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Surf Forecasts:

Castles surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 8 am Saturday 14 Feb 2026 JST
Forecast update in hr  min  s Forecast update imminent
Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles sea temperature is
21.2° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Castles this week:

The surf forecast for Castles over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Feb 15) at 3PM. The primary swell is predicted to be 0.8m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Castles in the next 12 days are 0.9m 12s and forecast to arrive on Wednesday (Feb 18) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Friday (Feb 20) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Sun 15th Feb)2.5ft (0.8m) 9s
Best Surf 3PM (Tue 17th Feb)3ft (0.9m) 9s
Most Powerful12AM (Wed 18th Feb)3ft (0.9m) 12s

Table - best surf conditions forecast for Castles over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 21°C on Sun afternoon, min 16°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the NNE by Mon night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Tue morning, min 14°C on Wed night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the NNW by Wed afternoon).

Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
1
0
1
1
0
1
2
2
1
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
ESE
0.7
ESE
0.6
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.6
E
1.2
N
0.5
E
0.6
NE
0.5
E
0.5
E
0.7
E
0.6
E
Period(s) (?)999999999991211116121011111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5978581018890949412615312123220591116707761599878
Wind
(km/h)
15
SSE
15
S
15
SSW
10
SW
10
WSW
10
SSW
5
S
10
W
30
NE
15
NNE
15
NNE
10
NNE
20
N
35
NNW
30
NNE
15
NNE
10
NE
10
SE
20
SSW
25
SW
20
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		crosscross-
off		crossglasscross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crossoncrosscrosscross-
off
High Tide
/ height (m)
4:33PM
1.60
6:29AM
1.53
5:27PM
1.73
6:56AM
1.64
6:13PM
1.84
7:23AM
1.73
6:56PM
1.94
7:51AM
1.79
7:37PM
1.98
8:18AM
1.82
8:18PM
1.98
8:45AM
1.83
8:59PM
1.91
Low Tide
/ height (m)
10:59AM
0.97
11:39PM
0.13
11:46AM
0.82
12:18AM
0.02
12:26PM
0.66
12:55AM
-0.05
1:03PM
0.51
1:31AM
-0.06
1:39PM
0.37
2:06AM
-0.02
2:15PM
0.26
2:39AM
0.08
2:51PM
0.18
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise7:05--7:05--7:03--7:03--7:03--7:01--7:01--
Sunset-6:21--6:21--6:22--6:22--6:22--6:23--6:23-
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
rain showers
cloud
cloud
part cloud
cloud
cloud
clear
clear
clear
clear
cloud
rain showers
part cloud
Rain (mm)
--------1----------1-
Temp. °C191919202120202017171716161615151617191917
Feels °C (?)1616182021202120121515141298111314151513
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Castles at:
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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 12 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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