Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 8 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
28.8°C
0.3° 

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


Castles surf forecast from 12 Sep 2026:

  • Most powerful swell: Sunday 20 Sep, 3AM (local time) - 11ft (3.5m), 17s period, ENE swell with 6,678 kJ wave energy.

Best Forecast Surf Conditions for Castles this week:

The most powerful waves expected at Castles in the next 16 days are 3.5m 17s and forecast to arrive on Sunday (Sep 20) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Sunday (Sep 20) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Sun 20th Sep)11ft (3.5m) 17s

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


Short Range Forecast

Moderate rain (total 18mm), heaviest on Mon night. Warm (max 29°C on Tue afternoon, min 27°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Thu morning. Warm (max 28°C on Tue night, min 27°C on Tue night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
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
1
1
0
1
1
0
1
1
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)
0.6
E
14
0.6
E
14
1.3
E
7
1.3
E
8
1.3
E
8
1.3
E
9
1.3
E
9
1.2
E
9
1.2
E
9
1.3
E
10
1.1
E
10
1.1
E
10
0.7
ENE
14
1
E
9
0.9
E
9
0.6
ENE
13
0.9
E
9
0.9
E
9
1
E
8
Wave Graph
Metric surfscale
Energy kJ
146
142
168
206
239
251
263
230
251
299
223
223
213
166
135
135
120
120
140
Wind (km/h)
25
ENE
25
ENE
25
ENE
20
E
15
ENE
15
ENE
15
ENE
5
E
10
ENE
15
ENE
10
NE
10
NE
15
ENE
15
ENE
15
ENE
15
ENE
15
NE
20
NE
20
NNE
Wind State
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-off
High Tide
8:13AM2.25m
8:18PM2.17m
8:52AM2.14m
8:45PM2.14m
9:30AM1.99m
9:10PM2.09m
10:09AM1.81m
9:33PM2.01m
10:50AM1.64m
9:57PM1.92m
11:44AM1.49m
10:23PM1.82m
Low Tide
1:58AM0.34m
2:18PM0.50m
2:35AM0.31m
2:49PM0.64m
3:11AM0.34m
3:16PM0.80m
3:48AM0.41m
3:41PM0.96m
4:26AM0.52m
4:04PM1.11m
5:09AM0.64m
4:25PM1.23m
clear
cloud
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
part cloud
rain showers
thunderstorm
clear
thunderstorm
clear
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:34
6:32
6:31
6:30
 mm
3
3
1
8
3
2
2
1
1
Temp °C
28
28
28
28
28
28
28
28
29
28
28
28
28
28
28
28
28
28
27
Feels °C
30
29
29
30
31
30
30
31
32
30
32
31
31
31
30
31
31
30
28
  • 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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