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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Saturday 23 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
23.8° C
(Which is 1.6°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 9AM is: 0.9m 6s primary swell from a West-southwest direction (forecast issued at 02:00am May 23). An open ocean swell of 0.7m 9s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 3ft (0.9m) | 6s |
| Afternoon (23 May) | 1ft (0.3m) | 8s |
| Evening (23 May) | 2ft (0.6m) | 6s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat morning. Warm (max 28°C on Sun morning, min 24°C on Sat morning). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Mon afternoon). | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | ||||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 9 | SW 5 | SW 6 | WSW 6 | WSW 6 | NNW 8 | WSW 6 | W 6 | W 6 | N 7 | N 7 | N 7 | N 7 | W 6 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | ENE 10 | ENE 10 | NE 10 | ENE 10 | NE 9 | |
3 | 73 | 79 | 53 | 209 | 11 | 61 | 23 | 23 | 16 | 15 | 8 | 8 | 30 | 30 | 35 | 46 | 46 | 47 | 64 | 63 | 46 | 60 | 71 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | glassy | off | cross-off | cross-off | glassy | glassy | glassy | glassy | off | |
High Tide | 00:27AM1.55m | 11:37AM1.51m | 1:35AM1.54m | 1:14PM1.42m | 2:37AM1.57m | 2:53PM1.42m | ||||||||||||||||||
Low Tide | 6:07AM0.99m | 6:35PM0.51m | 7:37AM0.92m | 7:49PM0.63m | 8:56AM0.80m | 8:58PM0.71m | ||||||||||||||||||
 |  |  |  |  | |  |  | | |  | | | | |  | |  | | | | | | | |
 | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — |
1 | 1 | 3 | 2 | 4 | 4 | — | — | 1 | — | — | — | 1 | 2 | 2 | 2 | 1 | — | — | 1 | 2 | — | — | — | |
Temp °C | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 27 | 28 | 26 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 25 |
25 | 26 | 26 | 26 | 22 | 24 | 24 | 26 | 27 | 27 | 28 | 30 | 31 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 29 | 30 | 31 | 28 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | NE 9 |
 kJ | 92 | 92 | 92 | 92 | 90 | 90 | 68 | 68 | 88 | 80 | 74 | 74 | 72 | 78 | 76 | 75 | 75 | 76 | 69 | 81 | 83 | 72 | 77 | 71 |
Swell 2 Height (m) Direction Period (s) | E 9 | N 6 | N 6 | SSE 5 | NNW 8 | NNW 8 | NNW 7 | W 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | N 6 | W 6 | W 7 | W 7 | NE 10 | NE 10 | ENE 10 | ENE 10 | NE 10 | ENE 10 | ESE 10 |
| kJ | 2 | 1 | 3 | 12 | 13 | 11 | 11 | 23 | 23 | 27 | 29 | 28 | 20 | 7 | 30 | 27 | 25 | 46 | 47 | 64 | 63 | 46 | 60 | 77 |
Swell 3 Height (m) Direction Period (s) | NE 9 | — | N 9 | NNW 6 | N 8 | E 9 | — | NNW 7 | N 8 | N 7 | N 7 | N 7 | N 7 | NE 11 | NE 10 | NE 10 | NE 10 | W 7 | WSW 7 | W 7 | W 7 | W 7 | W 6 | W 7 |
| kJ | 3 | — | 2 | 3 | 1 | 2 | — | 9 | 10 | 16 | 15 | 8 | 8 | 19 | 27 | 35 | 46 | 24 | 15 | 8 | 8 | 8 | 7 | 10 |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 5 | SW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | S 4 | SSW 4 | SW 5 | — | — | — | W 6 | SW 6 | — | — | — | — | — | — | — | — | — |
| kJ | 33 | 73 | 79 | 53 | 209 | 118 | 61 | 6 | 10 | 4 | — | — | — | 30 | 10 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 655 | 12 | 12 | 12 | 76 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 12 | 0 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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