Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 1 pm 27 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 28 Aug 2026:

  • Most powerful swell: Thursday 3 Sep, 8PM (local time) - 6ft (1.8m), 12s period, ENE swell with 882 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 1.8m 12s and forecast to arrive on Thursday (Sep 03) 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 16s period and expected on Thursday (Aug 27) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Thu 3rd Sep)6ft (1.8m) 12s

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


The Lowdown

Right, grab a coffee. So, I’ve been staring at the charts for Kailua Beach, and, well… I gotta be straight with you, it’s a tough one. We’re in for a real blank spell here. For the next two and a half weeks, from now through to Friday the 11th of September, the conditions are just not playing ball.

Kailua Beach is a classic point break, exposed to the NE, and that’s where most of the swell is coming from, which is spot on. But the problem is the wind. Most of the time we’ve got a fresh breeze howling from the ENE – onshore or cross-onshore – just ruining any chance of a clean face. The water temp is sitting at a nice 81°, which is pretty average for this time of year, so at least you won’t be freezing while you’re getting chopped up.

Let’s run through it. Thursday the 27th into Friday is a write-off. Small, weak swell at 5ft to 5ft with a period of only 6 seconds – that’s just wind chop. The wave energy is weak to moderate (173–238). Just forget it.

We head into the weekend and it gets a bit bigger, 5ft up to 6ft, but the period is still rubbish at 7 seconds, and that wind is fresh and cross-onshore. The combined energy climbs into the 300s, but it’s just lumpy, messy surf. Not worth paddling out for.

That same pattern holds through the start of next week. Monday the 31st sees the swell hit 7ft, and the period finally stretches to 8 seconds. The energy is moderate to strong now (431–480), but the wind is onshore. Tuesday and Wednesday are the same story – cross-onshore wind, choppy conditions, and the wave comment says “poor surf conditions” every time.

There is a slight shift around Thursday the 3rd of September. The swell period jumps to 11 seconds, which is proper groundswell, and the swell direction swings to the east, which is bang-on for Kailua. The combined energy hits 905, which is solid. But again, the wind is cross-onshore in the morning and onshore in the afternoon. It’s still labelled as poor surf. Frustrating, I know.

Then, from the 4th right through to the 7th, we get a run of mornings where the comments change to “marginal surf forecast or questionable tide conditions” with a score of just 1 or 2 out of 10. On the 4th, the swell is 6ft at 12 seconds from the E, and the wind is onshore from the NNE. The energy is very strong (1066). This is the closest we get to something halfway decent, but with that wind, it’s a gamble. On Saturday the 5th, it’s bigger at 7ft with a 12-second period, and energy over 1200, but again, onshore wind. By Monday the 7th, the wind drops to a light breeze from the NE (on), with a 6ft, 9-second swell. The energy is moderate (570). That Monday morning is your absolute best bet of the whole window, but even then, it’s just marginal.

From Tuesday the 8th onward, the swell drops back down to 4ft and the wind is messy again. A couple of days later, around the 11th, there’s a 5ft, 11-second swell from the E with a cross-shore wind, giving a score of 1. Again, not going to set the world on fire.

Honestly, for a break that is fairly consistent, this is a poor run. The swell is there, but the wind is just relentless. For anyone wanting to charge some overhead peaks, the 7ft to 7ft days on the 4th and 5th of September would be for experts only, but with that wind, they’d be a battle. These beachy conditions look more interesting for a kite surfer than a paddle surfer during most of this period. Keep an eye on it – these long-range forecasts can change, and it tends not to stay this ugly for long.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Thu afternoon, min 25°C on Thu afternoon). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Sun night. Warm (max 26°C on Sun afternoon, min 25°C on Sun night). Mainly fresh winds.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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)
1.4
ENE
6
1.5
E
6
1.5
ENE
6
1.4
ENE
6
1.7
ENE
6
1.6
ENE
6
1.8
ENE
7
1.9
ENE
7
1.8
ENE
7
1.8
ENE
7
1.7
ENE
7
2.1
ENE
7
2.1
ENE
8
2
ENE
8
1.9
ENE
8
1.9
ENE
8
1.8
ENE
8
1.6
ENE
8
1.6
NE
8
1.2
E
13
Wave Graph
Metric surfscale
Energy kJ
160
182
160
118
212
207
268
348
316
316
241
431
480
483
488
500
434
318
314
468
Wind (km/h)
30
ENE
30
ENE
30
ENE
30
ENE
30
E
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
E
Wind State
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
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
6:31AM0.67m
3:59PM0.56m
Low Tide
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
12:04PM0.50m
11:40PM0.13m
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
rain showers
rain showers
part cloud
clear
rain showers
clear
rain showers
clear
clear
rain showers
<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>
6:51
6:50
6:50
6:49
6:47
6:46
6:45
 mm
1
2
2
1
3
Temp °C
26
25
25
25
25
25
25
25
25
26
25
25
26
25
26
26
26
26
26
26
Feels °C
24
23
23
23
22
22
22
22
22
23
23
23
25
23
26
26
26
27
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)
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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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