Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas Surf Forecast and Surf Report

Issued: 1 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
27.0° C
0.4° 

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


Keaulanas surf forecast from 6 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 11AM (local time) - 3.5ft (1.0m), 18s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.4m), 16s period, S swell with 1,029 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 11AM (local time) - 1.5ft (0.4m), 14s 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 Thursday (Aug 06) at 11AM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Keaulanas in the next 16 days are 1.4m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Monday (Aug 10) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Thu 6th Aug)1.5ft (0.4m) 14s
Best Surf11AM (Wed 12th Aug)3.5ft (1.0m) 18s
Most Powerful 2AM (Thu 13th Aug)4.5ft (1.4m) 16s

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


The Lowdown

G’day, Rusty here. Let’s take a look at what Keaulanas is serving up over the next couple of weeks.

Overall, it’s a pretty mellow stretch of small, clean waves, with one standout session that’s worth marking on the calendar. Water temp is 81°, which is about normal for the season, so no surprises there. Don’t expect any heavy days; it’s more about quality than size.

Thursday the 6th and Friday the 7th are pretty ordinary. Tiny 1ft waves from the SSW, with a long 14 to 21 second period that’ll keep things lined up, but there’s just no punch. Combined energy is only 81 to 192 (weak), so you’re mostly floating. Winds are light and cross-off or offshore though, so it’s clean, but not really worth paddling out unless you’re desperate.

Saturday the 8th morning is where things start to look a little better. Swell bumps up to 2ft from the SSW, period 18 seconds, and energy jumps to 396 (moderate). Winds are offshore from the ENE at 16 mph, so expect clean little runners. This is the best of the first week, but it’s still small. Saturday afternoon drops off. Sunday the 9th is similar: 2ft, offshore winds, moderate energy – good for a longboard or a foiler.

Monday the 10th through Tuesday the 11th stay in that 2ft to 3ft range, with light cross-off breezes. Energy sits between 218 and 279 (weak to moderate). Conditions are clean, but the waves are just marginal. You’ll get a few, but nothing to write home about.

Now, here’s the standout. Wednesday the 12th morning. Swell hits 3ft from the S, with a solid 18-second period. Combined energy is 857 (moderate to strong). Winds are cross-off from the ENE at 9 mph, keeping it clean. This is the pick of the whole forecast. The long period means better shaped waves and longer gaps between sets, making it easier to get out the back. It’s still only intermediate-friendly at this size, but the quality should be there. Wednesday afternoon stays good but drops off slightly.

From Thursday the 13th onward, it’s a steady decline. Swell drops back to 2ft to 2ft through the rest of the second week, with winds picking up to 19 to 22 mph from the ENE, which creates bumpy, cross-off conditions. Energy drops to between 131 and 342 (weak to moderate). Nothing to get excited about.

There is a little glimmer on Tuesday the 18th morning. Swell is only 2ft from the S, but winds go glassy from the ESE at 3 mph. That’s about as clean as it gets. Energy is 212 (weak), so it’ll be tiny, but if you want a glassy dawn session on a log, that could be fun.

Overall, the only day that really stands out is Wednesday the 12th morning. Everything else is small and clean but pretty forgettable. Don’t expect any big surf, but the long-period swells will give you some nice, lined-up little waves if you pick your sessions right.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu afternoon. Warm (max 28°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Sun morning). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
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)
1
1
1
1
1
1
2
0
1
2
2
1
1
1
1
1
2
2
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSW
14
0.4
SSW
14
0.6
SSW
14
0.4
SW
21
0.4
SW
20
0.4
SSW
19
0.6
SSW
18
0.5
SW
18
0.6
SSW
17
0.5
SW
16
0.5
S
18
0.8
SSW
16
0.6
SSW
15
0.7
SSW
15
0.7
SSW
15
0.7
SSW
14
0.8
SSW
14
0.8
S
20
1
S
18
1.1
S
18
1.4
S
16
Wave Graph
Metric surfscale
Energy kJ
81
80
138
115
99
148
221
154
202
130
156
288
186
234
240
218
269
485
635
749
1029
Wind (km/h)
5
ESE
15
ENE
15
ENE
10
E
20
ENE
20
ENE
25
ENE
25
ENE
25
ENE
20
ENE
25
ENE
20
ENE
15
ENE
15
E
15
ENE
15
E
15
E
15
ENE
15
ENE
20
ENE
20
ENE
Wind State
cross-off
off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
11:13AM0.61m
12:19PM0.67m
10:17PM0.21m
1:14PM0.73m
00:29AM0.20m
2:02PM0.77m
1:39AM0.23m
2:45PM0.79m
2:33AM0.27m
3:24PM0.79m
3:22AM0.32m
4:00PM0.76m
4:10AM0.37m
Low Tide
3:37AM0.07m
9:32PM0.21m
9:20PM0.17m
6:00AM0.03m
9:41PM0.14m
7:02AM0.01m
10:06PM0.12m
7:57AM0.01m
10:31PM0.10m
8:49AM0.02m
10:56PM0.10m
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clear
clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:07
7:06
7:05
7:05
 mm
2
Temp °C
27
27
26
27
28
26
27
28
25
27
27
26
28
28
26
28
29
26
27
28
26
Feels °C
30
30
27
28
28
26
26
27
25
28
27
27
29
29
27
29
29
26
28
28
26
  • 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 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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