Surf Forecasts:
How big are the waves at Yona Bay today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 1.5ft (0.4m), 11s period with ENE swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 1.5ft (0.4m), 11s period with ENE swell.
The current surf forecast for Yona Bay at 9AM is: 0.4m 11s primary swell from a East-northeast direction (forecast issued at 02:00am August 31). An open ocean swell of 0.5m 9s is not directed at the surf break, a second open ocean swell of 1.4m 7s 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 Aug) | 1.5ft (0.4m) | 11s |
| Afternoon (31 Aug) | 1.5ft (0.4m) | 11s |
| Evening (31 Aug) | - | - |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 56mm), heaviest during Wed night. Warm (max 28°C on Mon morning, min 26°C on Wed afternoon). Winds decreasing (strong winds from the ESE on Wed morning, light winds from the SSE by Wed night). | ||||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | E 15 | E 15 | E 15 | ESE 9 | E 14 | ENE 14 | ENE 14 | E 14 | ENE 13 | ENE 12 | ENE 12 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 43 | 42 | 40 | 40 | 40 | 40 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 18 | 0 | 16 | 36 | 36 | 15 | 33 | 50 | 50 | 432 | 392 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | off | off | off | off | off | off | cross-off |
High Tide | 8:41AM2.03m | 8:55PM2.00m | 9:21AM1.95m | 9:24PM1.98m | 10:07AM1.82m | |||||||||||||||||||
Low Tide | 2:34AM0.50m | 2:50PM0.51m | 3:09AM0.44m | 3:22PM0.64m | 3:50AM0.44m | 3:55PM0.81m | ||||||||||||||||||
 |  | |  | | |  | |  | | | | | | | | | | | | |  |  | | |
 | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — |
 | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — |
mm | — | — | — | — | — | — | 1 | — | 1 | — | — | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 3 | 2 | 3 | 1 | 6 | 24 |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 |
Feels °C | 28 | 28 | 27 | 27 | 29 | 28 | 27 | 28 | 28 | 26 | 26 | 28 | 28 | 28 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | SSW 9 | S 9 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 8 | SSW 8 | SSW 8 | S 8 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 10 | SW 10 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 70 | 50 | 50 | 45 | 54 | 37 | 37 | 24 | 23 | 14 | 12 | 12 | 13 | 13 | 11 | 39 | 65 | 80 | 98 | 122 | 145 | 178 | 204 | 204 |
Swell 2 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | WSW 9 | SW 9 | SW 8 | SW 8 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | S 8 | S 8 | S 8 | E 14 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | E 11 |
| kJ | 43 | 42 | 40 | 40 | 40 | 40 | 8 | 14 | 11 | 11 | 14 | 15 | 15 | 15 | 14 | 11 | 12 | 11 | 15 | 33 | 50 | 50 | 48 | 65 |
Swell 3 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 10 | S 8 | SW 9 | SW 9 | — | — | SW 9 | S 8 | S 8 | E 15 | E 15 | E 15 | SW 9 | E 14 | ENE 14 | ENE 14 | — | — | — | — | — | E 11 |
| kJ | 13 | 13 | 14 | 12 | 13 | 13 | — | — | 13 | 5 | 5 | 18 | 18 | 18 | 13 | 16 | 36 | 36 | — | — | — | — | — | 91 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 |
| kJ | 118 | 108 | 125 | 183 | 298 | 418 | 523 | 575 | 686 | 858 | 949 | 908 | 1057 | 1236 | 1131 | 1027 | 929 | 915 | 985 | 893 | 702 | 548 | 432 | 392 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 66 | 66 | 66 | 628 | 64 | 935 | 889 | 595 | 681 | 595 | 595 | 794 | 595 | 664 | 664 | 595 | 595 | 66 | 66 | 66 | 80 | 66 | 35 | 28 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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