Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Thursday 14 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
25.3° 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 6AM is: 1.8m 7s primary swell from a East-northeast direction (forecast issued at 01:00am May 14). An open ocean swell of 0.6m 16s is not directed at the surf break, a second open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (14 May)5.5ft (1.7m)7s
Afternoon (14 May)5ft (1.6m)7s
Evening (14 May)5ft (1.6m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 29mm), heaviest during Fri afternoon. Warm (max 24°C on Thu morning, min 20°C on Fri afternoon). Winds decreasing (fresh winds from the ENE on Thu morning, calm by Fri afternoon).

Thursday
14
Friday
15
Saturday
16
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)
0
0
0
0
0
0
0
0
0
0
0
1
0
2
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.9
ENE
7
1.8
ENE
7
1.8
ENE
7
1.7
ENE
7
1.6
ENE
7
1.6
ENE
7
1.6
ENE
7
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1
E
8
1.7
E
8
1.3
ESE
8
1.6
ENE
7
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.5
ENE
8
1.5
ENE
8
1.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
326
302
310
270
254
247
261
266
273
273
140
320
201
259
280
333
341
322
322
322
322
291
280
280
Wind (km/h)
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
E
20
E
20
ESE
10
ESE
15
E
25
ESE
5
S
10
ENE
20
E
15
ENE
20
E
20
E
15
E
15
ENE
20
ENE
15
ENE
15
E
on
on
on
on
on
cross-on
on
on
on
on
on
on
cross-on
glassy
on
on
on
on
on
on
on
cross-on
cross-on
on
High Tide
11:50PM0.61m
1:42PM0.84m
00:24AM0.57m
2:24PM0.91m
00:58AM0.53m
3:09PM0.95m
Low Tide
6:29AM0.05m
7:53PM0.39m
7:00AM-0.00m
8:51PM0.39m
7:34AM-0.04m
9:49PM0.39m
part cloud
clear
part cloud
rain showers
part cloud
part cloud
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
mod rain
mod rain
light rain
clear
clear
part cloud
clear
clear
clear
thunderstorm
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:01
7:01
1
1
1
2
10
10
2
1
1
Temp °C
23
23
23
24
24
24
24
24
23
24
24
24
21
20
21
24
24
24
24
24
24
24
24
24
20
20
20
22
22
22
23
23
22
24
25
25
20
22
22
24
24
24
25
25
25
25
25
26
Swell 1
Height (m)
Direction
Period (s)
0.5
NW
16
0.6
NNW
16
0.7
NW
15
0.9
NW
15
0.9
NNW
15
1
NW
15
1.1
NW
14
1.1
NW
14
1
NW
13
1
NW
13
1.1
NE
7
1.4
ENE
7
1.1
NE
7
0.7
NW
12
0.7
NW
12
0.6
NW
12
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1.5
ENE
8
1.5
ENE
8
1.5
ENE
8
Energy kJ
132
177
242
322
382
418
469
437
352
342
140
188
112
147
144
112
341
322
322
322
322
291
280
280
Swell 2
Height (m)
Direction
Period (s)
0.4
N
8
0.4
N
8
0.4
N
8
0.4
N
8
0.5
N
8
0.4
N
8
0.4
N
8
0.4
N
8
0.4
N
8
0.4
NNE
8
0.9
NNW
13
0.9
NW
12
1
E
8
0.4
N
8
0.5
N
7
0.5
N
6
0.6
NNW
11
0.6
NNW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.4
NNW
10
Energy kJ
22
22
22
22
35
22
22
22
22
22
295
227
131
21
26
20
84
81
59
58
58
58
57
42
Swell 3
Height (m)
Direction
Period (s)
0.3
NW
9
0.3
NW
8
0.2
NNW
8
0.3
NW
11
0.2
NNW
11
0.1
S
12
0.3
NW
10
0.2
S
12
0.2
S
12
0.2
S
12
0.3
NNE
8
0.7
E
8
0.9
NW
12
0.2
SSE
11
0.2
SSE
11
0.2
NNW
15
0.3
N
6
0.2
SSE
11
0.2
NNW
13
0.2
NNW
13
0.2
SSE
10
0.2
SSW
16
0.2
SSW
16
0.2
SSE
12
Energy kJ
12
11
7
19
11
3
15
11
11
11
13
64
212
12
12
21
7
11
18
17
10
26
26
14
Wind waves
Height (m)
Direction
Period (s)
1.9
ENE
7
1.8
ENE
7
1.8
ENE
7
1.7
ENE
7
1.6
ENE
7
1.6
ENE
7
1.6
ENE
7
1.6
ENE
8
1.6
ENE
8
1.6
ENE
8
1
E
8
1.7
E
8
1.3
ESE
8
1.6
ENE
7
1.6
ENE
8
1.6
ENE
8
Energy kJ
326
302
310
270
254
247
261
266
273
273
137
320
201
259
280
333
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
3
3
2
2
1
1
3
1
2
2
2
1
1
1
1
1
1
1
1
1
Distance (km)
41
41
41
41
42
41
41
41
18
18
13
18
42
0
18
18
18
18
18
18
18
18
18
18
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
3
3
3
3
3
3
3
3
3
3
2
2
2
2
3
3
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
3
3
3
4
4
4
3
3
3
2
2
2
2
5
5
2
2
2
4
4
4
Header Global
Rating
(10 max)
5
4
5
5
5
6
5
5
5
5
5
5
5
5
5
4
5
5
6
5
5
5
5
7
  • 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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