Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 8 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
28.8° C
0.0° 

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


Castles surf forecast from 16 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 9PM (local time) - 10ft (3.0m), 10s period, ESE swell with 1,657 kJ wave energy.

Best Forecast Surf Conditions for Castles this week:

The most powerful waves expected at Castles in the next 16 days are 3.0m 10s and forecast to arrive on Wednesday (Aug 19) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 10s period and expected on Sunday (Aug 23) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9PM (Wed 19th Aug)10ft (3.0m) 10s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Wed morning. Warm (max 29°C on Mon afternoon, min 27°C on Sun night). Winds increasing (light winds from the E on Mon morning, strong winds from the ENE by Tue night).

Days 5-7 Weather Summary

Heavy rain (total 36mm), heaviest during Thu afternoon. Warm (max 29°C on Fri morning, min 27°C on Wed night). Winds decreasing (fresh winds from the SSE on Wed night, light winds from the SSE by Thu night).

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
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
1
0
1
2
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ENE
10
0.8
ENE
10
0.8
ENE
10
0.9
ENE
10
1.4
E
6
1.5
E
6
2.4
E
8
2.3
E
8
3
ESE
8
3
ESE
10
2.4
SE
9
3
SSE
10
2.4
S
9
2.3
S
10
2.5
S
9
2.5
S
9
2.2
S
9
2.4
S
8
1.6
S
8
Wave Graph
Metric surfscale
Energy kJ
111
114
111
163
148
165
688
675
1302
1539
924
1426
1004
943
1090
1146
753
728
347
Wind (km/h)
20
ESE
15
E
15
ESE
20
ESE
30
E
35
ENE
40
E
35
E
25
SE
20
SSE
30
SSE
20
S
15
S
20
SSW
25
S
25
S
30
S
25
S
25
S
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
9:31PM2.10m
9:52AM2.04m
9:59PM2.05m
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
Low Tide
3:41AM0.52m
3:54PM0.68m
4:22AM0.57m
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
clear
clear
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:02
7:01
7:00
7:00
6:59
 mm
1
1
7
13
3
8
9
8
2
2
1
2
2
2
Temp °C
27
28
29
28
28
28
28
27
28
28
28
28
28
29
29
28
29
29
28
Feels °C
28
31
32
31
28
28
27
27
30
30
29
32
32
31
30
29
30
31
31
  • 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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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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