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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 18 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
24.3° C
(Which is normal for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 1AM is: 1.8m 14s primary swell from a East-southeast direction and 1.2m 10s secondary swell from a East-northeast direction (forecast issued at 08:00pm April 18). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 6ft (1.8m) | 14s |
| Afternoon (19 Apr) | 6ft (1.8m) | 14s |
| Evening (19 Apr) | 6ft (1.8m) | 14s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1538 | 1443 | 1267 | 1284 | 1284 | 1307 | 1288 | 1215 | 1172 | 1190 | 1155 | 1016 | 1016 | 918 | 905 | 861 | 746 | 620 | 603 | 513 | 488 | 416 | 416 | 404 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:59PM 2.03 | 7:34AM 2.07 | 8:45PM 1.94 | 8:08AM 2.05 | 9:34PM 1.80 | 8:44AM 1.98 | ||||||||||||||||||
Low Tide / height (m) | 1:48AM 0.52 | 2:13PM -0.17 | 2:25AM 0.65 | 2:57PM -0.13 | 3:03AM 0.80 | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - |
| Sunset | 6:52 | - | - | - | - | - | - | - | 6:53 | - | - | - | - | - | - | - | 6:53 | - | - | - | - | - | - | - |
 |  | | | | | | |  | | | | | | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 22 | 23 | 23 |
| Feels °C (?) | 24 | 23 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 18 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 18 | 21 | 23 | 23 |
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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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