Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Sunday 04 Jan 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
23.1° 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: 0.3m 9s primary swell from a East-southeast direction and 0.4m 6s secondary swell from a East-northeast direction (forecast issued at 02:00pm January 04). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Jan) | - | - |
| Afternoon (04 Jan) | 1ft (0.3m) | 9s |
| Evening (04 Jan) | 1ft (0.3m) | 9s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 21 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 11 | 11 | 11 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | glass | glass | glass | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | off | off | off |
High Tide / height (m) | 7:15PM 2.05 | 8:49AM 1.80 | 8:04PM 2.02 | 9:28AM 1.78 | 8:53PM 1.94 | |||||||||||||||||||
Low Tide / height (m) | 1:28PM 0.73 | 2:08AM -0.25 | 2:15PM 0.66 | 2:52AM -0.16 | 3:01PM 0.62 | 3:34AM -0.02 | ||||||||||||||||||
Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 |
| Sunset | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - |
 | |  |  | | | |  | | | |  | | | |  | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 5 | 2 | 1 | - | - | - | - | - | 1 | - | - | 1 | - |
| Temp. °C | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 13 |
| Feels °C (?) | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 17 | 13 | 13 | 12 | 10 | 11 | 14 | 12 | 13 | 12 | 10 | 8 | 6 | 5 |
- 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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