Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 2 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
30.6° C
1.7° 

Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Castles surf forecast from 4 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 9AM (local time) - 18ft (5.5m), 17s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 8 Aug, 9AM (local time) - 44ft (13.5m), 14s period, S swell with 75,188 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 9AM (local time) - 18ft (5.5m), 17s period with ENE swell.

Best Forecast Surf Conditions for Castles this week:

The surf forecast for Castles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 9AM. The primary swell is predicted to be 5.5m and 17s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Castles in the next 16 days are 13.5m 14s and forecast to arrive on Saturday (Aug 08) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 15.0m 15s period and expected on Saturday (Aug 08) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 6th Aug)18ft (5.5m) 17s
Best Surf 9AM (Thu 6th Aug)18ft (5.5m) 17s
Most Powerful 9AM (Sat 8th Aug)44ft (13.5m) 14s

Table - best surf conditions forecast for Castles over the next 16 days.


Short Range Forecast

Heavy rain (total 208mm), heaviest during Fri afternoon. Warm (max 30°C on Wed morning, min 28°C on Thu night). Mainly extremely windy.

Days 4-6 Weather Summary

Heavy rain (total 321mm), heaviest during Sun afternoon. Warm (max 30°C on Sat afternoon, min 28°C on Sun morning). Winds increasing (calm on Sat morning, extremely windy from the SW by Sun afternoon).

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
5
7
!
!
!
!
0
2
!
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
E
17
3
E
17
4.5
E
17
5.5
ENE
17
6
E
17
8
ENE
17
7.5
ENE
16
4
ENE
14
1.7
ENE
11
14
S
14
0.9
ENE
11
0.6
ENE
11
0.7
ENE
10
0.7
E
10
0.8
ENE
15
0.9
E
14
0.9
ENE
14
1
E
13
0.9
ENE
13
0.8
ENE
12
1.6
SSE
10
Wave Graph
Metric surfscale
Energy kJ
4252
6103
11226
16971
18208
38053
28061
6207
627
75188
173
88
110
100
284
324
313
355
277
202
523
Wind (km/h)
20
NE
25
NNE
30
NNE
40
N
50
N
65
NNW
100
NNW
140
NNW
20
NNE
0
WSW
45
SSW
100
SSW
135
SSW
145
SW
105
SW
80
SW
65
SW
45
SSW
35
SSW
25
SSW
25
SW
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
glassy
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
High Tide
11:06AM1.80m
11:02PM2.00m
12:14PM1.65m
11:47PM1.97m
1:55PM1.55m
00:51AM1.93m
3:58PM1.57m
2:19AM1.93m
5:19PM1.70m
3:48AM2.00m
6:09PM1.83m
5:02AM2.13m
6:49PM1.95m
Low Tide
4:56PM0.91m
5:54AM0.62m
5:38PM1.09m
7:08AM0.62m
6:40PM1.26m
8:38AM0.58m
8:22PM1.35m
10:03AM0.46m
10:04PM1.31m
11:10AM0.32m
11:16PM1.17m
12:04PM0.20m
00:10AM1.00m
clear
thunderstorm
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part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:13
7:12
7:10
7:09
7:09
7:08
 mm
1
14
42
133
18
5
4
43
91
119
50
5
2
2
1
3
2
Temp °C
30
30
29
30
30
29
28
28
30
29
30
29
29
28
29
29
30
30
30
30
29
Feels °C
32
32
31
29
27
24
16
9
37
37
30
22
11
7
16
22
27
28
31
32
32
  • 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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Information about the Castles Surf forecast

The above surf forecast table for Castles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castles can be found by selecting the local surf guide option on the grey menu. Our Castles surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Castles) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Castles may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Castles is 6 km (4 miles) from the city of Itoman. If you plan a holiday in Okinawa, look for hotels and other accommodation in Itoman. Itoman has rooms for a wide range of budgets as well as car hire and transport links.

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