Surf Forecasts:
How big are the waves at Yona Bay today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 18ft (5.5m), 17s period with E swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 18ft (5.5m), 16s period with E swell.
- Evening surf: Evening surf (25 Aug, local time) - 15ft (4.5m), 13s period with ENE swell.
The current surf forecast for Yona Bay at 3PM is: 5.5m 16s primary swell from a East direction and 2.4m 7s secondary swell from a North direction (forecast issued at 08:00am August 25). The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | 18ft (5.5m) | 17s |
| Afternoon (25 Aug) | 18ft (5.5m) | 16s |
| Evening (25 Aug) | 15ft (4.5m) | 13s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 35mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Winds decreasing (severe gales from the WNW on Tue night, moderate winds from the SSE by Thu afternoon). | ||||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||||
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 |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 17 | E 17 | E 16 | E 16 | E 14 | ENE 13 | N 10 | W 8 | NW 9 | NW 10 | NW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 12441 | 15366 | 17011 | 15007 | 11844 | 7284 | 2879 | 1832 | 664 | 810 | 524 | 508 | 445 | 651 | 932 | 918 | 808 | 800 | 1060 | 1030 | 1288 | 1236 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | 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 |
High Tide | 4:52AM1.64m | 6:39PM1.73m | 5:37AM1.75m | 6:58PM1.81m | 6:16AM1.86m | 7:19PM1.88m | ||||||||||||||||
Low Tide | 11:48AM0.53m | 00:10AM1.10m | 12:21PM0.44m | 00:37AM0.97m | 12:51PM0.38m | |||||||||||||||||
 |  |  | | |  |  | | | | | | | | |  | |  | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:52 | — |
mm | — | — | 2 | 4 | 3 | 5 | 7 | 1 | 2 | 3 | 2 | 2 | 1 | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 28 | 28 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 |
Feels °C | 28 | 27 | 28 | 23 | 22 | 19 | 20 | 20 | 25 | 23 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 27 | 29 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | E 17 | E 17 | E 16 | E 16 | E 14 | ENE 13 | N 10 | N 10 | NW 9 | NW 10 | NW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 11 |
| kJ | 12441 | 15366 | 17011 | 15007 | 11844 | 7284 | 2879 | 1217 | 664 | 810 | 524 | 508 | 445 | 651 | 932 | 918 | 808 | 800 | 1060 | 1030 | 1288 | 1236 |
Swell 2 Height (m) Direction Period (s) | — | SW 9 | — | — | SW 9 | — | E 12 | NW 9 | N 10 | E 10 | W 8 | E 9 | E 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | E 7 | SW 8 | E 12 | ENE 12 |
| kJ | — | 40 | — | — | 20 | — | 1435 | 539 | 384 | 204 | 187 | 104 | 73 | 66 | 67 | 85 | 60 | 57 | 39 | 77 | 76 | 48 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | ENE 15 | E 12 | E 11 | E 15 | E 10 | ENE 14 | ENE 14 | ENE 13 | E 13 | E 13 | E 13 | E 13 | ENE 13 | E 7 | E 7 | E 16 |
| kJ | — | — | — | — | — | — | 500 | 411 | 317 | 38 | 116 | 37 | 61 | 35 | 89 | 87 | 87 | 85 | 55 | 25 | 17 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | N 7 | N 8 | NNW 9 | WNW 7 | W 8 | WSW 8 | SW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | S 7 | SSW 7 | S 7 | S 7 | SSE 6 | SSE 6 | SSE 6 | SE 6 |
| kJ | — | — | — | 602 | 1148 | 2323 | 1187 | 1832 | 1342 | 1157 | 929 | 686 | 520 | 432 | 480 | 503 | 411 | 326 | 198 | 156 | 114 | 190 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 595 | 677 | 677 | 655 | 664 | 664 | 664 | 664 | 664 | 655 | 664 | 664 | 595 | 655 | 664 | 655 | 664 | 664 | 664 | 664 | 54 | 628 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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