Surf Forecasts:
How big are the waves at Yona Bay today (11 Aug):
- Evening surf: Evening surf (11 Aug, local time) - 4.5ft (1.4m), 13s period with E swell.
The current surf forecast for Yona Bay at 12AM is: 1.0m 12s primary swell from a East direction (forecast issued at 08:00pm August 10). An open ocean swell of 1.4m 10s is not directed at the surf break, a second open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | - | - |
| Afternoon (11 Aug) | - | - |
| Evening (11 Aug) | 4.5ft (1.4m) | 13s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 21mm), heaviest during Tue morning. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||
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 13 | E 13 | E 12 | E 12 | E 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 673 | 643 | 314 | 304 | 299 | 240 | 240 | 254 | 254 | 250 | 193 | 183 | 176 | 135 | 133 | 130 | 83 | 116 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | cross-off | cross | glassy | off | off |
High Tide | 6:24PM1.78m | 5:22AM1.93m | 6:59PM1.87m | 6:14AM2.04m | 7:31PM1.94m | |||||||||||||
Low Tide | 11:45PM1.10m | 12:18PM0.23m | 00:30AM0.96m | 12:59PM0.17m | ||||||||||||||
 |  | |  |  | | |  | | | | | | | | | |  | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | 7:08 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — |
mm | 1 | 2 | 2 | — | — | 3 | 1 | — | 1 | 1 | 1 | — | 2 | 3 | 2 | 1 | 2 | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 27 | 27 |
Feels °C | 31 | 31 | 30 | 31 | 32 | 31 | 31 | 33 | 32 | 32 | 32 | 33 | 30 | 32 | 32 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 13 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 |
| kJ | 673 | 400 | 394 | 394 | 204 | 200 | 194 | 211 | 262 | 255 | 211 | 202 | 164 | 162 | 129 | 126 | 123 | 119 |
Swell 2 Height (m) Direction Period (s) | S 10 | SW 11 | E 12 | E 12 | E 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 |
| kJ | 392 | 110 | 314 | 304 | 299 | 240 | 240 | 254 | 254 | 250 | 193 | 183 | 176 | 135 | 133 | 130 | 83 | 116 |
Swell 3 Height (m) Direction Period (s) | SW 11 | W 9 | SW 11 | SW 10 | SSW 11 | SSW 10 | E 6 | E 6 | WSW 10 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | SW 9 | ESE 6 | SW 9 |
| kJ | 114 | 41 | 71 | 50 | 214 | 157 | 61 | 59 | 38 | 46 | 34 | 25 | 24 | 17 | 16 | 28 | 10 | 26 |
Wind waves Height (m) Direction Period (s) | — | E 13 | E 6 | E 6 | E 6 | E 6 | — | E 6 | E 6 | — | — | — | — | — | — | E 6 | — | — |
| kJ | — | 643 | 59 | 66 | 76 | 63 | — | 88 | 59 | — | — | — | — | — | — | 15 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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