Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Issued: 1 am 04 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 4 Jul 2026:

  • Most powerful swell: Tuesday 7 Jul, 5AM (local time) - 7ft (2.2m), 8s period, ENE swell with 551 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 2.2m 8s and forecast to arrive on Tuesday (Jul 07) at 5AM. 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 20s period and expected on Saturday (Jul 04) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 7th Jul)7ft (2.2m) 8s

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


Updates in  hr  min  s Forecast update imminent

Alright, let’s talk about Kailua Beach (Oʻahu). The next couple weeks? Honestly, it’s a tough stretch. The trade winds are locked in and blowin’ strong, and the swell is all short-period, wind-affected slop. We’re lookin’ at a long run of poor conditions right through till mid-month.

Startin’ on Saturday the 4th, we got a 1.7m ENE swell with a short 8-second period and a combined energy of 354. The problem is the wind is howlin’ from the ENE at 19 mph straight onshore. It’s gonna be blown-out and messy. No quality for the paddle crowd. Water temp’s about 79°, which is average for this time of year.

Sunday the 5th and into Monday the 6th, the wind actually picks up to 22 mph and the swell bumps to 2.0m, but it’s cross-onshore and lumpy (energy 437 and 454). Just poor conditions. Tuesday the 7th stays onshore and rough with 2–2.1m swell and energy hittin’ 539 on Monday afternoon, but with no clean wind, it’s a total mess.

From Wednesday the 8th through the end of the first week and deep into the second, it’s the same story: solid ENE trades at 16–22 mph, mostly onshore or cross-onshore, and swell heights stayin’ between 1.7m and 2.1m with periods of only 7–8 seconds. The combined energy is moderate (between 280 and 539), but the wind wrecks any chance of a rideable face. This setup is more suited to kite surfing than paddle surfing, especially with those steady winds.

There’s a drop in size around Saturday the 18th – swell down to 1.2m to 1.0m, period still 8 seconds, and energy fallin’ to 214–314. But the wind is still cross-onshore or onshore, so it’s still not worth paddlin’ out.

Bottom line: there’s no good surf options in this 16-day window. It’s a classic summer trade-wind grind for Kailua Beach. When there’s energy, the wind ruins it. When the wind eases a little, the swell disappears. A blank stretch like this ain’t unusual around here in July. Keep an eye out – forecasts can change.

Rusty

Short Range Forecast

Light rain (total 3mm), mostly falling on Sun morning. Warm (max 25°C on Sat afternoon, min 24°C on Sat morning). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Wed afternoon, min 24°C on Tue morning). Mainly fresh winds.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
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)
1.7
ENE
8
1.7
ENE
8
1.7
ENE
7
2
ENE
7
1.9
ENE
7
2
ENE
7
2
ENE
8
2.2
ENE
8
2.1
ENE
7
2
ENE
8
2.1
ENE
8
2.1
ENE
7
1.7
ENE
7
1.7
ENE
7
1.9
ENE
7
1.8
ENE
7
1.9
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
2
ENE
7
Wave Graph
Metric surfscale
Energy kJ
330
339
310
418
387
406
447
532
495
459
508
444
327
319
338
353
369
301
358
420
435
Wind (km/h)
30
ENE
25
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
E
25
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
Wind State
on
on
cross-on
cross-on
on
on
cross-on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
5:38PM0.78m
5:44AM0.46m
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
Low Tide
10:17AM0.20m
00:42AM0.30m
10:55AM0.29m
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
clear
clear
part cloud
rain showers
part cloud
clear
clear
clear
rain showers
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:54
5:54
5:54
5:54
5:54
<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
7:16
 mm
1
2
7
Temp °C
24
25
24
24
24
24
24
25
24
24
24
24
24
25
24
25
25
24
25
25
24
Feels °C
22
23
22
22
21
21
20
22
21
20
21
21
21
23
21
24
23
22
24
24
23
Swell 1
Height (m)
Direction
Period (s)
0.3
SSW
21
0.4
SSW
20
0.4
SSW
19
0.4
SSW
18
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
SSW
12
0.3
S
12
0.2
S
12
0.2
S
12
0.2
S
12
0.2
S
12
Energy kJ
89
128
123
104
102
86
84
76
71
70
66
63
36
35
34
30
27
11
11
12
11
Swell 2
Height (m)
Direction
Period (s)
0.3
NW
12
0.3
NW
12
0.3
ESE
9
0.3
NW
11
0.2
NNW
11
0.1
NW
10
0.1
SE
9
0.1
SE
9
0.1
S
18
0.1
S
8
0.1
S
10
0.1
S
10
0.1
S
9
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
Energy kJ
24
23
16
19
12
4
3
3
6
1
2
2
1
1
1
5
5
4
18
17
37
Swell 3
Height (m)
Direction
Period (s)
0.3
SSW
16
0.2
SSW
15
0.3
NW
12
0.2
SSW
14
0.2
SSW
13
0.2
SSW
13
0.1
NW
10
0.1
NW
10
0.1
S
8
0.1
N
9
0.1
S
18
0.1
S
18
0.1
S
8
0.1
S
7
0.1
S
18
0.1
W
14
0.1
W
15
Energy kJ
49
22
21
20
17
17
4
4
1
2
6
6
1
1
6
4
4
Wind waves
Height (m)
Direction
Period (s)
1.7
ENE
8
1.7
ENE
8
1.7
ENE
7
2
ENE
7
1.9
ENE
7
2
ENE
7
2
ENE
8
2.2
ENE
8
2.1
ENE
7
2
ENE
8
2.1
ENE
8
2.1
ENE
7
1.7
ENE
7
1.7
ENE
7
1.9
ENE
7
1.8
ENE
7
1.9
ENE
7
1.7
ENE
7
1.9
ENE
7
2.1
ENE
7
2
ENE
7
Energy kJ
330
339
310
418
387
406
447
532
495
459
508
444
327
319
338
353
369
301
358
420
435
Nearest Offshore or Glassy
Rating
(10 max)
3
1
3
3
2
2
2
1
1
2
2
1
2
1
1
1
1
1
1
2
2
Distance (km)
41
43
41
46
52
46
48
123
46
48
51
41
41
46
41
41
50
42
41
48
41
Best forecast wave conditions in Oahu
Rating
(10 max)
3
2
3
3
2
2
2
2
2
2
2
2
1
1
1
1
1
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
2
2
2
2
3
2
2
4
2
2
4
1
2
4
1
2
3
Header Global
Rating
(10 max)
4
5
9
7
5
5
8
7
5
5
9
7
9
5
7
5
5
4
8
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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