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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Sunday 10 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 10PM is: 1.8m 8s primary swell from a East direction and 0.3m 6s secondary swell from a North-northwest direction (forecast issued at 02:00pm May 10). An open ocean swell of 0.3m 13s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | - | - |
| Afternoon (10 May) | 5.5ft (1.7m) | 9s |
| Evening (10 May) | 6ft (1.8m) | 8s |
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 97mm), heaviest during Mon morning. Warm (max 24°C on Tue afternoon, min 21°C on Sun afternoon). Winds decreasing (fresh winds from the E on Mon afternoon, light winds from the SW by Tue night). | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 8 | E 8 | N 6 | N 5 | N 5 | N 5 | N 6 | E 7 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SW 4 | E 10 | E 10 | E 10 | |
417 | 450 | 493 | 381 | 428 | 2 | 2 | 2 | 1 | 1 | 342 | 422 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 231 | 186 | 186 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | |
High Tide | 12:25PM1.31m | 2:47AM1.45m | 2:27PM1.34m | 3:37AM1.54m | 3:51PM1.46m | 4:17AM1.63m | ||||||||||||||||||
Low Tide | 7:35PM0.61m | 8:53AM0.92m | 8:54PM0.63m | 9:52AM0.73m | 9:57PM0.62m | |||||||||||||||||||
 | | |  | | | |  | | | |  | | |  | | | |  | | |  | |  | |
 | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — |
 | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | 7:05 |
1 | 1 | 1 | — | — | — | 5 | 11 | 30 | 20 | 11 | 2 | 3 | 2 | 2 | 2 | 5 | 2 | — | — | — | — | — | — | |
Temp °C | 20 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
18 | 18 | 18 | 18 | 20 | 21 | 20 | 21 | 19 | 18 | 18 | 18 | 19 | 20 | 22 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 24 | 25 | |
Swell 1 Height (m) Direction Period (s) | N 6 | NNW 6 | NNW 6 | NNW 6 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SSE 10 | — | S 12 | SE 9 | SE 9 | S 11 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 10 | E 10 | E 10 |
 kJ | 20 | 13 | 7 | 7 | 25 | 23 | 23 | 35 | 19 | 19 | 16 | 10 | — | 3 | 3 | 3 | 2 | 287 | 243 | 248 | 225 | 231 | 186 | 186 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 15 | SE 13 | SE 13 | N 6 | N 6 | N 5 | N 5 | N 5 | N 6 | N 6 | — | — | — | — | S 11 | — | SE 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 4 | 4 | 7 | 27 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | — | — | — | — | 2 | — | 3 | 6 | 7 | 3 | 7 | 7 | 13 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 5 | — | N 6 | — | — | — | — | — | — | — | — | — | — | S 11 | — | — | — | — | WSW 4 | W 4 |
| kJ | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 1 | 1 |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | ESE 9 | E 10 | E 7 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | — | — | — | SW 4 | WSW 4 | — | — |
| kJ | 417 | 450 | 493 | 381 | 428 | 367 | 331 | 339 | 326 | 423 | 342 | 422 | 463 | 404 | 341 | 307 | 281 | — | — | — | 2 | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 60 | 60 | 59 | 595 | 595 | 595 | 595 | 655 | 664 | 74 | 92 | 595 | 595 | 595 | 595 | 595 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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