Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas 48 hour detailed Surf Forecast

Issued: 7 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
27.1° C
0.4° 

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


How big are the waves at Keaulanas today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 2.5ft (0.8m), 19s period with S swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 3.5ft (1.1m), 18s period with S swell.
  • Evening surf: Evening surf (12 Aug, local time) - 3.5ft (1.0m), 17s period with S swell.

The current surf forecast for Keaulanas at 1PM is: 1.0m 18s primary swell from a South direction and 1.0m 13s secondary swell from a South direction (forecast issued at 07:00am August 12). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (12 Aug)2.5ft (0.8m)19s
Afternoon (12 Aug)3.5ft (1.1m)18s
Evening (12 Aug)3.5ft (1.0m)17s

Table - waves today at Keaulanas. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Mainly fresh winds.

Wednesday
12
Thursday
13
Friday
14
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
3
3
2
3
3
3
3
4
4
4
3
2
2
3
3
3
3
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
19
0.8
S
19
0.9
S
18
1.1
S
18
1.1
S
18
1
S
17
1.1
S
16
1.4
S
16
1.4
S
16
1.4
S
16
1.3
S
16
1.3
S
16
1.3
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.1
S
14
1.1
S
14
1.1
S
14
1
S
14
1
S
14
Wave Graph
Metric surfscale
Energy kJ
369
455
509
749
741
600
651
1029
1017
1004
868
836
773
644
636
636
636
619
503
496
496
405
399
Wind (km/h)
15
ENE
15
ENE
20
ENE
20
ENE
30
ENE
25
ENE
20
ENE
20
NE
15
NE
20
NE
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
20
NE
25
ENE
30
ENE
30
ENE
30
ENE
25
NE
25
NE
Wind State
off
off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
3:22AM0.32m
4:00PM0.76m
4:10AM0.37m
4:33PM0.71m
4:57AM0.42m
5:03PM0.63m
Low Tide
8:49AM0.02m
10:56PM0.10m
9:38AM0.06m
11:20PM0.09m
10:27AM0.12m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:02
 mm
Temp °C
25
26
27
28
27
25
25
25
25
26
28
28
27
26
25
25
25
26
27
28
27
26
26
Feels °C
26
27
26
26
25
24
25
25
25
25
26
25
25
26
24
24
25
25
25
26
25
25
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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