Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
27.2°C
0.3° 

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, 8PM (local time) - 7.5ft (2.3m), 9s period, ENE swell with 791 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 9s and forecast to arrive on Thursday (Sep 17) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 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 8PM (Thu 17th Sep)7.5ft (2.3m) 9s

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


The Lowdown

Alright, let's switch gears and talk in feet and Fahrenheit for those who think that way.

Well, I'm gonna level with you, it's a bit of a tough stretch ahead. Looking at Kailua Beach, we’ve got a solid run of days, but the wind and conditions are just not playing ball for a proper paddle session for most of it. The water temp is sitting at a warm 81°, which is about average for this time of year, so no surprises there.

Starting from this Sunday morning, the 13th, we’ve got small swell around 3 feet coming from the NNE, but it’s blown out by a 9 mph onshore wind. That pattern keeps up right through the week. Monday the 14th and Tuesday the 15th are much the same story: small, wind-affected waves with poor conditions. The swell energy is weak, only in the 100-200 range, so there’s just no power or shape to work with. We see a bit more size creeping in by Wednesday the 16th with 4 feet swell, but the onshore winds are still pumping at 16-19 mph. By Thursday the 17th, the swell jumps to 8 feet, and the combined energy hits a strong 545, but with risk of thunderstorms and that stiff onshore wind, it's a messy and challenging prospect – definitely not for beginners.

Heading into the second week, the pattern doesn’t let up. From the 18th to the 21st, we’ve got consistent 6 to 8 feet swell from the east, but it’s accompanied by fresh, cross-onshore winds that are just going to leave the surface lumpy and choppy. The energy is moderate to strong, ranging from 364 to 648, but without clean wind, it's hard to get excited. The only real standout, and I mean the only one, happens on Tuesday the 22nd. The swell drops to 7 feet, but look at that period – a very long 13 seconds from the east, and the combined energy absolutely pumps up to 1433. That’s serious, powerful groundswell. Now, the catch is the wind is still onshore at 16-19 mph, and Kailua is a point break so it can handle that long-period energy, but the wind will make it rough. This window on the 22nd and into Wednesday the 23rd (with energy at 1447) has the most potential, but it's a gamble with the wind.

After that, from Thursday the 24th through to Monday the 28th, the swell holds around 6 to 8 feet, but the wind remains a persistent onshore or cross-onshore issue, with fresh breezes keeping things messy. Honestly, for most of this outlook, the consistent onshore wind and poor surf conditions mean the setup looks more interesting for kite surfing than paddle surfing. There’s no clean, glassy window on the cards.

Rusty

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 15mm), heaviest on Thu night. Warm (max 27°C on Fri afternoon, min 25°C on Wed night). Mainly fresh winds.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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)
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
1.2
ENE
5
1.3
ENE
6
1.5
ENE
6
1.7
ENE
6
2.3
ENE
7
2.4
ENE
8
2.5
ENE
8
2.4
ENE
8
2.1
E
8
2.1
E
8
2
E
7
2
E
7
1.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
138
112
123
82
69
51
40
52
78
111
154
253
545
690
717
644
545
518
427
400
427
Wind (km/h)
15
ENE
15
ENE
15
ENE
20
ENE
20
NE
15
ENE
20
ENE
20
ENE
25
ENE
25
NE
30
NE
30
NE
35
NE
30
ENE
30
ENE
30
ENE
30
ENE
25
E
30
ENE
25
E
30
ENE
Wind State
on
on
on
cross-on
on
on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
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
11:15AM0.68m
Low Tide
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
3:03AM0.26m
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
part cloud
cloud
part cloud
<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
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
6:35
6:34
6:32
6:31
6:30
6:30
 mm
1
2
2
9
1
Temp °C
25
25
25
25
26
25
26
26
26
26
26
26
26
26
26
26
27
26
26
26
26
Feels °C
26
25
25
25
27
26
27
27
27
26
26
26
25
25
26
26
26
25
26
25
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