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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 19 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
23.3° C
(Which is 2.1°C colder than average for this time of year)| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | - | - |
| Afternoon (20 May) | - | - |
| Evening (20 May) | 5ft (1.5m) | 8s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Fri afternoon. Warm (max 26°C on Wed afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
E 8 | E 8 | ESE 8 | WSW 2 | ESE 8 | NE 8 | ENE 8 | ESE 10 | ESE 10 | ESE 10 | SW 3 | W 4 | ESE 10 | E 12 | SW 4 | WSW 6 | E 11 | W 7 | W 7 | E 11 | W 6 | W 6 | W 6 | NNW 4 | |
298 | 302 | 0 | 1 | 0 | 17 | 7 | 0 | 0 | 0 | 1 | 1 | 0 | 3 | 16 | 37 | 2 | 64 | 50 | 2 | 41 | 38 | 26 | 4 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | glassy | glassy | glassy | |
High Tide | 9:32PM1.74m | 8:37AM1.88m | 10:24PM1.67m | 9:25AM1.78m | 11:22PM1.59m | 10:22AM1.64m | ||||||||||||||||||
Low Tide | 2:56AM0.88m | 3:37PM0.05m | 3:47AM0.94m | 4:29PM0.19m | 4:48AM0.99m | |||||||||||||||||||
 |  | | | | | |  | | | | | | | | | |  | |  |  | |  | | |
 | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — |
 | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | 7:09 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | |
Temp °C | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 24 | 24 | 23 | 23 |
28 | 28 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 25 | 25 | 25 | 26 | 26 | 27 | 28 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 |
 kJ | 298 | 302 | 270 | 270 | 250 | 216 | 271 | 248 | 248 | 210 | 210 | 201 | 166 | 166 | 166 | 166 | 166 | 166 | 135 | 123 | 123 | 120 | 126 | 126 |
Swell 2 Height (m) Direction Period (s) | SE 11 | — | — | — | — | NE 8 | ENE 8 | — | — | — | — | W 4 | — | E 12 | — | E 11 | — | — | W 7 | — | W 6 | W 6 | W 6 | W 6 |
| kJ | 5 | — | — | — | — | 17 | 7 | — | — | — | — | 1 | — | 3 | — | 3 | — | — | 50 | — | 41 | 38 | 26 | 19 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 11 | E 11 | — | E 11 | SSW 4 | E 10 | — | NNW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 2 | 5 | 2 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 2 | — | WSW 3 | — | — | — | — | SW 3 | S 3 | S 4 | SW 4 | SW 4 | WSW 6 | WSW 6 | W 7 | SSW 3 | WSW 7 | SW 7 | — | — | — |
| kJ | — | — | — | 1 | — | 1 | — | — | — | — | 1 | 3 | 9 | 16 | 16 | 37 | 56 | 64 | 7 | 82 | 46 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 44 | 28 | 76 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Yona Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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