Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Castles surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 10 Jan 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
22.8° C
 (Which is normal for this time of year)

How big are the waves at Castles today?

The current surf forecast for Castles at 1PM is: 0.3m 9s primary swell from a East-southeast direction and 0.4m 7s secondary swell from a Northeast direction (forecast issued at 08:00am January 10). An open ocean swell of 0.4m 7s is not directed at the surf break, a second open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (10 Jan)1ft (0.3m)9s
Afternoon (10 Jan)1.5ft (0.4m)6s
Evening (10 Jan)0.5ft (0.2m)10s

Table - waves today at Castles. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
10
Sunday
11
Monday
12
Tue
13
6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.3
ESE
0.3
ESE
0.4
NE
0.4
NE
0.4
NE
0.2
E
0.2
E
0.2
E
0.2
E
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.6
NE
0.2
E
0.4
NE
0.2
E
0.2
E
0.2
E
0.2
ESE
Period(s) (?)997661010101010109101010101051059998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)16161513148888161678888919877776
Wind
(km/h)
15
NW
15
NNW
15
NNW
25
NNW
25
NNW
25
NNW
25
N
30
N
40
N
35
N
35
N
35
N
35
N
30
N
25
NNE
20
NNE
20
NNE
10
NE
10
NE
5
NE
0
NNW
5
N
0
S
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrossglassglassglassglasscross
High Tide
/ height (m)
11:52AM
1.60
12:26AM
1.34
12:30PM
1.57
1:46AM
1.23
1:13PM
1.55
Low Tide
/ height (m)
5:29AM
0.56
6:20PM
0.58
6:08AM
0.73
7:24PM
0.57
6:52AM
0.88
8:34PM
0.52
Saturday
10
Sunday
11
Monday
12
Tue
13
Sunrise-7:18-------7:18-------7:18------
Sunset---5:54-------5:54-------5:55----
clear
cloud
cloud
part cloud
part cloud
cloud
clear
cloud
clear
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
cloud
cloud
cloud
cloud
clear
clear
Rain (mm)
------------------------
Temp. °C171718181817171717161515141414141414151616161617
Feels °C (?)1313151313111110987767891011121415151515
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest