch. The forecasts are pretty grim, and we're looking at a long, barren run. If you're desperate for a paddle, keep your expectations on the floor, because the conditions just aren't playing ball for most of this period.

The water temp is sitting at 81°, which is bang on average for this time of year, so at least you won't be cold while you're staring at chopped-up waves.

We kick things off on Saturday, the 12th, and honestly, there's nothing to get excited about. The swell is small, around 3 ft from the NE, but the 9 mph ENE wind is onshore, just ruining any chance of a clean wave. The energy is weak (213), and the report says poor surf conditions. That’s our reality for days and days. Sunday the 13th through to Friday the 25th of September is a massive stretch of poor to marginal surf. Swell sizes bounce around from 2 ft up to 8 ft, and at times we see some serious energy pumping through – like that 1066 reading on Thursday the 17th. But it doesn't matter one bit because the wind is almost always a stiff onshore or cross-onshore breeze from the ENE or E, gusting 12 to 19 mph. That combo of solid swell and nasty wind makes it look more interesting for kite surfing than paddle surfing. The wave period is often short too, between 5 and 8 seconds, which means weak, messy, lumpy conditions at this beach-and-point setup.

There is a tiny flicker of hope right at the end of the outlook. On Friday the 25th of September, things get a little interesting. The wind drops right off to a light 6 mph from the ESE, swinging cross-shore. Swell drops to 4 ft from the E, with a 10-second period (258 energy). The wave comment is only "marginal," but with the wind that light, it might clean up for a sneaky session. Then on Saturday the 26th, the swell direction shifts to the N, with a 6 ft swell and a very long 12-second period (971 energy). That's proper groundswell potential, but the wind is back to a gentle cross-onshore, so it'll likely still be choppy.

For the entire 16-day run, there's no standout session. The consistent poor conditions mean we’re in a waiting game. Don't hold your breath for the long-range stuff on the 26th and 27th – it’s promising but less certain with the wind likely to mess it up.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue morning. Warm (max 26°C on Tue morning, min 25°C on Sat afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 16mm), heaviest on Thu night. Warm (max 26°C on Tue afternoon, min 25°C on Wed night). Mainly fresh winds.

Sat
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
NE
9
0.9
NNE
9
0.9
NNE
9
0.9
NE
9
0.9
NE
9
0.8
NE
8
0.7
NE
8
0.6
NE
8
0.6
NNE
8
0.7
NNE
8
1.1
ENE
5
1.3
ENE
5
1.5
ENE
6
1.7
ENE
6
2.1
ENE
7
2.4
ENE
10
2.3
ENE
9
2.1
E
8
2
E
8
2
E
7
Wave Graph
Metric surfscale
Energy kJ
115
135
138
112
123
82
69
51
39
51
72
83
134
207
431
1066
791
603
535
411
Wind (km/h)
15
ENE
15
E
15
ENE
20
ENE
20
ENE
20
ENE
15
ENE
20
ENE
20
ENE
20
ENE
25
ENE
30
ENE
30
NE
30
NE
30
ENE
30
ENE
30
ENE
20
E
25
ENE
20
E
Wind State
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
3:01PM0.71m
3:52AM0.73m
3:16PM0.65m
4:32AM0.72m
3:26PM0.60m
5:15AM0.70m
3:27PM0.55m
6:09AM0.67m
3:00PM0.53m
7:35AM0.64m
9:58AM0.64m
Low Tide
9:22PM0.14m
9:44AM0.32m
9:43PM0.13m
10:23AM0.39m
10:04PM0.13m
11:06AM0.45m
10:26PM0.15m
12:06PM0.50m
10:52PM0.18m
11:26PM0.21m
00:33AM0.25m
clear
clear
clear
clear
clear
part cloud
clear
part cloud
rain showers
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:34
6:32
6:31
6:30
 mm
1
3
1
1
7
4
Temp °C
25
25
25
25
25
25
25
25
26
26
26
26
26
26
26
26
25
26
26
26
Feels °C
25
26
26
25
25
25
25
25
27
27
27
26
25
26
26
26
24
26
26
26
  • 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