Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 1 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
27.2°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 27 Aug 2026:

  • Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 7ft (2.1m), 8s period, ENE swell with 572 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 2.1m 8s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 17s period and expected on Thursday (Aug 27) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Wed 2nd Sep)7ft (2.1m) 8s

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


The Lowdown

Alright folks, Rusty here. Let's be straight with you about Kailua Beach. Honestly, for the next 16 days, it's a tough watch. The whole forecast window is dominated by a persistent ENE wind that just won't let up, and the swell is a mix of short-period, weak windswell that's coming from the wrong direction for this spot. Kailua Beach here is a point break that needs an offshore from the SW, and we're getting everything but that. This setup is rough.

Water temps are sitting at 81° which is spot on for this time of year, no surprises there.

We kick off Wednesday the 26th and it's grim. The swell is a tiny 5 ft from the east with a period of only 6 seconds and combined energy of just 171 (weak). You've got a fresh 19 mph wind blowing straight onshore. It's poor surf conditions, full stop. That same pattern holds through Thursday morning and afternoon, and into Friday the 28th where the wind goes cross-onshore, making things even lumpier. There's a solid 4-day gap here with absolutely nothing to recommend.

The weekend of the 29th and 30th? Same story. Slightly bigger swell hitting 6 ft, but with a period of just 6-7 seconds and a wind that's fresh and cross-onshore, the combined energy climbs to 353 (moderate), but the quality is still "fresh cross-onshore and lumpy." Not worth paddling out for.

Moving into the first week of September, the swell actually starts to build. By Monday the 31st, we're seeing 6 ft to 7 ft swell, and the period stretches to 8 seconds. The energy jumps to 532 (moderate). But the wind is still onshore from the ENE, so the surf quality remains poor. On Tuesday the 1st, the wind drops to a moderate 12 mph, but it's still cross-onshore, and the wave state is "moderate cross-onshore and choppy." This is the kind of week where you'd need a big wave board and a lot of patience.

By the second week, things get a little more interesting, but not by much. Around the 5th and 6th of September, the wind eases to a light breeze from the ESE, going cross-onshore and eventually cross-shore. The swell is dropping to 4 ft, but the energy is still around 300 (moderate). On Sunday the 6th afternoon, we finally get a "marginal surf forecast" tag with a score of 1. That's the best we'll see, with light cross-shore winds and small crossing wind ripples. It's not great, but it's the only window where the paddle out might not be a total fight.

Later on, the 9th and 10th of September see a return of stronger onshore winds and a pulse of longer-period swell (12 seconds) from the ENE, but it's still onshore and the surf quality is poor. The energy ramps up to 609 (strong), but for Kailua, that's wasted energy because the wind is straight onshore.

So, the bottom line: there is no standout day here. The only half-decent window is the afternoon of Sunday the 6th, with lighter winds and a score of 1 out of 10. It's marginal. For the rest of the 16 days, this is a blank run. Kailua Beach is a fairly consistent spot, so it's a bit of a rarity to see it this flat and messy. Don't hold your breath; forecasts can change, but right now, it's a no-go.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Warm (max 26°C on Wed afternoon, min 25°C on Wed afternoon). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Warm (max 26°C on Sat afternoon, min 25°C on Sat afternoon). Mainly fresh winds.

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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)
1.5
E
6
1.5
E
6
1.6
ENE
6
1.5
ENE
6
1.5
ENE
6
1.4
ENE
6
1.5
ENE
6
1.6
ENE
6
1.7
ENE
6
1.8
ENE
7
1.8
ENE
7
1.7
ENE
7
1.6
ENE
7
1.8
ENE
7
1.9
ENE
7
2.1
ENE
8
1.9
ENE
8
2
ENE
8
1.8
ENE
8
2.1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
171
176
170
160
155
135
155
212
226
276
303
285
229
290
349
532
458
551
477
545
Wind (km/h)
30
ENE
30
ENE
30
ENE
30
ENE
25
E
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
NE
25
ENE
25
ENE
25
ENE
30
ENE
Wind State
on
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
on
cross-on
High Tide
2:18PM0.84m
1:46AM0.54m
2:39PM0.83m
2:24AM0.59m
2:58PM0.81m
3:03AM0.63m
3:17PM0.77m
3:44AM0.66m
3:35PM0.72m
4:29AM0.68m
3:51PM0.67m
5:22AM0.68m
4:02PM0.61m
Low Tide
8:47PM0.29m
7:45AM0.11m
9:03PM0.26m
8:19AM0.14m
9:21PM0.22m
8:54AM0.19m
9:41PM0.18m
9:31AM0.26m
10:03PM0.15m
10:11AM0.34m
10:30PM0.13m
10:57AM0.42m
11:01PM0.13m
clear
clear
part cloud
clear
rain showers
rain showers
clear
part cloud
part cloud
part cloud
clear
clear
clear
rain showers
part cloud
clear
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:50
6:49
6:47
6:46
 mm
1
1
1
3
1
1
5
Temp °C
26
25
25
25
25
25
25
25
25
26
25
25
26
25
25
26
25
26
26
25
Feels °C
23
23
23
23
23
24
23
22
22
24
22
23
24
23
24
25
24
27
26
25
  • 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