Surf Forecasts:
How big are the waves at Yona Bay today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 1ft (0.3m), 8s period with ENE swell.
- Evening surf: Evening surf (21 Aug, local time) - 1ft (0.3m), 8s period with ENE swell.
The current surf forecast for Yona Bay at 7PM is: 0.3m 8s primary swell from a East-northeast direction (forecast issued at 02:00pm August 21). An open ocean swell of 0.2m 11s is not directed at the surf break, a second open ocean swell of 2.1m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 1ft (0.3m) | 8s |
| Evening (21 Aug) | 1ft (0.3m) | 8s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Fri afternoon. Warm (max 28°C on Sat morning, min 27°C on Fri afternoon). Mainly strong winds. | ||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | E 14 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 14 | E 14 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 12 | 12 | 14 | 14 | 14 | 8 | 8 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 19 | 32 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off |
High Tide | 2:08PM1.31m | 00:12AM1.61m | 5:30PM1.40m | 1:52AM1.53m | 5:59PM1.52m | |||||||||||||||
Low Tide | 5:33PM1.26m | 8:42AM0.81m | 8:14PM1.38m | 10:14AM0.74m | ||||||||||||||||
 | | |  |  | | |  | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — |
 | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — |
mm | 1 | 2 | 1 | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 27 | 28 | 28 | 30 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 12 | 12 | 14 | 14 | 14 | 8 | 8 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 301 | 281 | 200 | 258 | 258 | 210 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 11 | E 14 | E 14 | E 10 | E 8 | E 9 | E 9 | ENE 9 | ESE 12 | SE 10 | SE 10 | E 14 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ESE 13 | ESE 12 |
| kJ | 11 | 11 | 11 | 4 | 4 | 2 | 1 | 6 | 6 | 15 | 14 | 25 | 15 | 15 | 16 | 16 | 16 | 15 | 34 | 52 |
Swell 3 Height (m) Direction Period (s) | SE 10 | E 14 | E 14 | E 14 | — | — | — | E 14 | — | E 10 | SE 10 | ESE 13 | E 13 | E 16 | E 14 | ESE 14 | ESE 13 | ESE 13 | ENE 10 | ENE 10 |
| kJ | 4 | 4 | 4 | 4 | — | — | — | 16 | — | 7 | 4 | 33 | 14 | 5 | 16 | 41 | 35 | 34 | 19 | 32 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | S 8 | S 8 | SSE 8 | SSE 8 | S 9 | S 9 | SSE 9 | S 9 | S 9 | S 10 | S 10 | S 10 | ESE 5 | ESE 5 | SE 5 | ESE 5 | ESE 5 | ESE 5 |
| kJ | 375 | 405 | 475 | 566 | 607 | 1001 | 1064 | 1089 | 913 | 775 | 665 | 593 | 464 | 474 | 35 | 50 | 74 | 42 | 51 | 53 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 676 | 595 | 595 | 595 | 595 | 595 | 595 | 655 | 595 | 937 | 595 | 66 | 66 | 66 | 66 | 595 | 595 | 794 | 595 | 66 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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