Surf Forecasts:
How big are the waves at Yona Bay today (08 Sep):
- Morning surf: Morning surf (08 Sep, local time) - 5.5ft (1.7m), 9s period with NNW swell.
- Afternoon surf: Afternoon surf (08 Sep, local time) - 5ft (1.6m), 9s period with NNW swell.
- Evening surf: Evening surf (08 Sep, local time) - 5ft (1.6m), 8s period with NNW swell.
The current surf forecast for Yona Bay at 5AM is: 1.6m 8s primary swell from a North-northwest direction and 0.5m 9s secondary swell from a Northeast direction (forecast issued at 08:00pm September 07). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Sep) | 5.5ft (1.7m) | 9s |
| Afternoon (08 Sep) | 5ft (1.6m) | 9s |
| Evening (08 Sep) | 5ft (1.6m) | 8s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Tue morning. Warm (max 28°C on Thu afternoon, min 27°C on Mon night). Winds decreasing (fresh winds from the NNW on Tue afternoon, light winds from the E by Thu afternoon). | ||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||||
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) | NNW 10 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 426 | 383 | 358 | 346 | 346 | 436 | 436 | 422 | 363 | 314 | 246 | 253 | 294 | 350 | 310 | 273 | 229 | 192 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:27PM1.67m | 4:22AM1.75m | 6:01PM1.79m | 5:23AM1.89m | 6:31PM1.88m | |||||||||||||
Low Tide | 10:49PM1.14m | 11:17AM0.41m | 11:38PM0.96m | 12:03PM0.33m | ||||||||||||||
 |  |  | | |  |  | | | | | | | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — |
 | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — |
mm | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | E 9 | S 8 | NNW 8 | NNW 8 |
| kJ | 96 | 77 | 76 | 41 | 29 | 27 | 26 | 34 | 33 | 41 | 35 | 24 | 25 | 16 | 25 | 10 | 229 | 192 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | S 8 | S 8 | S 8 | E 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | E 9 | S 8 | ENE 9 | S 8 | E 9 |
| kJ | 31 | 20 | 23 | 23 | 22 | 25 | 20 | 20 | 12 | 11 | 11 | 10 | 10 | 14 | 10 | 16 | 10 | 25 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 8 | E 8 | E 8 | E 9 | S 8 | E 9 | E 9 | E 7 | ESE 10 | ESE 10 | E 9 | E 9 | S 8 | NE 8 | ENE 8 | ENE 9 | ESE 9 |
| kJ | 23 | 23 | 20 | 21 | 23 | 21 | 14 | 14 | 4 | 11 | 10 | 6 | 15 | 10 | 9 | 6 | 16 | 17 |
Wind waves Height (m) Direction Period (s) | NNW 10 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | — |
| kJ | 426 | 383 | 358 | 346 | 346 | 436 | 436 | 422 | 363 | 314 | 246 | 253 | 294 | 350 | 310 | 273 | 109 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 595 | 595 | 595 | 74 | 595 | 595 | 693 | 717 | 717 | 664 | 664 | 597 | 597 | 595 | 595 | 595 | 595 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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