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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Saturday 16 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
23.5° C
(Which is 1.7°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 1PM is: 1.9m 8s primary swell from a East direction and 0.2m 7s secondary swell from a North direction (forecast issued at 08:00am May 16). An open ocean swell of 0.1m 15s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 6ft (1.9m) | 7s |
| Afternoon (16 May) | 6ft (1.9m) | 8s |
| Evening (16 May) | 6.5ft (2.0m) | 8s |
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 Sat afternoon, min 21°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat morning, light winds from the NE by Mon night). | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | |
297 | 371 | 424 | 443 | 458 | 520 | 520 | 477 | 439 | 443 | 443 | 432 | 377 | 418 | 418 | 417 | 381 | 390 | 390 | 390 | 390 | 390 | 400 | 607 | |
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 | 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 | 6:03AM1.90m | 7:14PM1.85m | 6:38AM1.95m | 7:58PM1.85m | 7:15AM1.97m | 8:44PM1.81m | ||||||||||||||||||
Low Tide | 12:40PM0.00m | 00:52AM0.70m | 1:22PM-0.08m | 1:32AM0.75m | 2:04PM-0.10m | 2:12AM0.82m | ||||||||||||||||||
 | |  | | |  | | | | | | | | |  | | | |  | | |  | | | |
 | 5:39 | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 |
 | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | 7:08 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 23 |
18 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 18 | 19 | 18 | 19 | 19 | 19 | 19 | 20 | 21 | 19 | 20 | 22 | 24 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | N 7 | N 7 | N 7 | N 7 | N 7 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 12 | SE 12 | SE 12 | SE 12 | SE 12 | — | — | E 9 |
 kJ | 5 | 4 | 4 | 4 | 4 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 15 | 15 | 14 | 6 | 6 | 6 | 6 | — | — | 607 |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 11 | SE 14 | E 15 | N 7 | SE 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 5 | 8 | 4 | 1 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 6 | SE 15 | SE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 8 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — |
| kJ | 297 | 371 | 424 | 443 | 458 | 520 | 520 | 477 | 439 | 443 | 443 | 432 | 377 | 418 | 418 | 417 | 381 | 390 | 390 | 390 | 390 | 390 | 400 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 595 | 595 | 595 | 595 | 595 | 595 | 595 | 60 | 33 | 595 | 761 | 63 | 63 | 63 | 63 | 60 | 60 | 60 | 60 | 65 | 65 | 65 | 33 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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