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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Saturday 30 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
24.8° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Yona Bay today (30 May):
- Morning surf: Morning surf (30 May, local time) - 2ft (0.6m), 10s period with E swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1.5ft (0.5m), 10s period with E swell.
- Evening surf: Evening surf (30 May, local time) - 1.5ft (0.5m), 10s period with E swell.
The current surf forecast for Yona Bay at 5PM is: 0.5m 10s primary swell from a East direction and 0.6m 6s secondary swell from a North direction, 0.4m 6s secondary swell from a North-northeast direction (forecast issued at 08:00am May 30). An open ocean swell of 1.0m 14s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 2ft (0.6m) | 10s |
| Afternoon (30 May) | 1.5ft (0.5m) | 10s |
| Evening (30 May) | 1.5ft (0.5m) | 10s |
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 153mm), heaviest during Mon night. Warm (max 26°C on Mon afternoon, min 23°C on Sat morning). Winds increasing (light winds from the NNE on Sat morning, stormy winds from the ESE by Mon night). | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 | N 6 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSE 14 | SSE 15 | SSE 15 | ENE 7 | E 8 | E 8 | E 9 | E 9 | E 10 | SE 14 | SE 14 | SE 14 | SSE 14 | SSE 14 | |
67 | 68 | 38 | 47 | 48 | 44 | 69 | 73 | 76 | 78 | 0 | 0 | 0 | 497 | 1075 | 1486 | 1736 | 2224 | 2833 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | 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 | off | off | |
High Tide | 5:46AM1.79m | 7:12PM1.63m | 6:14AM1.81m | 7:45PM1.64m | 6:41AM1.82m | 8:16PM1.64m | ||||||||||||||||||
Low Tide | 12:36PM0.24m | 00:31AM0.93m | 1:06PM0.20m | 1:01AM0.96m | 1:36PM0.19m | 1:30AM0.98m | ||||||||||||||||||
 | | | | |  | |  |  |  | | | |  |  |  |  | |  |  | |  | | | |
 | 5:33 | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 |
 | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | 7:15 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 15 | 14 | 11 | 3 | 11 | 29 | 34 | 27 | |
Temp °C | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 26 |
23 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 21 | 21 | 19 | 19 | 20 | 18 | 18 | 16 | 13 | 13 | 15 | |
Swell 1 Height (m) Direction Period (s) | E 10 | N 6 | N 6 | N 6 | SE 14 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 14 | SSE 14 | SSE 15 | SSE 15 | SSE 15 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | — | — | — | — | — |
 kJ | 67 | 33 | 38 | 28 | 357 | 552 | 723 | 657 | 646 | 1516 | 2346 | 3503 | 4636 | 5797 | 8112 | 10092 | 10543 | 9972 | 11893 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | NE 11 | E 10 | E 10 | E 10 | N 6 | N 6 | E 10 | E 10 | SSE 16 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 68 | 46 | 47 | 27 | 25 | 69 | 73 | 387 | 78 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 6 | SSE 9 | SE 9 | SE 14 | E 10 | E 10 | ENE 12 | SSE 16 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 8 | 13 | 99 | 48 | 44 | 13 | 104 | 76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | N 6 | N 7 | N 6 | NNE 6 | N 6 | N 6 | ENE 3 | ENE 4 | NE 4 | ENE 5 | ENE 5 | ENE 6 | ENE 7 | E 8 | E 8 | E 9 | E 9 | E 10 | SE 14 | SE 14 | SE 14 | SSE 14 | SSE 14 |
| kJ | 31 | 10 | 14 | 13 | 12 | 18 | 24 | 4 | 11 | 28 | 84 | 123 | 231 | 497 | 1075 | 1486 | 1736 | 2224 | 2833 | 23745 | 31836 | 38468 | 45586 | 29467 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 74 | 74 | 595 | 595 | 0 | 0 | 0 | 64 | 64 | 595 | 595 | 922 | 920 | 920 | 664 | 595 | 664 | 690 | 595 | 595 | 690 | 664 | 664 | 664 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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