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Surf Forecasts:

Castles surfForecast / Okinawa / Japan

information circle48hr Weather and Surf, issued 2 pm Tuesday 20 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
22.6° C
 (Which is normal for this time of year)

How big are the waves at Castles today?

The current surf forecast for Castles at 8PM is: 2.2m 10s primary swell from a North direction and 1.0m 9s secondary swell from a East direction, 0.3m 8s secondary swell from a South direction (forecast issued at 02:00pm January 20). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Jan)--
Afternoon (20 Jan)8ft (2.4m)10s
Evening (20 Jan)7ft (2.2m)10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
1
1
2
2
1
0
0
0
0
0
0
0
1
1
1
2
0
1
1
1
1
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.3
N
2.4
N
2.3
N
2.2
N
2.3
N
0.9
ESE
0.9
ESE
0.9
ESE
0.9
ESE
0.8
ESE
0.8
ESE
0.8
ESE
2.5
N
2.5
N
2.4
N
2.3
N
0.8
ENE
2
N
2.1
N
2
N
1.9
N
1.8
N
1.6
N
0.9
ENE
Period(s) (?)101010101099999991010101089999997
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9521184106996710341411471441411151181151346119410929987468571662156150539581
Wind
(km/h)
40
NNE
40
N
35
N
35
N
35
N
35
N
40
N
40
N
35
N
40
N
40
N
40
N
40
N
35
N
40
NNE
30
NNE
30
N
30
N
35
N
35
NNE
25
NNE
25
NNE
25
NNE
20
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
7:44PM
1.91
8:55AM
1.73
8:24PM
1.90
9:23AM
1.73
9:06PM
1.85
Low Tide
/ height (m)
1:58PM
0.64
2:28AM
-0.07
2:35PM
0.56
3:02AM
0.01
3:12PM
0.49
3:37AM
0.14
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise-------7:16-------7:16-------7:16
Sunset--6:01-------6:02-------6:04-----
light rain
cloud
cloud
part cloud
light rain
clear
cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
cloud
part cloud
clear
Rain (mm)
1---1-----11111111------
Temp. °C171717161615151515141413131313131313131314141414
Feels °C (?)1010111097868654554666558888
  • 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:
surf-forecast.com

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