Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
27.0°C
0.2° 

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 29 Aug 2026:

  • Most powerful swell: Tuesday 1 Sep, 8PM (local time) - 7ft (2.1m), 8s period, ENE swell with 555 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 Tuesday (Sep 01) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 14s period and expected on Saturday (Aug 29) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Tue 1st 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 take a look at what’s on the table for Kailua Beach over the next couple of weeks.

Right off the bat, I gotta be straight with you – this is a tough outlook. For the entire 16-day window, we are looking at a run of surf that, frankly, just isn't cooperating. The wind is the main culprit, blowing from the ENE and staying onshore or cross-onshore for the vast majority of the period. That means the surface is going to be lumpy, choppy, and generally messy. The swell is rolling in from the ENE, but with that wind tearing it apart, it's just not going to line up. The combined wave energy is moderate, but it's all wasted energy with those conditions.

We kick things off from Saturday, August 29th, right through the first week. The swell height sits around 6 ft to 7 ft, but the period is short, between 6 and 8 seconds. That's a weak, wind-driven chop, not a clean swell. The wind is a steady 18 to 22 mph from the ENE. It’s a classic case of poor conditions across the board. The water temp is about average for this time of year, so no surprises there.

There is a bit of a shift around Thursday, September 3rd, where the swell direction tries to come more from the east, and the period jumps to 12 seconds. But the wind is still on it, and the energy is still moderate. It’s not enough to change the game.

The real interesting part comes on Monday, September 7th. The swell jumps up to 8 ft to 10 ft, with the combined energy spiking into the strong range. That's a lot of water moving. But the period is still short (8-10 seconds), and that ENE wind is still blowing onshore. For a point break like Kailua Beach, that size with a short period and onshore wind is going to be a wild, messy beast. It's expert-only territory at that size, and the conditions will make it a real challenge just to get out.

The best chance we get is on Wednesday, September 9th. The wind drops to a gentle breeze from the NE, and we get a 7 ft swell. It's a marginal call, but the lighter wind might give us a window. The energy is moderate. It’s not a standout, but it’s the only time the score even gets close.

After that, the second week settles back into the same pattern: 5 ft to 6 ft swell, short periods, and onshore or cross-onshore winds. It's a long, flat, and messy run. There's simply no standout session in this forecast. The set-up is more interesting for kite surfing than paddle surfing with that constant cross-onshore wind and short-period chop.

Rusty, signing off.

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Warm (max 26°C on Sat morning, min 25°C on Fri night). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Wed night. Warm (max 26°C on Wed morning, min 25°C on Mon night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
ENE
6
1.8
ENE
6
1.7
ENE
6
2
ENE
7
1.8
ENE
7
2
ENE
7
1.7
ENE
7
1.9
ENE
7
2
ENE
7
2
ENE
8
1.9
ENE
8
2.1
ENE
8
2
ENE
8
1.7
ENE
8
1.8
ENE
8
1.9
ENE
7
1.7
ENE
8
0.8
E
12
1.1
E
8
Wave Graph
Metric surfscale
Energy kJ
188
252
233
394
325
362
285
376
423
471
441
541
496
384
362
379
322
196
161
Wind (km/h)
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
NE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
NE
20
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
on
on
High Tide
3:03AM0.63m
3:17PM0.77m
3:44AM0.66m
3:35PM0.72m
4:29AM0.68m
3:51PM0.67m
5:22AM0.68m
4:02PM0.61m
6:31AM0.67m
3:59PM0.56m
8:17AM0.68m
Low Tide
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
12:04PM0.50m
11:40PM0.13m
00:39AM0.15m
rain showers
part cloud
part cloud
part cloud
part cloud
clear
rain showers
rain showers
clear
clear
clear
rain showers
rain showers
clear
rain showers
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:50
6:49
6:47
6:46
6:45
6:45
 mm
1
1
1
2
4
1
4
Temp °C
25
26
25
25
26
26
25
26
26
25
25
25
25
26
26
25
25
25
25
Feels °C
23
24
22
22
23
23
22
24
24
23
23
23
23
26
25
24
23
23
24
  • Map Icons:
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  • 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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