Castles surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Friday 16 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
22.7° C
(Which is normal for this time of year)


How big are the waves at Castles today?

The current surf forecast for Castles at 7PM is: 0.9m 8s primary swell from a East-southeast direction and 0.5m 10s secondary swell from a East direction (forecast issued at 02:00pm January 16). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (16 Jan)--
Afternoon (16 Jan)3ft (0.9m)8s
Evening (16 Jan)2.5ft (0.8m)8s

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

Updates in  hr  min  s Forecast update imminent
Friday
16
Saturday
17
Sunday
18
Monday
19
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
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
Wave Height (m) & direction (?)
1
ESE
0.9
ESE
0.9
ESE
0.8
ESE
0.8
ESE
1
ESE
1
ESE
1
ESE
1.1
ESE
1.1
ESE
1.2
ESE
1.2
ESE
1.4
ESE
1.4
ESE
1.4
ESE
1.5
ESE
1.5
ESE
1.5
ESE
1.6
ESE
1.6
ESE
1.5
E
1.5
E
1.5
E
1.5
E
Period(s) (?)888899988899998888888889
Wave
Graph
(?)Metric surfscale
Energy kJ (?)11610010084103154147134164160213232281268256280280280326333324331331339
Wind
(km/h)
20
ESE
15
E
20
E
20
E
20
E
15
E
15
E
20
E
20
E
20
ENE
20
E
25
E
20
E
20
E
25
E
25
E
25
E
20
E
20
ENE
20
E
20
ENE
20
ENE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
High Tide
/ height (m)
4:51PM
1.69
6:56AM
1.54
5:38PM
1.76
7:27AM
1.62
6:21PM
1.83
7:57AM
1.68
Low Tide
/ height (m)
11:16AM
0.99
12:02AM
0.08
12:02PM
0.91
12:40AM
-0.02
12:44PM
0.82
1:17AM
-0.08
Friday
16
Saturday
17
Sunday
18
Monday
19
Sunrise-------7:16-------7:16-------7:16
Sunset-5:59--------6:00-------6:00-----
clear
clear
clear
cloud
clear
clear
clear
part cloud
cloud
part cloud
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
cloud
clear
Rain (mm)
------------------------
Temp. °C202020202020202020202020202020202121212120202020
Feels °C (?)161717171718181717171616171716171818181817171717
  • 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

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.


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