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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Wednesday 10 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Yona Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Yona Bay sea temperature is
24.4° C
(Which is normal for this time of year)How big are the waves at Yona Bay today?
The current surf forecast for Yona Bay at 10AM is: 1.1m 8s primary swell from a East direction and 0.7m 7s secondary swell from a North-northwest direction, 0.5m 7s secondary swell from a North-northwest direction (forecast issued at 02:00am December 10). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 3.5ft (1.1m) | 8s |
| Afternoon (10 Dec) | 3.5ft (1.0m) | 8s |
| Evening (10 Dec) | 2ft (0.6m) | 6s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 9 | 9 | 8 | 8 | 8 | 8 | 6 | 6 | 6 | 9 | 9 | 9 | 6 | 6 | 5 | 5 | 5 | 5 | 10 | 7 | 7 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 103 | 180 | 175 | 171 | 142 | 143 | 143 | 28 | 20 | 19 | 13 | 63 | 63 | 6 | 5 | 5 | 5 | 3 | 3 | 305 | 331 | 183 | 245 | 284 |
Wind (km/h) | ||||||||||||||||||||||||
| 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 | off | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 9:39PM 1.66 | 11:22AM 1.55 | 10:36PM 1.52 | 12:15PM 1.51 | 11:45PM 1.38 | 1:11PM 1.49 | ||||||||||||||||||
Low Tide / height (m) | 4:34AM 0.18 | 5:02PM 0.84 | 5:26AM 0.34 | 6:12PM 0.82 | 6:22AM 0.50 | 7:30PM 0.77 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:34 | - | - | - | - | - | - | - | 5:34 | - | - | - | - | - | - | - | 5:35 | - | - |
 | |  |  |  | |  | | |  | |  | | |  | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 2 | 2 | 2 | 1 | 2 | 3 | 4 | 2 | 3 | 5 | 2 | 3 |
| Temp. °C | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 20 |
| Feels °C (?) | 15 | 16 | 15 | 16 | 16 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 21 | 21 | 22 | 23 | 22 | 21 | 14 | 16 | 16 | 14 | 16 | 19 |
- 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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