Kailua Beach Surf Break

Lat Long: 21.41° N 157.74° W

Kailua Beach Surf Forecast and Surf Report

Issued: 7 am 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kailua Beach sea temperature is
26.2° C
0.1° 

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 17 Jul 2026:

  • Most powerful swell: Saturday 18 Jul, 11PM (local time) - 6ft (1.9m), 8s period, ENE swell with 395 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 1.9m 8s and forecast to arrive on Saturday (Jul 18) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 15s period and expected on Tuesday (Jul 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sat 18th Jul)6ft (1.9m) 8s

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


The Lowdown

Alright, surfers, Rusty here. Let's talk about the local outlook.

Right off the bat, we're looking at a long, dry spell. The finder is calling for Kailua Beach, but the conditions are just not working for us. The predominant swell is coming from the ENE, but the wind is stuck in a cross-onshore groove, making everything choppy and messy. The first recommendation doesn't come until the 21st of July, and even then, it's a tough sell.

Let's be honest, the first week and a half is a write-off. The combined energy is weak, around 131 to 300, and the swell is a short, choppy 4ft to 6ft. The wind is a constant cross-onshore breeze, ruining any chance of a clean face. The water temp is a pleasant 79°F, which is about average for the time of year, but you won't be enjoying it.

We get a tease on the 21st of July. A long-period 16-second groundswell rolls in from the east, with a 2ft face. The energy jumps to 262, and the wind is straight onshore, which is at least clean for the takeoff, but the size is tiny. It's a poor surf conditions call, so don't get your hopes up.

The real action, but not for the faint of heart, kicks off on the 27th of July. That's when the heavy stuff arrives. The combined energy rockets into the thousands, hitting 3813 on the 27th morning, and blowing up to 5992 on the 28th. We're talking 10ft to 13ft of solid ENE groundswell with a period of 13 to 15 seconds. This is expert-only territory. The wind is onshore, which means the face will be bumpy, but the raw power is undeniable. The 28th afternoon gets a marginal rating, but with 13ft faces and a 12-second period, it's a heavy, dangerous beast. This is not a spot for anyone but the most experienced.

The 29th of July sees a sudden drop back to a 5ft N swell, but the wind finally lightens up to a light breeze. The energy drops to 496, which is weak, but it’s a glimmer of hope for a clean session after the storm.

The standout here is the 28th of July afternoon. The swell is a massive 13ft from the NE, with a 12-second period. The wind is a moderate breeze from the NE, which is onshore. The energy is a staggering 4420. It's a brute. For a point break, that long-period groundswell will set up nicely, but it will be a challenge. The crowds will be likely there, but only the hardcore will be out.

Honestly, the best advice for the next two weeks is to wait. The 27th through 29th of July is the window, but it's for the big wave chargers. The rest of the time is a fight against the wind. For the average surfer, this is a skip. The setup looks more interesting for kite surfing than paddle surfing for most of the period.

Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu morning, min 24°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Tue morning. Warm (max 25°C on Sun afternoon, min 24°C on Sun morning). Wind will be generally light.

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
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)
1.2
ENE
7
1.1
ENE
6
1.3
ENE
6
1.2
ENE
6
1.3
ENE
7
1.5
E
6
1.5
E
6
1.7
ENE
7
1.8
ENE
8
1.6
ENE
8
1.5
ENE
8
1.4
ENE
8
1.3
ENE
8
1.3
ENE
7
1.3
ENE
7
0.5
E
16
0.7
E
15
0.7
E
14
0.7
E
13
0.7
E
13
0.7
E
12
Wave Graph
Metric surfscale
Energy kJ
131
89
130
101
158
176
182
286
384
302
284
232
191
181
167
124
213
191
171
168
144
Wind (km/h)
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
25
ENE
20
ENE
20
E
25
ENE
25
ENE
30
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:41PM0.89m
4:16AM0.50m
5:09PM0.83m
5:18AM0.51m
5:32PM0.75m
6:30AM0.52m
5:48PM0.68m
8:04AM0.54m
5:54PM0.61m
10:10AM0.59m
5:15PM0.56m
11:42AM0.65m
Low Tide
9:22AM0.06m
11:27PM0.29m
10:03AM0.16m
11:59PM0.27m
10:43AM0.26m
00:30AM0.24m
11:24AM0.37m
1:03AM0.23m
12:17PM0.48m
1:41AM0.22m
2:38PM0.55m
2:27AM0.21m
3:25AM0.19m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
rain showers
rain showers
clear
rain showers
part cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
5:58
5:58
5:58
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:14
7:14
 mm
2
3
1
1
1
Temp °C
25
25
25
25
25
25
25
25
24
24
25
25
25
25
25
24
25
25
25
25
25
Feels °C
26
25
25
25
25
25
24
24
22
23
24
24
25
24
25
24
25
24
25
24
25
  • 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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