Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas 48 hour detailed Surf Forecast

Issued: 1 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
27.0° C
0.2° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 1.5ft (0.5m), 16s period with SW swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 1.5ft (0.5m), 16s period with SW swell.
  • Evening surf: Evening surf (19 Aug, local time) - 1.5ft (0.5m), 16s period with SW swell.

The current surf forecast for Keaulanas at 10AM is: 0.5m 16s primary swell from a Southwest direction and 0.6m 12s secondary swell from a South direction (forecast issued at 01:00am August 19). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (19 Aug)1.5ft (0.5m)16s
Afternoon (19 Aug)1.5ft (0.5m)16s
Evening (19 Aug)1.5ft (0.5m)16s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Wed morning). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
1
2
2
1
1
1
1
2
2
2
2
1
2
2
2
2
2
2
1
1
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
13
0.6
S
12
0.6
S
12
0.5
SW
16
0.5
SW
16
0.4
SSW
16
0.4
SSW
16
0.5
SW
16
0.6
SSW
16
0.6
SSW
17
0.6
SSW
18
0.6
SW
18
0.7
SW
18
0.6
SSW
17
0.6
SSW
17
0.7
SW
16
0.7
SW
16
0.8
SSW
17
0.8
SSW
17
0.7
SW
17
0.7
SW
17
0.7
SW
16
0.8
SSW
16
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
155
103
103
129
130
100
103
127
175
195
207
249
316
200
184
271
278
360
368
291
281
261
322
322
Wind (km/h)
15
ENE
15
ENE
10
ENE
10
ENE
10
ESE
10
ENE
15
ENE
15
ENE
10
ENE
10
ENE
10
ENE
0
NNW
5
NW
10
NNW
5
NNE
5
E
5
E
5
ESE
5
E
5
S
5
SSW
0
S
5
NE
10
ENE
Wind State
cross-off
off
cross-off
cross-off
cross-off
off
off
off
off
off
off
glassy
cross
cross-off
off
glassy
glassy
glassy
cross-off
cross-on
on
glassy
glassy
cross-off
High Tide
9:54AM0.53m
11:13AM0.55m
12:17PM0.58m
Low Tide
1:22AM0.12m
2:02AM0.13m
3:07AM0.14m
9:33PM0.20m
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:59
6:58
 mm
Temp °C
25
24
25
26
27
27
26
26
25
25
25
27
28
27
27
26
26
25
26
27
27
27
27
27
Feels °C
26
25
27
28
28
29
28
28
26
27
27
30
31
30
31
30
30
29
30
31
30
31
31
29
  • 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 

FREE! Surf-Forecast.com widget for your website

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