Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas Surf Forecast and Surf Report

Issued: 7 am 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
26.4° C
0.3° 

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


Keaulanas surf forecast from 12 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: Sunday 12 Jul, 11AM (local time) - 3ft (0.9m), 16s period, SW swell with 376 kJ wave energy.
  • Next surfable swell (1★+): Sunday 12 Jul, 8PM (local time) - 3ft (0.9m), 16s 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 Sunday (Jul 12) at 8PM. The primary swell is predicted to be 0.9m and 16s 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 0.9m 16s and forecast to arrive on Sunday (Jul 12) at 11AM. 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 8s period and expected on Sunday (Jul 12) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 12th Jul)3ft (0.9m) 16s
Best Surf 5PM (Tue 14th Jul)2.5ft (0.8m) 14s
Most Powerful11AM (Sun 12th Jul)3ft (0.9m) 16s

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


Alright, folks, Rusty here. Let’s take a close look at what’s coming up for the next couple of weeks. We’ve got one spot on the radar, and it’s a bit of a mixed bag, so let’s break it down.

The overall pattern is a long, drawn-out run of small to moderate swell with a lot of cross-off wind. It’s not a classic week by any stretch, but there are a couple of windows where things line up nicely. The water is sitting at 80°F, which is about 0.5°F above the long-term average – so pretty much normal for this time of year, no surprises there.

We kick off on Sunday the 12th with some waist-high groundswell rolling in. The swell is coming from the SW at 3 ft, with a very long period of 16 seconds. That’s proper groundswell energy, but it’s being worked over by a fresh ENE breeze at 19 mph. The combined energy is moderate at 425, but the wind is making it messy. Sunday afternoon cleans up a bit with the wind turning offshore, but it’s still marginal – not a day to get too excited about.

Monday the 13th is similar. The swell drops a touch to 3 ft from the SSW, still with a long period. The wind is still cross-off in the morning, but the afternoon shifts to a moderate offshore breeze. The combined energy is 368, and it’s labelled as “good surf conditions” – that’s a small step up. It’s rideable, but nothing to write home about.

Now, here’s the standout. Tuesday the 14th. The morning has a light offshore breeze from the ENE at just 6 mph, with a 3 ft SW swell at 14 seconds. The combined energy climbs to 429, and conditions are clean. But the real gem is Tuesday afternoon. The wind drops to a gentle 9 mph offshore, the swell shifts to a clean 2 ft from the W with a 16-second period, and the combined energy jumps to 582 – that’s the strongest reading in the whole run. The forecast says “very good surf conditions.” This is the best on offer. Keaulanas is a consistent spot, and with that clean offshore wind and a long-period W swell, the waves should be well-shaped, glassy, and fun. It’s intermediate-friendly at that size, but those long-period sets will have some punch.

Wednesday the 15th through the weekend is a bit of a slog. The wind stays cross-off, the swell hangs around 2 ft to 3 ft, but the energy drops off a cliff. The combined energy falls to the 170-236 range by Saturday the 18th and Sunday the 19th, with the forecast calling it “surfable but very ordinary.” It’s not great, but it’s not flat.

We get a little pulse again around Monday the 20th and Tuesday the 21st. The swell picks back up to 3 ft from the S on Tuesday morning, with a 15-second period and a combined energy of 411. The wind is a gentle offshore breeze, so it’s clean. That’s a solid runner-up for the best window, but it doesn’t quite match the quality of that Tuesday the 14th afternoon.

Looking further out into the second week, things get a bit more promising but less certain. Around Thursday the 24th, we see a 2 ft swell from the SSW with a very long 20-second period – that’s a real groundswell. The combined energy is 419, and the wind is a moderate offshore 16 mph. The size is small, but that period is special. It’ll be clean and likely lined up nicely at Keaulanas, but it’s a long-range call, so treat it with cautious optimism.

The 26th and 27th of July continue the trend of clean offshore winds and moderate groundswell, with the 27th morning looking particularly tidy with a gentle offshore and a 3 ft S swell.

Overall, the standout is Tuesday the 14th of July afternoon – that’s your day. The rest of the run is a mix of small, clean waves and ordinary cross-off slop, but there’s enough consistency here to keep the hope alive. Keaulanas is a consistent spot, so it won’t stay poor for long.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue morning. Warm (max 26°C on Sun morning, min 23°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun afternoon, light winds from the ENE by Tue morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 27°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light.

Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
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
1
0
0
2
2
2
3
2
2
2
3
1
1
2
1
1
2
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
15
0.8
SSW
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
0.6
SSW
17
1
SSW
11
0.9
SSW
11
0.6
SSW
16
0.6
S
14
0.6
S
13
0.7
SSW
14
0.6
SSW
12
Wave Graph
Metric surfscale
Energy kJ
376
367
353
326
272
261
239
257
229
291
283
314
203
203
247
186
196
134
130
210
121
Wind (km/h)
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
10
NE
10
ENE
15
ENE
15
E
10
SE
10
E
10
E
20
E
20
E
20
ENE
20
ENE
20
ENE
5
ENE
10
E
20
E
15
ENE
Wind State
cross-off
off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:01PM0.83m
2:25AM0.22m
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
Low Tide
10:41PM0.13m
7:56AM-0.03m
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
part cloud
part cloud
part cloud
clear
part cloud
clear
rain showers
rain showers
clear
clear
rain showers
rain showers
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<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>
7:17
7:17
7:17
7:16
7:16
7:16
7:16
 mm
1
1
1
1
Temp °C
26
26
25
25
26
24
25
26
25
26
26
25
26
27
25
27
27
26
27
28
26
Feels °C
25
24
24
23
24
23
26
27
25
27
27
26
26
27
25
27
27
27
29
28
26
  • 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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