Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Issued: 7 am 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.3° 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: Tuesday 7 Jul, 8AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 632 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 Tuesday (Jul 07) at 8AM. 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 Monday (Jul 06) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Tue 7th 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, I’ve gone through what’s coming up for Kailua Beach, and I’ll be honest—it’s pretty grim. The trade winds are just hammering the coast, and for a spot that needs clean NE swell, we’re getting nothing but lumps.

From Monday the 6th of July, it’s on. Hard ENE trades at 22 mph, shoving into a 7ft swell. The energy’s there—moderate, at 472—but with that wind blowing onshore, it’s just a mess. Choppy, lumpy, poor conditions. That pattern sticks. Tuesday the 7th, Wednesday the 8th, it’s all the same: onshore or cross-onshore winds, short period swell around 7 or 8 seconds, and the wave comment is always “poor.” The swell hangs around 7ft to 8ft, too much push for the wind to allow anything to form up.

Through the first week and into the second, nothing changes. Thursday the 9th, Friday the 10th, all the way through to Saturday the 11th and Sunday the 12th—same ENE winds, same lumpy, onshore slop. The wave energy picks up a bit here and there, hitting 611 on Tuesday the 7th, but with a 8ft swell and short period, it won’t break with any shape. The water temp is about 79°, pretty normal for this time of year, so at least you don’t need a wetsuit.

After the first week, the swell intensity drops a little, but the wind doesn’t let up. Monday the 13th through Wednesday the 15th, we see it back down to 5ft to 6ft, but the wind is still a steady 16 mph from the ENE, and it’s either onshore or cross-onshore. The period drops to 7 seconds, making it even weaker. The energy falls into the low 200s, barely moderate. The “poor surf conditions” label stays stamped on every session.

By the last week—around Thursday the 16th through Tuesday the 21st—the swell dips even lower, around 3ft to 5ft, and the period is down to 6 seconds. The wind is still a problem. There’s a flicker on Saturday the 18th afternoon where the swell period jumps to 9 seconds and the energy hits 656, a sign of better quality, but the wind is 19 mph onshore, so it’s just a blown-out mess. The last few days, Sunday the 19th through Tuesday the 21st, are tiny and choppy.

There’s no standout here. Not a single window of clean waves. The whole 16-day forecast is a blank run. For a spot like Kailua Beach that’s usually fairly consistent, this is an unusual stretch of dud conditions. If you’re a kite surfer, this steady 12-22 mph cross-onshore wind and decent swell might work, but for a paddle surfer? Leave the boards at home. Forecasts can change, but this run is as poor as I’ve seen it.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Warm (max 25°C on Mon afternoon, min 24°C on Mon morning). Mainly strong winds.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 25°C on Thu morning, min 24°C on Thu morning). Mainly fresh winds.

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
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)
2.1
ENE
7
2.1
ENE
8
2.1
ENE
8
2.3
ENE
8
2.1
ENE
8
2.2
ENE
7
2
ENE
7
2
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
7
2.1
ENE
7
2.1
ENE
7
2.2
ENE
7
2.2
ENE
7
2.2
ENE
7
2.1
ENE
7
2.1
ENE
7
2.1
ENE
8
2.1
ENE
8
2
ENE
8
Wave Graph
Metric surfscale
Energy kJ
465
491
508
606
480
542
428
417
456
440
390
444
456
542
542
516
475
475
522
545
441
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
25
ENE
30
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
30
ENE
Wind State
on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
on
on
on
cross-on
on
cross-on
High Tide
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
2:16PM0.96m
00:30AM0.44m
Low Tide
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
9:22PM0.38m
part cloud
clear
rain showers
rain showers
clear
part cloud
clear
clear
rain showers
clear
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
rain showers
rain showers
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
7:15
7:15
 mm
1
1
2
4
2
2
2
1
1
Temp °C
24
25
24
24
24
24
25
25
24
25
25
24
24
25
24
24
25
24
25
25
24
Feels °C
21
22
21
19
21
20
23
23
21
23
23
22
23
24
22
21
23
22
23
23
22
Swell 1
Height (m)
Direction
Period (s)
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
SSW
12
0.3
S
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
0.2
SSW
18
0.3
SW
16
0.3
SW
16
0.3
SW
16
Energy kJ
84
76
71
70
66
63
36
35
34
30
27
11
11
12
11
34
30
30
41
40
39
Swell 2
Height (m)
Direction
Period (s)
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
SE
8
0.1
S
9
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
SSE
13
0.2
SSE
12
0.2
SSE
12
Energy kJ
3
3
6
2
2
2
6
3
2
5
5
4
18
17
37
11
11
13
16
14
14
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
10
0.1
NW
10
0.1
NW
9
0.1
NW
9
0.1
N
9
0.1
S
18
0.1
S
8
0.1
S
9
0.1
S
23
0.1
S
8
0.1
W
14
0.1
S
15
0.1
W
14
0.1
S
14
0.1
S
11
0.1
SW
23
Energy kJ
4
4
3
3
2
6
1
2
10
1
4
4
4
4
2
21
Wind waves
Height (m)
Direction
Period (s)
2.1
ENE
7
2.1
ENE
8
2.1
ENE
8
2.3
ENE
8
2.1
ENE
8
2.2
ENE
7
2
ENE
7
2
ENE
7
2.1
ENE
7
2
ENE
7
1.9
ENE
7
2.1
ENE
7
2.1
ENE
7
2.2
ENE
7
2.2
ENE
7
2.2
ENE
7
2.1
ENE
7
2.1
ENE
7
2.1
ENE
8
2.1
ENE
8
2
ENE
8
Energy kJ
465
491
508
606
480
542
428
417
456
440
390
444
456
542
542
516
475
475
522
545
441
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
2
2
1
1
1
1
1
1
1
2
2
2
2
2
2
2
Distance (km)
122
123
41
122
122
46
46
51
46
46
46
41
41
50
46
46
43
41
41
48
41
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
1
1
1
1
1
1
2
2
2
2
3
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
2
4
2
2
4
1
2
1
1
2
3
3
2
3
3
3
3
Header Global
Rating
(10 max)
7
5
5
9
8
9
7
7
6
6
6
5
5
4
5
5
4
9
7
5
7
  • 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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