Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.4° 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 22 Jul 2026:

  • Most powerful swell: Monday 27 Jul, 11PM (local time) - 5.5ft (1.7m), 14s period, E swell with 1,147 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 1.7m 14s and forecast to arrive on Monday (Jul 27) at 11PM. 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 Tuesday (Jul 21) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Mon 27th Jul)5.5ft (1.7m) 14s

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


The Lowdown

Alright, this is Rusty. Let's talk about what's on the menu for the next couple of weeks.

Right off the bat, for Kailua Beach, it's a tough stretch. The onshore trade winds are on the nose or cross-on for the vast majority of the forecast period, which is a real bummer. The water temperature is sitting right around 80°F, which is pretty much average for this time of year, nothing weird there.

The first real chance of anything surfable doesn't show up until Monday, July 27th, and even then it's a marginal call. You'll see a new groundswell push in from the east, around 5 feet, but the period is a solid 14 seconds. That's a long-period swell, which brings a lot of energy, but it's breaking straight at a beach break. You'd want a point or reef for that kind of power. The wind is onshore, so it’s not going to be clean.

Tuesday, July 28th, is the best of a bad bunch. The swell eases slightly to about 6 feet from the east, still with a decent 13-second period, and the wind turns light from the north-northeast (9 mph). That's the best wind we see all period, and it's onshore, but it's light enough that it might be workable. This is your only real window to consider paddling out, but keep expectations low.

After that, it's back into the grinder of poor conditions. The wind picks up again, and the swell gets messy and choppy. We get a big pulse of swell around August 1st and 2nd, with heights pushing 8 feet, but the wind is howling at 19 mph, cross-on, making it a complete washout. That much swell with that wind is more of a kitesurfing setup than a paddle-surfing one.

Honestly, with the consistency of the trades being so persistent, this is a pretty blank run. Keep an eye on the Tuesday morning window (July 28th) for a possible quick session, but otherwise, this stretch is a write-off.

Rusty

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed morning. Warm (max 25°C on Tue morning, min 24°C on Wed night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Warm (max 25°C on Fri morning, min 24°C on Fri morning). Mainly fresh winds.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
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
1
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)
1.3
ENE
7
1.1
NE
7
1.3
ENE
7
1.6
ENE
7
1.5
ENE
6
1.5
ENE
6
2
ENE
7
1.8
ENE
7
2.1
ENE
7
1.9
ENE
7
2
ENE
7
2
ENE
7
2
ENE
8
1.9
NE
8
2.1
ENE
8
1.1
E
15
1.3
E
16
1.5
E
16
1.5
E
14
1.5
E
14
1.7
E
14
Wave Graph
Metric surfscale
Energy kJ
158
118
162
232
183
145
330
268
385
358
412
440
452
423
531
563
827
1060
928
915
1130
Wind (km/h)
20
ENE
20
ENE
20
E
35
ENE
30
ENE
30
E
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
25
NE
25
ENE
30
ENE
20
ENE
25
ENE
25
ENE
Wind State
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
on
on
High Tide
10:10AM0.59m
5:15PM0.56m
11:42AM0.65m
12:30PM0.71m
1:05PM0.75m
1:36PM0.79m
11:19PM0.41m
2:05PM0.83m
00:19AM0.43m
2:32PM0.85m
1:04AM0.45m
Low Tide
2:38PM0.55m
2:27AM0.21m
3:25AM0.19m
4:27AM0.17m
5:23AM0.14m
9:11PM0.40m
6:10AM0.11m
9:11PM0.38m
6:50AM0.08m
9:23PM0.37m
clear
clear
clear
rain showers
part cloud
rain showers
rain showers
clear
clear
rain showers
clear
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:00
6:00
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:14
7:14
7:13
7:13
7:12
7:12
 mm
1
1
1
2
2
2
Temp °C
25
25
25
25
25
24
25
25
24
25
25
24
25
25
24
24
25
24
24
25
24
Feels °C
26
25
25
24
23
23
23
22
21
23
23
21
24
23
22
22
24
22
23
24
23
  • 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
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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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