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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Sunday 12 Apr 2026 JSTForecast 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
23.6° C
(Which is normal for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 4AM is: 1.0m 10s primary swell from a East direction and 0.1m 6s secondary swell from a North direction, 0.7m 5s secondary swell from a Southwest direction (forecast issued at 08:00pm April 12). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 3.5ft (1.0m) | 10s |
| Afternoon (13 Apr) | 3.5ft (1.0m) | 11s |
| Evening (13 Apr) | 3.5ft (1.0m) | 10s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 13 | 14 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 208 | 170 | 208 | 208 | 208 | 231 | 240 | 245 | 240 | 231 | 231 | 236 | 236 | 231 | 227 | 285 | 374 | 444 | 469 | 551 | 756 | 1021 | 2230 | 2573 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 4:14AM 1.51 | 3:51PM 1.60 | 4:48AM 1.65 | 4:51PM 1.76 | 5:21AM 1.78 | |||||||||||||||||||
Low Tide / height (m) | 9:28PM 0.50 | 9:59AM 0.82 | 10:24PM 0.42 | 10:47AM 0.58 | 11:10PM 0.36 | 11:29AM 0.34 | ||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - |
| Sunset | 6:50 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - |
 |  | |  | |  | | | | | | | | | | | | | | |  |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - |
| Temp. °C | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 |
| Feels °C (?) | 26 | 25 | 25 | 24 | 23 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 25 | 25 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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