Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 am Tuesday 26 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Castles Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles Beach sea temperature is
25.0° C
(Which is normal for this time of year)

How big are the waves at Castles Beach today?

The current surf forecast for Castles Beach at 10AM is: 1.9m 7s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a South direction (forecast issued at 07:00am May 26). An open ocean swell of 0.2m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (26 May)6.5ft (2.0m)7s
Afternoon (26 May)6.5ft (2.0m)7s
Evening (26 May)7ft (2.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Tue afternoon. Warm (max 24°C on Thu afternoon, min 22°C on Wed morning). Mainly strong winds.

Tuesday
26
Wednesday
27
Thursday
28
Fri
29
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
2 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)
2.1
ENE
7
2
ENE
7
1.9
ENE
7
2
ENE
7
2.2
ENE
7
2.2
ENE
7
2
ENE
7
1.9
ENE
7
1.8
ENE
7
1.7
ENE
7
1.7
ENE
7
1.9
ENE
7
1.8
ENE
7
1.8
ENE
7
2
ENE
7
1.8
ENE
7
1.7
ENE
7
1.6
ENE
7
1.5
ENE
7
1.6
ENE
7
1.4
ENE
7
1.7
ENE
7
1.6
ENE
7
1.6
ENE
7
Wave Graph
Metric surfscale
Energy kJ
475
435
387
394
489
542
440
400
353
319
286
359
325
316
352
316
281
258
223
229
191
234
237
230
Wind (km/h)
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
25
ENE
25
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
30
ENE
on
on
cross-on
on
on
on
on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
High Tide
12:48PM0.69m
11:03PM0.56m
1:21PM0.76m
11:35PM0.52m
1:52PM0.81m
00:06AM0.49m
Low Tide
5:31AM0.16m
6:37PM0.45m
5:54AM0.13m
7:37PM0.43m
6:19AM0.10m
8:25PM0.42m
clear
clear
clear
rain showers
part cloud
clear
clear
part cloud
part cloud
rain showers
part cloud
clear
clear
cloud
part cloud
part cloud
rain showers
rain showers
part cloud
clear
rain showers
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:07
7:07
7:07
1
1
1
1
1
1
Temp °C
23
23
23
23
23
23
23
23
23
22
23
23
23
23
23
22
23
23
23
23
24
23
23
23
19
19
20
19
18
19
19
19
19
19
20
19
19
19
19
19
20
20
20
20
22
21
21
21
Swell 1
Height (m)
Direction
Period (s)
0.3
NW
10
0.2
NNW
10
0.3
S
13
0.3
NW
19
0.4
NW
18
0.6
NW
18
0.6
NW
16
0.6
NW
16
0.7
NW
15
0.7
NW
15
0.7
NW
14
0.7
NW
14
0.7
NW
14
0.7
NW
14
0.7
NW
13
0.7
NW
13
0.6
NW
13
0.6
NW
13
0.6
NW
12
0.6
NW
12
0.6
NW
12
0.6
NW
12
0.6
NW
12
0.6
NW
12
Energy kJ
16
10
29
58
114
192
167
163
218
212
206
192
195
184
171
171
138
128
120
118
118
118
114
112
Swell 2
Height (m)
Direction
Period (s)
0.3
S
13
0.3
S
13
0.2
NNW
10
0.2
NNW
10
0.2
NNW
10
0.2
S
12
0.3
S
15
0.3
S
15
0.3
S
14
0.3
S
14
0.3
S
14
0.3
S
14
0.3
S
13
0.3
S
13
0.4
NNE
13
0.3
S
13
0.3
NNE
12
0.5
N
12
0.5
N
12
0.5
N
12
0.4
N
11
0.5
N
11
0.5
N
11
0.5
N
11
Energy kJ
30
30
9
9
9
12
39
38
37
37
36
35
32
31
53
30
31
73
73
75
35
57
58
57
Swell 3
Height (m)
Direction
Period (s)
0.1
S
17
0.2
S
16
0.3
NW
20
0.2
S
12
0.2
S
12
0.2
NNW
10
0.2
NNW
10
0.2
NNW
9
0.2
NNW
9
0.2
NNW
9
0.1
NW
9
0.1
NW
9
0.2
N
12
0.3
N
12
0.3
S
13
0.3
N
11
0.3
S
13
0.3
S
12
0.3
S
12
0.3
S
12
0.3
NNE
13
0.3
NNE
13
0.3
NNE
13
0.3
NNE
13
Energy kJ
6
21
60
11
11
9
9
8
8
8
3
3
12
27
31
23
29
27
26
26
32
34
34
34
Wind waves
Height (m)
Direction
Period (s)
2.1
ENE
7
2
ENE
7
1.9
ENE
7
2
ENE
7
2.2
ENE
7
2.2
ENE
7
2
ENE
7
1.9
ENE
7
1.8
ENE
7
1.7
ENE
7
1.7
ENE
7
1.9
ENE
7
1.8
ENE
7
1.8
ENE
7
2
ENE
7
1.8
ENE
7
1.7
ENE
7
1.6
ENE
7
1.5
ENE
7
1.6
ENE
7
1.4
ENE
7
1.7
ENE
7
1.6
ENE
7
1.6
ENE
7
Energy kJ
475
435
387
394
489
542
440
400
353
319
286
359
325
316
352
316
281
258
223
229
191
234
237
230
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
2
1
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Distance (km)
45
45
42
51
125
51
45
41
41
41
41
41
47
45
47
41
41
41
41
45
42
41
41
41
Best forecast wave conditions in Oahu
Rating
(10 max)
2
1
2
2
3
3
2
3
3
3
3
3
3
2
2
2
2
2
2
2
2
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
2
4
3
3
4
4
4
4
3
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
9
5
6
7
7
9
7
9
9
6
6
6
9
9
9
9
9
7
7
6
6
5
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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