Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Issued: 1 pm 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.4° C

Normal for this time of year

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 6 Jul 2026:

  • Most powerful swell: Monday 6 Jul, 2PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 600 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 2.3m 8s and forecast to arrive on Monday (Jul 06) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 16s period and expected on Sunday (Jul 05) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Mon 6th Jul)7.5ft (2.3m) 8s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let’s be straight with you. If you’re looking at Kailua Beach on Oahu, I’ve got to be honest with you – the entire 16-day outlook is a tough one. We’ve got a long stretch of poor surf conditions ahead, and the forecast doesn’t offer any standout windows for a proper paddle session.

The overall pattern is dominated by a persistent ENE swell, but it’s got some serious issues. The wind is the main problem. For the first week, from Sunday afternoon, July 5th, all the way through to Monday, July 13th, we’re looking at a nasty onshore to cross-onshore breeze from the ENE, blowing at 15 to 22 mph. That’s a fresh breeze, and it’s going to put a choppy, lumpy lid on the ocean. The swell is coming in consistently at 6 ft to 7 ft, but with a short period of only 7 to 8 seconds, it’s gonna be a bumpy, disorganised mess. The combined swell energy is moderate, ranging from 286 to 565 (moderate wave energy), but it’s all wind-driven chop. The water temp is sitting at 80°, which is about average for the time of year, but that’s the only nice thing I can say.

The middle of the period, from Monday, July 14th, to Thursday, July 16th, sees the swell drop a little, to around 5 ft to 6 ft, but the wind stays on it. The pattern is the same: onshore and cross-onshore moderate breezes, keeping the waves messy. The combined energy drops a bit, with values around 210 to 290 (weak to moderate wave energy), but it’s still not surfable.

Then we get a slight change into the second week. On Friday, July 17th, and Saturday, July 18th, the swell picks back up to 6 ft to 7 ft, with a period of 8 seconds. The combined energy even spikes to 664 (moderate wave energy) on Friday morning. But the wind is still on it, blowing 15 to 19 mph from the ENE. The vibe is the same: poor surf conditions. The wind finally shifts to just “onshore” on the 17th, but it’s still a strong breeze.

The final stretch, from Sunday, July 19th, through Monday, July 20th, is more of the same. Swell around 6 ft to 6 ft, with a 7-second period, and a moderate to fresh onshore wind. The combined energy is weak to moderate, at 284 to 346.

So, the truth is, there are no good surf options in this 16-day window. Kailua Beach is a point break that’s exposed to the NE swell, which is the right direction, but the wind is just wrong. The entire period is a write-off for a decent paddle. The setup, with the strong onshore wind and decent size swell, might actually look more interesting for kite surfing than paddle surfing right now. It’s a long blank run, but sometimes that’s the name of the game here. Forecasts can change, so keep an eye on it, but this one’s a tough pill to swallow.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Mon night. Warm (max 25°C on Sun afternoon, min 24°C on Sun afternoon). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Sat morning. Warm (max 25°C on Wed afternoon, min 24°C on Wed afternoon). Mainly fresh winds.

Sun
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
ENE
7
2
ENE
7
2.2
ENE
7
2.2
ENE
8
2.1
ENE
8
2.2
ENE
8
2.1
ENE
8
2.2
ENE
7
2.2
ENE
7
2.1
ENE
7
1.9
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
2.2
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
376
400
518
546
508
560
508
485
498
444
379
456
417
379
286
379
475
489
475
405
408
Wind (km/h)
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
Wind State
on
cross-on
on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
cross-on
cross-on
on
on
on
High Tide
6:01PM0.74m
7:14AM0.48m
6:24PM0.68m
9:08AM0.54m
6:48PM0.62m
10:50AM0.63m
7:11PM0.56m
11:56AM0.74m
12:47PM0.83m
9:36PM0.45m
1:33PM0.91m
11:18PM0.44m
Low Tide
1:15AM0.26m
11:45AM0.39m
1:54AM0.22m
1:12PM0.49m
2:40AM0.17m
4:10PM0.54m
3:32AM0.13m
4:28AM0.08m
8:34PM0.45m
5:24AM0.03m
8:53PM0.41m
6:18AM-0.01m
clear
clear
clear
clear
rain showers
rain showers
clear
rain showers
rain showers
clear
clear
clear
clear
rain showers
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
5:54
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:16
7:16
7:16
7:16
7:15
7:15
 mm
1
1
1
2
3
3
3
2
Temp °C
25
24
24
24
24
24
24
24
24
25
24
25
25
24
25
25
25
24
25
24
24
Feels °C
22
21
20
20
21
20
20
20
21
22
21
23
23
22
26
25
25
22
24
22
22
Swell 1
Height (m)
Direction
Period (s)
0.4
SSW
18
0.4
SSW
16
0.4
SSW
16
0.4
SSW
15
0.4
SSW
15
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.3
SSW
14
0.3
SSW
13
0.3
SSW
13
0.3
S
12
0.3
SSW
12
0.2
S
12
0.2
S
12
0.2
S
12
0.2
S
12
0.2
SSW
19
0.2
SSW
18
0.3
SW
18
0.4
SW
16
Energy kJ
102
86
84
76
71
70
65
63
36
35
34
27
30
11
11
12
11
34
31
48
68
Swell 2
Height (m)
Direction
Period (s)
0.2
NNW
11
0.1
NW
10
0.1
SE
9
0.1
SE
9
0.1
S
18
0.1
N
9
0.1
S
10
0.1
S
10
0.1
S
18
0.1
S
8
0.1
S
8
0.1
S
16
0.1
S
16
0.1
S
15
0.1
SW
21
0.1
SW
21
0.2
SSW
19
0.2
S
12
0.2
S
12
0.2
S
13
0.2
S
13
Energy kJ
12
4
3
3
6
2
2
2
6
1
1
5
5
4
18
17
37
11
11
13
13
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
13
0.2
SSW
13
0.1
NW
10
0.1
NW
10
0.1
NW
9
0.1
NW
9
0.1
N
9
0.1
W
18
0.1
S
18
0.1
S
8
0.1
S
8
0.1
S
8
0.1
S
9
0.1
S
8
0.1
S
8
0.1
W
13
0.1
W
18
Energy kJ
7
17
4
4
3
3
2
6
6
1
1
1
1
1
1
3
6
Wind waves
Height (m)
Direction
Period (s)
1.9
ENE
7
2
ENE
7
2.2
ENE
7
2.2
ENE
8
2.1
ENE
8
2.2
ENE
8
2.1
ENE
8
2.2
ENE
7
2.2
ENE
7
2.1
ENE
7
1.9
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
2.2
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
8
Energy kJ
376
400
518
546
508
560
508
485
498
444
379
456
417
379
286
379
475
489
475
405
408
Nearest Offshore or Glassy
Rating
(10 max)
3
2
1
2
2
1
1
2
2
1
1
1
1
1
1
1
2
2
2
2
2
Distance (km)
51
48
122
125
41
122
122
46
50
52
46
46
50
41
41
41
41
46
48
41
41
Best forecast wave conditions in Oahu
Rating
(10 max)
3
2
2
2
2
1
1
1
2
1
1
1
2
2
2
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
2
2
2
4
3
2
4
1
2
4
1
1
4
2
2
3
3
Header Global
Rating
(10 max)
6
7
8
7
5
5
9
6
9
9
5
6
5
4
5
5
4
5
4
4
5
  • 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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