Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 am 23 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 24 Aug 2026:

  • Most powerful swell: Tuesday 25 Aug, 2PM (local time) - 6.5ft (2.0m), 7s period, E swell with 393 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 2.0m 7s and forecast to arrive on Tuesday (Aug 25) 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 0.6m 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 2PM (Tue 25th Aug)6.5ft (2.0m) 7s

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


The Lowdown

Alright folks, Rusty here. Let's talk about what's cookin' for Kailua Beach over the next couple of weeks. I gotta be straight with you, it's a rough stretch. The forecast is a long, hard slog of onshore and cross-onshore winds, mostly from the ENE, that are just trashing what little swell is out there. The combined wave energy is weak, often in the low 100s to 300s (349), and the short, choppy periods around 6-7 seconds mean there's no real power or shape.

We're looking at a solid 14-day blank run here. From Sunday, August 23rd, right through to Saturday, September 5th, every single session is marked as "poor surf conditions." The winds are a fresh breeze, 19 mph or more, just pinning the surf flat and messy. This isn't a time to paddle out; this is a time to check the wind forecasts and hope they change. The water temp is sitting at 81°F, which is about average for the time of year, so at least you won't freeze while you're sitting there watching the bumps.

It's not until Sunday, September 6th, that we see a flicker of hope. The wind finally eases up to a gentle breeze, with a light E 9 mph cross-on in the morning, swinging to a glassy NE 9 mph onshore in the arvo. That's a game-changer. The swell jumps to 8 ft from the NE with a much longer period of 11 seconds. The combined energy is a solid 1539, which is moderate to strong, so there's some serious juice in the water. This is the standout of the whole outlook. The size is on the edge for beginners, but for intermediate and up, it's a proper wave. The issue is the direction: the guidance says the optimum swell is from the NE, and this is NE, so it's a perfect match. But the caveat is the long period groundswell from the NE on a point break like Kailua Beach can be a bit straight and fast. Still, with that glassy afternoon wind, the morning session on the 6th is the best we've got, and it's not even close.

Monday, September 7th, looks reasonable too. The wind is light and clean from the NNE 6 mph in the morning, and the swell is down to a more manageable 5 ft from the ENE, with a 10-second period. The energy is moderate (546). It's a cleaner, smaller option for the day after the big one. The crowds at Kailua are "sometimes" an issue, but on a Monday with a bit of a cleanup, you might get some fun ones without too much hustle.

So, to wrap it up: the first two weeks are a write-off. Don't even bother. Point your eyes to Sunday, September 6th, for the biggest and best swell of the forecast, and Monday the 7th for a cleaner, smaller follow-up. The rest is for the kite surfers, not the paddle surfers. Hang in there.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Sun morning, min 24°C on Tue night). Mainly fresh winds.

Days 4-6 Weather Summary

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

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
7
1.8
ENE
6
1.9
ENE
6
1.8
E
6
1.8
E
6
1.7
E
7
2
E
7
1.9
E
7
1.7
ENE
7
1.6
ENE
7
1.6
ENE
6
1.5
ENE
6
1.4
ENE
6
1.3
ENE
6
1.4
ENE
6
1.2
ENE
7
1.7
ENE
6
1.8
ENE
7
1.5
ENE
7
1.5
ENE
7
1.6
ENE
7
Wave Graph
Metric surfscale
Energy kJ
349
271
280
276
267
270
382
355
277
232
195
165
155
147
150
135
226
290
198
200
223
Wind (km/h)
35
ENE
35
ENE
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
25
ENE
Wind State
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
on
High Tide
1:10PM0.78m
11:42PM0.41m
1:34PM0.81m
00:29AM0.45m
1:57PM0.83m
1:09AM0.50m
2:18PM0.84m
1:46AM0.54m
2:39PM0.83m
2:24AM0.59m
2:58PM0.81m
3:03AM0.63m
3:17PM0.77m
3:44AM0.66m
Low Tide
8:28PM0.36m
5:55AM0.14m
8:26PM0.35m
6:35AM0.11m
8:34PM0.32m
7:11AM0.10m
8:47PM0.29m
7:45AM0.11m
9:03PM0.26m
8:19AM0.14m
9:21PM0.22m
8:54AM0.19m
9:41PM0.18m
part cloud
clear
part cloud
part cloud
clear
thunderstorm
clear
clear
part cloud
part cloud
part cloud
clear
rain showers
part cloud
clear
part cloud
rain showers
part cloud
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:53
6:52
6:52
6:51
6:50
6:50
 mm
2
1
1
1
Temp °C
26
26
26
26
26
26
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
25
25
25
26
26
27
25
25
23
21
23
23
24
24
23
24
22
23
23
22
22
  • 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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