Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 8 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
28.9° C
0.1° 

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


Castles surf forecast from 18 Aug 2026:

  • Most powerful swell: Tuesday 25 Aug, 3PM (local time) - 8ft (2.5m), 16s period, ESE swell with 3,619 kJ wave energy.

Best Forecast Surf Conditions for Castles this week:

The most powerful waves expected at Castles in the next 16 days are 2.5m 16s and forecast to arrive on Tuesday (Aug 25) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Saturday (Aug 22) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3PM (Tue 25th Aug)8ft (2.5m) 16s

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


Short Range Forecast

Heavy rain (total 43mm), heaviest during Thu night. Warm (max 29°C on Thu afternoon, min 26°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 67mm), heaviest during Fri morning. Warm (max 28°C on Sun morning, min 25°C on Fri morning). Winds increasing (light winds from the NE on Fri afternoon, fresh winds from the SSE by Sat afternoon).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
2
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)
1.5
E
6
1.6
E
6
1.7
E
7
1.8
E
7
1.9
E
7
2.4
ESE
8
3
SE
8
2.1
SE
8
2.3
SE
8
2.5
SSE
7
2.3
SSE
7
1.7
SSE
8
1.6
SSE
6
1.7
SSE
6
0.4
SE
10
0.4
SE
10
0.2
E
14
0.6
ESE
16
1.2
ESE
14
1.2
ESE
14
2
ESE
16
Wave Graph
Metric surfscale
Energy kJ
159
193
248
311
378
745
1032
581
716
773
516
318
179
223
24
24
16
193
542
497
2094
Wind (km/h)
30
E
30
E
30
E
30
E
30
ESE
30
ESE
25
SE
25
SE
35
S
30
SSE
5
NE
25
SSW
30
S
30
SSE
25
SSE
25
SE
25
SE
25
ESE
30
E
25
E
15
E
Wind State
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
10:35AM1.85m
10:26PM1.99m
11:22AM1.67m
10:53PM1.92m
12:25PM1.50m
11:25PM1.84m
2:21PM1.41m
00:12AM1.77m
4:51PM1.47m
1:35AM1.72m
5:34PM1.58m
3:15AM1.74m
5:58PM1.69m
Low Tide
4:23PM0.87m
5:06AM0.64m
4:49PM1.05m
5:57AM0.73m
5:15PM1.21m
7:03AM0.80m
5:48PM1.34m
8:29AM0.80m
7:37PM1.44m
9:50AM0.74m
9:50PM1.41m
10:46AM0.63m
10:55PM1.28m
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:03
6:03
6:03
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:01
7:00
7:00
6:59
6:58
6:57
 mm
2
3
3
8
13
2
12
15
12
18
9
10
2
1
Temp °C
28
28
28
28
28
28
28
29
27
26
26
27
26
27
27
28
28
27
27
27
26
Feels °C
29
28
29
29
29
29
30
30
26
27
31
28
26
27
27
29
29
28
27
27
27
  • 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
How to use the Wavefinder 
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Quick surf report for Castles:

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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