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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Wednesday 15 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
24.2° C
(Which is slightly warmer than usual)How big are the waves at Castles today?
The current surf forecast for Castles at 5PM is: 2.1m 16s primary swell from a East-southeast direction (forecast issued at 08:00am April 15). An open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Apr) | 4.5ft (1.3m) | 17s |
| Afternoon (15 Apr) | 6.5ft (2.0m) | 16s |
| Evening (15 Apr) | 7ft (2.1m) | 16s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 355 | 1009 | 2072 | 2136 | 2402 | 2314 | 2447 | 2055 | 2038 | 2325 | 2555 | 2491 | 2459 | 2130 | 2082 | 1950 | 1850 | 1825 | 1644 | 1877 | 1801 | 1825 | 1825 | 2198 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on |
High Tide / height (m) | 5:21AM 1.78 | 5:42PM 1.91 | 5:54AM 1.90 | 6:28PM 2.02 | 6:27AM 1.99 | 7:13PM 2.06 | ||||||||||||||||||
Low Tide / height (m) | 11:29AM 0.34 | 11:53PM 0.33 | 12:10PM 0.12 | 12:32AM 0.35 | 12:51PM -0.04 | 1:10AM 0.41 | ||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| Sunrise | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - |
 |  | | | |  |  | | |  | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 25 | 25 | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 22 | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Feels °C (?) | 25 | 26 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 20 | 22 | 22 | 21 | 20 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 21 |
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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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