Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas Surf Forecast and Surf Report

Issued: 1 pm 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
26.4° 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 14 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 5PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with offshore winds.
  • Most powerful swell: Monday 20 Jul, 2PM (local time) - 2.5ft (0.8m), 16s period, S swell with 330 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 8PM (local time) - 3ft (0.9m), 14s period with SW 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 Monday (Jul 13) at 8PM. The primary swell is predicted to be 0.9m and 14s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Keaulanas in the next 16 days are 0.8m 16s and forecast to arrive on Monday (Jul 20) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Saturday (Jul 18) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 13th Jul)3ft (0.9m) 14s
Best Surf 5PM (Tue 14th Jul)2.5ft (0.8m) 14s
Most Powerful 2PM (Mon 20th Jul)2.5ft (0.8m) 16s

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


The Lowdown

Alright, Rusty here. Let’s break it down.

The next couple of weeks are all about Keaulanas. It’s not pumping huge, but it’s steady, and there are plenty of clean windows with that offshore flow. Water temp is sitting at 80°, right around normal for this time of year – nothing weird, just your standard warm summer water.

We start on Monday the 13th. The afternoon is looking good with a clean 3ft swell out of the southwest and a 15-second period. That’s real groundswell, and with ENE winds blowing offshore at 16 mph, it’ll be well groomed. The combined energy is 405 (moderate), so there’s some push. It’s not big, but it’s clean and lined up.

Tuesday the 14th keeps it going. The morning has 3ft from the south-southwest, with lighter offshore winds at 9 mph, making for a really tidy setup. The afternoon steps it up – 2ft from the west with a 16-second period, and the energy jumps to 582 (moderate). That afternoon session is the pick of the first few days – glassy, offshore, and a little extra grunt.

Wednesday the 15th and Thursday the 16th stay similar. Swells sit around 2ft to 3ft, mostly from the west, with light cross-offshore winds. It stays clean, but the energy drops through Thursday afternoon. By Friday the 17th, things start to fade. The swell drops to 2ft, and while the wind is still cross-offshore, the quality takes a hit. Saturday the 18th and Sunday the 19th are small and weak – Sunday morning has energy down to just 99 (weak). That’s a real lull.

But don’t lose hope. Monday the 20th brings a new south swell, 2ft with a 16-second period, and those ENE offshore winds are back. The energy builds to 374 by the afternoon. It’s not big, but it’s clean and groomed. Then Tuesday the 21st is the standout of the whole run. The swell pushes up to 3ft out of the south, with a 14-second period, and the morning has only a light 6 mph offshore wind. The energy is 445 (moderate), and it’s clean. That’s the one to mark.

The middle of the second week – Wednesday the 22nd through Friday the 24th – keeps things interesting. Wednesday afternoon has 3ft from the south with a 13-second period, 529 energy (moderate), and gentle offshore winds. Friday morning the 24th is also strong, with 2ft from the south-southwest, 18-second period, and 540 energy (moderate), with a steady 12 mph offshore breeze. That’s a really clean, punchy setup for the more experienced crew.

After that, it tails off again. Saturday the 25th and Sunday the 26th have smaller swell, still clean in the mornings, but nothing special. By Monday the 27th, the wind swings around to the south and we get cross-onshore and even a risk of thunderstorms – that’s the end of the good run. Tuesday the 28th is flat and glassy, with only 1ft and next to no energy.

So, to sum it up: the best sessions are Tuesday afternoon the 14th, Tuesday morning the 21st, and Friday morning the 24th. If I had to pick one, I’d go with Tuesday the 21st morning – 3ft south swell, light offshores, clean, consistent. That’s the one you don’t want to miss.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue morning. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light.

Mon
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
2
2
3
2
2
2
3
2
1
1
1
1
2
0
1
1
1
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
W
15
0.8
W
15
0.8
W
15
0.8
SSW
16
0.7
W
14
0.7
W
14
0.7
SSW
14
0.6
W
14
0.6
SSW
16
0.6
SSW
14
0.6
SSW
13
0.6
SSW
14
0.5
SSW
12
0.5
S
13
0.4
S
18
0.5
S
18
0.6
S
16
Wave Graph
Metric surfscale
Energy kJ
309
261
236
257
229
291
283
314
203
203
200
144
196
145
141
158
81
81
106
152
190
Wind (km/h)
25
ENE
15
ENE
15
NE
20
ENE
15
ENE
10
ESE
10
SE
15
E
15
E
20
E
20
ENE
20
E
25
ENE
20
ENE
25
ENE
25
ENE
20
ENE
20
ENE
25
ENE
10
NE
20
ENE
Wind State
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
off
off
off
off
off
High Tide
3:45PM0.84m
3:22AM0.24m
4:27PM0.83m
4:16AM0.26m
5:06PM0.79m
5:13AM0.30m
5:42PM0.73m
6:12AM0.34m
6:15PM0.65m
7:16AM0.38m
6:44PM0.56m
8:28AM0.42m
7:08PM0.48m
9:44AM0.47m
Low Tide
11:16PM0.12m
8:47AM-0.02m
11:49PM0.11m
9:36AM0.01m
00:21AM0.10m
10:26AM0.06m
00:52AM0.10m
11:17AM0.14m
1:21AM0.10m
12:14PM0.22m
1:50AM0.10m
1:25PM0.30m
2:19AM0.10m
clear
clear
rain showers
rain showers
clear
part cloud
light rain
rain showers
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
6:00
6:00
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:17
7:16
7:16
7:16
7:16
7:15
7:15
 mm
1
1
2
1
Temp °C
27
25
25
26
25
26
26
25
27
27
25
27
28
25
26
27
25
26
27
25
26
Feels °C
25
25
26
26
25
28
28
26
28
27
25
27
27
25
25
25
24
25
25
24
25
  • Map Icons:
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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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