Castles surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 pm Wednesday 13 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles sea temperature is
24.1° C
(Which is 1.3°C colder than average for this time of year)

How big are the waves at Castles today?

The current surf forecast for Castles at 3AM is: 0.8m 10s primary swell from a East-southeast direction and 0.6m 9s secondary swell from a East-northeast direction, 0.4m 3s secondary swell from a East-northeast direction (forecast issued at 08:00pm May 13). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (14 May)2.5ft (0.8m)10s
Afternoon (14 May)2.5ft (0.8m)10s
Evening (14 May)2.5ft (0.8m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Wed night, min 22°C on Wed night). Mainly fresh winds.

Wed
13
Thursday
14
Friday
15
Saturday
16
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
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 Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
10
0.8
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
9
0.8
ESE
9
0.7
ESE
9
0.9
ENE
9
1.1
E
5
1.3
E
5
1.4
E
6
1.6
E
6
1.6
E
6
1.7
E
6
1.8
E
7
1.3
ENE
7
1.5
E
7
1.4
ENE
7
1.3
ENE
7
1.4
ENE
6
Wave Graph
Metric surfscale
Energy kJ
157
136
163
128
125
125
123
120
115
115
88
132
69
92
123
170
194
233
303
167
236
168
141
139
Wind (km/h)
15
ENE
15
ENE
15
ENE
15
E
20
E
20
E
20
E
20
E
20
E
20
E
20
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
High Tide
4:26PM1.76m
4:28AM1.88m
5:23PM1.89m
5:08AM2.00m
6:15PM1.98m
5:48AM2.10m
Low Tide
10:27PM0.63m
10:59AM0.27m
11:15PM0.64m
11:45AM0.06m
00:01AM0.66m
12:30PM-0.10m
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:07
7:07
7:07
Temp °C
23
23
22
22
22
23
23
23
23
23
22
22
22
22
23
23
23
22
22
22
22
22
23
23
24
24
22
22
22
23
23
23
22
23
21
20
19
18
20
19
19
18
18
19
19
18
20
20
Swell 1
Height (m)
Direction
Period (s)
0.9
ESE
10
0.8
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
9
0.8
ESE
9
0.7
ESE
9
0.7
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
10
0.2
ESE
11
0.5
E
10
0.5
E
10
0.2
ESE
11
0.9
ESE
7
0.4
ENE
9
0.7
ESE
8
0.7
ESE
8
0.7
ESE
10
Energy kJ
157
136
163
128
125
125
123
120
115
115
88
90
69
66
71
13
49
52
12
77
34
54
68
98
Swell 2
Height (m)
Direction
Period (s)
0.7
ENE
9
0.8
ENE
9
0.6
ENE
9
0.6
ENE
9
0.3
SSE
7
0.3
SSE
7
0.5
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
9
0.2
SSE
6
0.2
SSE
6
0.1
SE
12
0.1
SE
12
0.2
S
6
0.1
SE
12
0.1
SE
11
0.1
SE
15
0.5
ENE
9
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.1
SE
11
Energy kJ
86
108
64
65
10
10
46
46
47
47
47
4
4
6
6
3
5
5
9
48
35
33
34
5
Swell 3
Height (m)
Direction
Period (s)
0.3
SSE
8
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.3
SSE
7
0.2
SSE
7
0.1
SE
12
0.1
SE
12
0.2
S
6
0.2
S
6
0.1
SE
16
0.1
S
6
0.1
S
6
0.1
S
6
0.4
ESE
10
0.2
ESE
11
0.4
ENE
9
0.2
ESE
11
0.1
SE
14
Energy kJ
11
11
11
11
10
9
9
9
9
4
6
6
3
3
10
1
1
1
33
12
33
12
8
Wind waves
Height (m)
Direction
Period (s)
0.4
ENE
3
0.4
ENE
3
0.7
ENE
9
0.7
ENE
9
0.5
E
4
0.5
E
4
0.6
E
4
0.6
E
4
0.6
E
4
0.9
ENE
9
1.1
E
5
1.3
E
5
1.4
E
6
1.6
E
6
1.6
E
6
1.7
E
6
1.8
E
7
1.3
ENE
7
1.5
E
7
1.4
ENE
7
1.3
ENE
7
1.4
ENE
6
Energy kJ
3
4
84
84
6
7
9
12
12
132
54
92
123
170
194
233
303
167
236
168
141
139
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
2
1
1
1
1
3
1
Distance (km)
32
32
32
32
41
32
32
588
67
624
687
687
607
605
1309
1078
1019
687
29
29
29
29
687
29
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
3
3
2
3
2
Header Global
Rating
(10 max)
8
7
7
9
9
9
9
9
5
5
5
5
5
5
5
5
5
5
5
5
5
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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