Keaulanas Surf Break

Lat Long: 21.38° N 158.15° W

Keaulanas 48 hour detailed Surf Forecast

Issued: 7 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Keaulanas sea temperature is
27.3°C
0.3° 

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 (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 17s period with SSW swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.1m), 17s period with SSW swell.
  • Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 16s period with SSW swell.

The current surf forecast for Keaulanas at 11AM is: 1.1m 17s primary swell from a South-southwest direction (forecast issued at 07:00am September 18). An open ocean swell of 0.8m 7s is not directed at the surf break, a second open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Sep)3.5ft (1.1m)17s
Afternoon (18 Sep)3.5ft (1.1m)17s
Evening (18 Sep)3.5ft (1.1m)16s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Fri morning, min 25°C on Sat night). Mainly fresh winds.

Friday
18
Saturday
19
Sunday
20
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
2
1
1
1
1
1
1
1
1
0
1
1
1
2
1
2
1
0
0
0
1
0
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)
1.1
SSW
18
1.1
SSW
17
1.1
SSW
17
1
SSW
17
1.1
SSW
17
1.1
SSW
16
1.1
SSW
16
1.1
SSW
16
1
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
16
0.9
SSW
16
1
SSW
16
0.7
SW
16
0.7
S
16
0.8
S
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
1
S
15
Wave Graph
Metric surfscale
Energy kJ
759
742
725
601
675
667
651
635
525
512
414
425
425
469
276
257
334
452
329
304
375
380
447
Wind (km/h)
25
ENE
25
E
25
E
30
ENE
25
E
25
ENE
25
ENE
25
ENE
25
E
25
ENE
30
ENE
30
E
25
E
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
Wind State
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
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
High Tide
10:11AM0.54m
11:24AM0.56m
11:58PM0.21m
12:17PM0.58m
Low Tide
1:44AM0.17m
8:14PM0.18m
3:50AM0.18m
8:11PM0.16m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
 mm
Temp °C
26
27
29
29
28
26
26
26
26
26
28
28
27
26
26
25
25
26
28
28
27
26
25
Feels °C
26
27
27
27
27
25
26
26
26
25
26
26
26
25
26
25
25
26
26
26
25
26
24
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keaulanas surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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