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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Wednesday 13 May 2026 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
23.6° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Yona Bay today?
The current surf forecast for Yona Bay at 3PM is: 1.1m 10s primary swell from a East direction (forecast issued at 08:00am May 13). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 2.5ft (0.8m) | 10s |
| Afternoon (13 May) | 3.5ft (1.1m) | 10s |
| Evening (13 May) | 3.5ft (1.0m) | 9s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 22°C on Wed morning). Winds increasing (light winds from the NE on Wed morning, fresh winds from the ENE by Fri morning). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 11 | ENE 11 | ENE 5 | ENE 6 | E 6 | E 6 | E 7 | ENE 6 | |
225 | 117 | 122 | 220 | 173 | 173 | 61 | 59 | 55 | 46 | 41 | 113 | 29 | 29 | 29 | 42 | 23 | 23 | 0 | 0 | 0 | 178 | 202 | 100 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:17AM1.63m | 4:52PM1.59m | 4:53AM1.73m | 5:42PM1.72m | 5:28AM1.82m | 6:29PM1.80m | ||||||||||||||||||
Low Tide | 10:38AM0.52m | 10:47PM0.62m | 11:20AM0.32m | 11:32PM0.63m | 12:00PM0.14m | 00:13AM0.65m | ||||||||||||||||||
 |  | | | |  | |  |  | | | | | | | | | | | | |  | | | |
 | 5:41 | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 |
25 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 7 |
 kJ | 225 | 117 | 122 | 220 | 173 | 173 | 98 | 98 | 98 | 123 | 94 | 113 | 86 | 86 | 64 | 69 | 66 | 43 | 46 | 51 | 33 | 37 | 35 | 47 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | ESE 10 | ESE 9 | SSE 8 | SSE 8 | SSE 7 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 11 | ENE 11 | S 6 | SE 12 | S 6 | S 6 | SE 11 | E 9 |
| kJ | 6 | 100 | 65 | 11 | 11 | 11 | 61 | 59 | 55 | 46 | 41 | 17 | 29 | 29 | 29 | 42 | 23 | 23 | 1 | 5 | 1 | 1 | 5 | 43 |
Swell 3 Height (m) Direction Period (s) | — | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | S 6 | SE 12 | S 6 | SE 11 | SE 11 | S 6 | ESE 10 |
| kJ | — | 13 | 13 | 11 | 11 | 11 | 11 | 11 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 3 | 6 | 1 | 5 | 5 | 1 | 32 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ESE 3 | ESE 3 | E 3 | ENE 3 | ENE 3 | E 3 | E 4 | ENE 4 | E 5 | ENE 5 | ENE 6 | E 6 | E 6 | E 7 | ENE 6 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 2 | 3 | 6 | 10 | 31 | 56 | 94 | 131 | 162 | 178 | 202 | 100 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 597 | 63 | 622 | 59 | 0 | 0 | 0 | 0 | 35 | 35 | 35 | 595 | 595 | 595 | 595 | 595 | 65 | 1006 | 64 | 65 | 65 | 65 | 33 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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