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:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Tuesday 30 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
23.0° 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 8PM is: 0.4m 12s primary swell from a East-northeast direction (forecast issued at 02:00pm December 30). An open ocean swell of 1.2m 7s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Dec) | - | - |
| Afternoon (30 Dec) | 1.5ft (0.4m) | 13s |
| Evening (30 Dec) | 1.5ft (0.4m) | 12s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 5 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 67 | 66 | 93 | 60 | 58 | 57 | 83 | 124 | 113 | 444 | 710 | 1221 | 1202 | 1168 | 1120 | 979 | 782 | 660 | 617 | 579 | 569 | 623 | 488 | 562 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 3:01PM 1.55 | 4:51AM 1.40 | 3:59PM 1.61 | 5:54AM 1.49 | 4:53PM 1.68 | 6:46AM 1.57 | ||||||||||||||||||
Low Tide / height (m) | 10:04PM 0.26 | 10:08AM 0.84 | 11:03PM 0.10 | 11:11AM 0.86 | 11:56PM -0.05 | |||||||||||||||||||
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 |
| Sunset | - | 5:43 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - |
 |  |  | | |  | |  |  | | | | | | | | | | | |  | | | | |
Rain (mm) | 3 | 4 | 1 | 4 | 2 | - | - | - | - | 1 | 1 | 2 | 1 | 2 | 1 | 1 | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 19 | 19 | 20 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 14 |
| Feels °C (?) | 17 | 17 | 18 | 16 | 14 | 15 | 16 | 16 | 16 | 13 | 13 | 11 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 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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