Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas Surf Forecast and Surf Report

Issued: 1 pm 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
26.5° C
0.2° 

Keaulanas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Keaulanas surf forecast from 24 Jul 2026:

  • Best quality surf: Friday 24 Jul, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with offshore winds.
  • Most powerful swell: Saturday 25 Jul, 8PM (local time) - 3.5ft (1.1m), 18s period, SSW swell with 790 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 5AM (local time) - 3ft (0.9m), 18s period with SSW swell.

Best Forecast Surf Conditions for Keaulanas this week:

The surf forecast for Keaulanas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 24) at 5AM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 0.8m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Keaulanas in the next 16 days are 1.1m 18s and forecast to arrive on Saturday (Jul 25) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Saturday (Jul 25) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 24th Jul)3ft (0.9m) 18s
Best Surf 5AM (Fri 24th Jul)3ft (0.9m) 18s
Most Powerful 8PM (Sat 25th Jul)3.5ft (1.1m) 18s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the Keaulanas stretch.

Right off the bat, we’re looking at a pretty sluggish start. The first few days are hanging on to some small, long-period SSW groundswell, but it’s compromised by the conditions. The water temp is sitting at a comfortable 80°, which is pretty much spot on average for this time of year, so nothing freaky there. The first real standout doesn’t land until Sunday, July 26th – that morning session is the pick of the early run. We’ve got a clean 3-foot SSW swell, pumping in with a long 16-second period, along with a steady offshore ENE breeze at 16 mph. The combined energy is moderate (506), so it won’t be a thumper, but it’ll be clean and lined up. Keaulanas is a beach and reef setup, and that long period groundswell likes a reef, so it’s a good match. The wind is offshore, so expect clean faces.

After Sunday, things drop off again. The swell gets smaller, the energy fades into the 200s and 100s, and the wind picks up into the fresh breeze range. The Wednesday, July 29th afternoon session is worth a mention mostly because of the wind – it goes glassy, with a risk t-storm but only 3 mph. At 2 feet on a 14-second period, it’s small but clean for a sneaky session. The combined energy is weak (212).

From Friday, August 1st right through to Thursday, August 7th, it’s a pretty grim run. The swell drops to 2 feet and below, the energy dips into two-digit territory (down to 26 by August 4th), and the wind is mostly cross-off or fresh. The last few days, August 6th and 7th, see glimmers of flat calm or glassy wind, but the swell is tiny – 1 feet to 2 feet – with energy in the dozens. Surfable, but barely. It’s a long stretch of quiet water.

So, the honest truth: the Sunday, July 26th morning is your best bet. After that, it’s a waiting game. The second week is a write-off for any real size. Keep your eyes on the charts, but for now, that Sunday is the one to pencil in.

- Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sun afternoon, min 24°C on Sun night). Wind will be generally light.

Thu
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
2
2
2
2
3
3
1
2
2
1
2
1
1
1
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSW
20
1
SSW
18
0.7
SSW
18
0.9
SSW
17
0.8
SSW
16
0.8
SSW
19
1
SSW
18
1
SSW
18
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
15
0.7
SSW
14
0.7
SSW
14
0.7
SSW
13
0.5
SSW
13
0.7
S
14
0.7
S
14
0.8
S
14
Wave Graph
Metric surfscale
Energy kJ
395
616
329
428
299
502
716
662
469
452
416
288
284
213
189
187
98
203
200
246
Wind (km/h)
30
ENE
20
ENE
30
ENE
30
ENE
20
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
15
ENE
15
ENE
30
ENE
15
ENE
15
NE
25
NNE
20
NE
20
NNE
5
NE
20
ESE
Wind State
cross-off
cross-off
cross-off
off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
glassy
cross-off
High Tide
1:33PM0.64m
00:26AM0.22m
2:12PM0.67m
1:26AM0.22m
2:47PM0.69m
2:10AM0.23m
3:19PM0.71m
2:49AM0.25m
3:50PM0.72m
3:28AM0.27m
4:18PM0.72m
4:07AM0.30m
Low Tide
5:08AM0.10m
9:51PM0.20m
6:03AM0.09m
10:04PM0.18m
6:52AM0.07m
10:23PM0.17m
7:35AM0.05m
10:44PM0.15m
8:15AM0.04m
11:05PM0.15m
8:53AM0.04m
11:26PM0.14m
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:14
7:14
7:14
7:13
7:13
 mm
1
8
Temp °C
27
25
26
27
25
26
27
25
26
27
25
27
27
25
26
27
26
26
27
26
Feels °C
23
23
24
24
24
24
24
25
24
25
24
26
25
23
27
27
27
28
32
27
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  • 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 Keaulanas Surf forecast

The above surf forecast table for Keaulanas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Keaulanas can be found by selecting the local surf guide option on the grey menu. Our Keaulanas 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 (Keaulanas) 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 Keaulanas 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.

Keaulanas is 7 km (4 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.

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