Castles Surf Break

Lat Long: 26.07° N 127.68° E

Castles Surf Forecast and Surf Report

Issued: 8 am 09 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 9 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 9AM (local time) - 2.5ft (0.8m), 9s period, N swell with cross-offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 9AM (local time) - 5ft (1.5m), 9s period, E swell with 367 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 9AM (local time) - 2.5ft (0.8m), 9s period with N 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 (Sep 10) at 9AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.2m and 4s is also forecast. 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 1.5m 9s and forecast to arrive on Tuesday (Sep 15) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Sep 09) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 10th Sep)2.5ft (0.8m) 9s
Best Surf 9AM (Thu 10th Sep)2.5ft (0.8m) 9s
Most Powerful 9AM (Tue 15th Sep)5ft (1.5m) 9s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Fri afternoon. Warm (max 28°C on Wed morning, min 26°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 28mm), heaviest during Mon night. Warm (max 28°C on Sat morning, min 27°C on Sat afternoon). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
1
0
0
0
0
0
0
0
0
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)
0.4
S
7
0.4
ENE
9
0.6
N
8
0.8
N
9
0.3
ESE
9
0.5
N
10
0.8
ESE
5
0.4
ENE
15
1.4
SE
6
1.2
SE
6
0.5
E
14
0.5
E
14
0.6
E
14
0.6
E
14
1.2
E
8
1.4
E
9
1.5
E
9
1.4
E
9
1.5
E
9
1.4
E
9
1.4
ESE
9
Wave Graph
Metric surfscale
Energy kJ
17
26
42
101
17
46
32
73
146
116
104
103
142
144
173
286
357
318
367
325
314
Wind (km/h)
25
N
25
N
20
N
15
NNE
10
N
10
ESE
15
ESE
20
ESE
25
SE
25
ESE
20
E
25
ENE
25
ENE
30
ENE
25
ENE
25
ENE
25
ENE
20
E
20
ESE
15
SE
15
SE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
on
on
on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross-on
on
on
on
High Tide
6:21PM1.94m
6:01AM2.20m
6:52PM2.05m
6:49AM2.29m
7:21PM2.12m
7:32AM2.31m
7:51PM2.16m
8:13AM2.25m
8:18PM2.17m
8:52AM2.14m
8:45PM2.14m
9:30AM1.99m
9:10PM2.09m
Low Tide
11:51AM0.34m
11:59PM0.81m
12:32PM0.30m
00:40AM0.60m
1:10PM0.31m
1:20AM0.44m
1:46PM0.38m
1:58AM0.34m
2:18PM0.50m
2:35AM0.31m
2:49PM0.64m
3:11AM0.34m
3:16PM0.80m
clear
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:39
6:38
6:37
6:36
6:35
6:34
 mm
2
2
6
2
4
1
1
8
14
5
13
8
Temp °C
28
28
27
28
28
28
28
28
28
28
28
27
28
28
27
28
28
27
28
28
28
Feels °C
28
28
29
32
32
32
32
30
31
30
30
29
29
29
29
29
29
28
31
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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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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