Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 8 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
29.9° C
1.0° 

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


Castles surf forecast from 10 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 12AM (local time) - 4ft (1.2m), 8s period, S swell with offshore winds.
  • Most powerful swell: Monday 10 Aug, 12PM (local time) - 4.5ft (1.4m), 13s period, E swell with 704 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 12AM (local time) - 4ft (1.2m), 8s period with S 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 13) at 12AM. The primary swell is predicted to be 1.2m and 8s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Castles in the next 16 days are 1.4m 13s and forecast to arrive on Monday (Aug 10) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 11s period and expected on Monday (Aug 10) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Thu 13th Aug)4ft (1.2m) 8s
Best Surf12AM (Thu 13th Aug)4ft (1.2m) 8s
Most Powerful12PM (Mon 10th Aug)4.5ft (1.4m) 13s

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


Short Range Forecast

Heavy rain (total 20mm), heaviest during Wed morning. Warm (max 29°C on Mon morning, min 27°C on Tue night). Winds increasing (light winds from the SSE on Tue morning, fresh winds from the SW by Wed afternoon).

Days 4-6 Weather Summary

Heavy rain (total 40mm), heaviest during Thu morning. Warm (max 29°C on Fri afternoon, min 27°C on Thu morning). Wind will be generally light.

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
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
1
0
1
0
0
0
2
2
2
1
0
0
0
0
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)
1.4
E
14
1.4
ENE
13
1.8
S
10
1.2
ENE
12
1.1
ENE
12
1
S
9
1.2
S
9
1.2
S
9
1.2
S
8
0.9
ENE
10
0.8
ENE
10
0.9
S
9
0.5
ENE
10
0.6
ENE
10
0.9
S
9
0.7
ENE
11
0.8
ENE
11
0.8
ENE
11
0.8
S
8
0.8
ENE
10
0.8
ENE
10
Wave Graph
Metric surfscale
Energy kJ
736
700
650
439
361
169
224
220
201
160
114
117
56
74
125
107
135
128
82
118
114
Wind (km/h)
25
SE
25
SE
15
SE
15
SSE
15
S
15
S
20
S
35
SW
15
NW
15
NW
20
NNW
15
ENE
5
NE
10
ENE
20
ESE
20
E
25
ESE
20
ESE
20
ESE
20
ESE
25
ESE
Wind State
on
on
on
on
cross-on
cross-on
cross-on
cross
off
off
off
cross
cross
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
High Tide
6:09PM1.83m
5:02AM2.13m
6:49PM1.95m
6:02AM2.25m
7:24PM2.04m
6:54AM2.33m
7:58PM2.11m
7:42AM2.35m
8:31PM2.14m
8:26AM2.31m
9:01PM2.13m
9:10AM2.20m
9:31PM2.10m
Low Tide
11:10AM0.32m
11:16PM1.17m
12:04PM0.20m
00:10AM1.00m
12:51PM0.13m
00:56AM0.82m
1:33PM0.13m
1:40AM0.68m
2:12PM0.19m
2:21AM0.57m
2:49PM0.32m
3:01AM0.52m
3:23PM0.48m
part cloud
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
6:00
6:00
6:00
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:08
7:07
7:07
7:06
7:06
7:05
 mm
1
5
5
1
8
7
7
8
3
6
6
1
1
1
2
2
Temp °C
29
29
28
29
29
28
27
27
27
28
28
27
28
29
28
28
28
28
28
28
28
Feels °C
31
31
31
33
32
32
29
27
30
31
31
31
33
33
31
30
29
31
31
30
30
  • 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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