Ko Olina Resort surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 pm Thursday 21 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Ko Olina Resort surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ko Olina Resort sea temperature is
25.9° C
(Which is slightly warmer than usual)

How big are the waves at Ko Olina Resort today?

The current surf forecast for Ko Olina Resort at 9PM is: 0.6m 15s primary swell from a South-southwest direction and 0.4m 13s secondary swell from a Southeast direction (forecast issued at 01:00pm May 21). An open ocean swell of 2.3m 9s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (21 May)1.5ft (0.5m)16s
Afternoon (21 May)1.5ft (0.5m)16s
Evening (21 May)2ft (0.6m)15s

Table - waves today at Ko Olina Resort. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 22°C on Fri night). Mainly strong winds.

Thu
21
Friday
22
Saturday
23
Sun
24
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
2 AM
5 AM
8 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.5
S
16
0.5
S
16
0.5
S
16
0.6
SSW
15
0.6
S
15
0.6
S
15
0.6
S
15
0.5
S
15
0.4
S
18
0.4
S
18
0.4
S
18
0.4
S
18
0.5
S
17
0.6
S
16
0.6
S
16
0.6
S
16
0.6
S
16
0.7
S
16
0.7
S
15
0.7
S
15
0.6
S
15
0.6
S
15
0.6
S
14
0.6
S
14
Wave Graph
Metric surfscale
Energy kJ
134
131
126
172
157
157
157
109
107
98
97
97
138
188
183
183
181
236
215
212
157
155
144
131
Wind (km/h)
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
ENE
30
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
8:01AM0.20m
8:22PM0.66m
10:01AM0.25m
9:15PM0.60m
11:31AM0.34m
10:06PM0.53m
Low Tide
12:10PM0.14m
4:27AM0.12m
1:30PM0.22m
5:03AM0.11m
3:27PM0.28m
5:32AM0.09m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:06
7:07
7:07
Temp °C
25
25
24
23
23
23
23
23
24
25
24
23
23
23
22
23
24
24
24
23
23
22
23
23
21
20
19
18
19
19
18
18
19
20
19
18
20
19
18
18
19
19
19
19
19
18
20
18
Swell 1
Height (m)
Direction
Period (s)
0.5
S
16
0.5
S
16
0.5
S
16
0.6
SSW
15
0.6
S
15
0.6
S
15
0.6
S
15
0.5
S
15
0.5
S
14
0.5
S
14
0.5
S
14
0.5
S
14
0.5
S
17
0.6
S
16
0.6
S
16
0.6
S
16
0.6
S
16
0.7
S
16
0.7
S
15
0.7
S
15
0.7
NNW
14
0.7
NW
13
0.7
NW
13
0.7
NW
13
Energy kJ
134
131
126
172
157
157
157
109
107
98
93
93
138
188
183
183
181
236
215
212
175
183
175
170
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
13
0.4
SE
13
0.4
SE
13
0.4
SE
13
0.4
SE
13
0.4
SE
13
0.4
SSE
12
0.4
SE
12
0.4
NW
10
0.4
S
18
0.4
S
18
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
10
0.4
NNW
10
0.4
NNW
10
0.5
NNW
16
0.6
NNW
15
0.7
NNW
14
0.6
S
15
0.6
S
15
0.6
S
14
0.6
S
14
Energy kJ
60
44
44
43
42
40
59
37
27
98
97
46
46
45
43
42
41
142
146
186
157
155
144
131
Swell 3
Height (m)
Direction
Period (s)
0.4
NW
10
0.3
NNW
10
0.3
NNW
10
0.3
NNW
10
0.3
NNW
9
0.3
NNW
10
0.4
NW
10
0.4
NW
10
0.4
S
18
0.4
NNW
11
0.4
NNW
11
0.4
S
18
0.4
SSW
13
0.4
SSW
13
0.4
SSW
13
0.4
SSW
13
0.4
NNW
16
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.2
SSE
11
Energy kJ
24
19
18
18
17
19
25
25
101
45
46
97
60
59
58
58
103
26
26
25
25
24
24
11
Wind waves
Height (m)
Direction
Period (s)
2.2
E
8
2.2
E
8
2.3
E
8
2.3
E
8
2.2
E
9
2.2
E
9
2.1
E
9
2
E
8
1.9
ENE
8
2.1
ENE
8
2.1
ENE
8
2.2
ENE
8
2.1
ENE
8
2.1
ENE
8
2
ENE
8
1.9
ENE
8
2
ENE
8
2.3
ENE
8
2.2
ENE
8
1.9
ENE
8
1.8
ENE
8
1.7
ENE
8
1.7
ENE
8
1.8
ENE
8
Energy kJ
666
650
736
772
715
732
653
579
534
589
578
602
575
560
521
471
497
688
612
504
446
385
376
418
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
1
1
1
1
3
3
1
1
1
1
3
3
1
1
3
1
2
1
2
Distance (km)
157
159
292
285
159
156
17
17
160
174
171
171
11
156
157
171
179
171
157
21
159
18
10
14
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
3
3
2
3
Best forecast wave conditions in United States
Rating
(10 max)
1
1
2
2
3
3
3
2
3
3
3
2
2
3
2
3
3
2
2
3
2
3
2
3
Header Global
Rating
(10 max)
5
4
5
7
7
7
6
5
7
5
5
6
7
8
7
6
5
5
5
5
5
6
5
5
  • 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

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