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Surf Forecasts:
Yona Bay surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Sunday 31 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
24.9° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Yona Bay today (31 May):
- Morning surf: Morning surf (31 May, local time) - 2ft (0.6m), 10s period with E swell.
- Evening surf: Evening surf (31 May, local time) - 1.5ft (0.5m), 11s period with E swell.
The current surf forecast for Yona Bay at 8AM is: 0.6m 10s primary swell from a East direction (forecast issued at 02:00am May 31). An open ocean swell of 2.0m 14s is not directed at the surf break, a second open ocean swell of 0.6m 18s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 2ft (0.6m) | 10s |
| Afternoon (31 May) | - | - |
| Evening (31 May) | 1.5ft (0.5m) | 11s |
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 161mm), heaviest during Mon night. Warm (max 27°C on Sun night, min 24°C on Sun morning). Winds decreasing (extremely windy from the SE on Mon night, moderate winds from the W by Tue night). | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | ||||||||||||||||||||||
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 10 | E 10 | E 10 | E 10 | E 10 | SSE 14 | SSE 14 | E 11 | E 6 | SSE 14 | SSE 14 | SE 14 | SE 14 | SSE 14 | SE 14 | SE 14 | SSE 14 | S 14 | S 12 | SW 11 | WSW 10 | W 10 | WNW 9 | WNW 9 | |
69 | 51 | 76 | 73 | 54 | 0 | 0 | 59 | 402 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2611 | 1600 | 997 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | off | off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | |
High Tide | 6:14AM1.81m | 7:45PM1.64m | 6:41AM1.82m | 8:16PM1.64m | 7:09AM1.82m | 8:49PM1.64m | ||||||||||||||||||
Low Tide | 00:31AM0.93m | 1:06PM0.20m | 1:01AM0.96m | 1:36PM0.19m | 1:30AM0.98m | 2:06PM0.19m | ||||||||||||||||||
 |  |  | | | | |  | |  |  |  |  |  | |  | | | | | |  | | | |
 | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — |
— | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 9 | 13 | 3 | 4 | 16 | 38 | 42 | 21 | 8 | 3 | — | — | — | |
Temp °C | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 27 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 |
24 | 24 | 23 | 24 | 23 | 25 | 26 | 24 | 22 | 22 | 23 | 22 | 19 | 18 | 17 | 15 | 12 | 17 | 16 | 17 | 20 | 23 | 24 | 25 | |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 12 | SE 12 | SSE 14 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | — | — | — | — | — | — | ESE 10 | ESE 10 | ESE 10 | ESE 9 | S 10 | SSE 9 | SSE 9 |
 kJ | 723 | 657 | 646 | 1516 | 2625 | 3170 | 3549 | 4405 | 4463 | 7114 | 5524 | — | — | — | — | — | — | 1765 | 1024 | 511 | 212 | 490 | 572 | 378 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | SSE 16 | SSE 18 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 12 | SE 9 | — | ENE 10 |
| kJ | 69 | 51 | 397 | 260 | 54 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 184 | 255 | — | 36 |
Swell 3 Height (m) Direction Period (s) | ENE 12 | SSE 16 | E 10 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 12 | — | ENE 10 |
| kJ | 13 | 104 | 76 | 73 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 112 | — | 33 |
Wind waves Height (m) Direction Period (s) | N 6 | ENE 3 | ENE 4 | ENE 4 | NE 4 | ENE 5 | ENE 5 | E 11 | E 6 | SSE 14 | ESE 8 | SE 14 | SE 14 | SSE 14 | SE 14 | SE 14 | SSE 14 | S 14 | S 12 | SW 11 | WSW 10 | W 10 | WNW 9 | WNW 9 |
| kJ | 24 | 4 | 11 | 16 | 42 | 76 | 78 | 59 | 402 | 11744 | 903 | 10716 | 13415 | 16803 | 21058 | 29150 | 46061 | 41094 | 24075 | 12377 | 5669 | 2611 | 1600 | 997 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 64 | 64 | 64 | 63 | 595 | 639 | 595 | 595 | 595 | 690 | 664 | 690 | 690 | 690 | 690 | 664 | 664 | 664 | 664 | 664 | 690 | 856 | 794 | 28 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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