Surf Forecasts:
How big are the waves at Yona Bay today (23 Aug):
- Afternoon surf: Afternoon surf (23 Aug, local time) - 2.5ft (0.7m), 9s period with E swell.
- Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.4m), 10s period with ENE swell.
The current surf forecast for Yona Bay at 9PM is: 0.4m 10s primary swell from a East-northeast direction (forecast issued at 02:00pm August 23). An open ocean swell of 0.7m 10s is not directed at the surf break, a second open ocean swell of 0.4m 12s is not directed at the surf break, a second open ocean swell of 0.7m 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 (23 Aug) | - | - |
| Afternoon (23 Aug) | 2.5ft (0.7m) | 9s |
| Evening (23 Aug) | 1.5ft (0.4m) | 10s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 82mm), heaviest during Wed morning. Warm (max 29°C on Tue morning, min 27°C on Sun night). Winds increasing (light winds from the ESE on Sun night, stormy winds from the WNW by Tue night). | ||||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | ||||||||||||||||||
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 9 | E 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ESE 16 | ESE 15 | E 6 | E 6 | E 7 | ENE 7 | E 17 | E 17 | E 16 | E 16 | E 16 | E 16 | E 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 26 | 78 | 31 | 32 | 31 | 31 | 41 | 0 | 0 | 73 | 81 | 86 | 121 | 6410 | 8916 | 9679 | 11570 | 15625 | 21409 | 16059 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:59PM1.52m | 3:46AM1.55m | 6:20PM1.63m | 4:52AM1.64m | 6:39PM1.73m | |||||||||||||||
Low Tide | 10:14AM0.74m | 10:49PM1.33m | 11:09AM0.64m | 11:39PM1.22m | 11:48AM0.53m | |||||||||||||||
 | | |  | |  |  |  | |  | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — |
 | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:54 | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 | 27 |
Feels °C | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 29 | 30 | 30 | 30 | 31 | 28 | 29 | 29 | 29 | 27 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | ESE 13 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | E 16 | E 17 | E 17 | E 17 | E 16 | E 16 | E 16 | E 16 | E 15 |
| kJ | 138 | 115 | 94 | 92 | 71 | 52 | 135 | 196 | 487 | 1417 | 1940 | 2440 | 3727 | 6410 | 8916 | 9679 | 11570 | 15625 | 21409 | 16059 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | ESE 12 | ESE 12 | ESE 13 | SW 9 | SW 8 | ESE 12 | SW 9 | SW 9 | E 7 | SW 9 | ENE 10 | — | SW 9 | — | — | — | — |
| kJ | 39 | 27 | 27 | 52 | 60 | 96 | 50 | 45 | 94 | 30 | 29 | 86 | 28 | 64 | — | 40 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ESE 13 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ESE 12 | SW 10 | ENE 10 | ENE 10 | ENE 10 | — | — | — | — | — | — | — | — |
| kJ | 26 | 35 | 31 | 32 | 31 | 31 | 41 | 81 | 46 | 42 | 40 | 56 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 4 | E 9 | E 4 | ESE 4 | E 4 | E 5 | E 5 | E 6 | E 6 | E 6 | E 6 | — | ENE 7 | — | ENE 10 | — | — | — | — | NNE 8 |
| kJ | 8 | 78 | 12 | 19 | 20 | 21 | 33 | 41 | 68 | 73 | 81 | — | 121 | — | 63 | — | — | — | — | 1365 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 66 | 66 | 66 | 66 | 66 | 64 | 64 | 59 | 66 | 66 | 60 | 64 | 33 | 33 | 88 | 595 | 88 | 595 | 595 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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