Surf Forecasts:
How big are the waves at Yona Bay today (04 Aug):
- Morning surf: Morning surf (04 Aug, local time) - 5.5ft (1.7m), 17s period with E swell.
- Afternoon surf: Afternoon surf (04 Aug, local time) - 6ft (1.8m), 17s period with E swell.
- Evening surf: Evening surf (04 Aug, local time) - 7ft (2.2m), 17s period with E swell.
The current surf forecast for Yona Bay at 9AM is: 1.7m 17s primary swell from a East direction and 0.6m 4s secondary swell from a North-northeast direction (forecast issued at 02:00am August 04). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Aug) | 5.5ft (1.7m) | 17s |
| Afternoon (04 Aug) | 6ft (1.8m) | 17s |
| Evening (04 Aug) | 7ft (2.2m) | 17s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 23mm), heaviest during Thu afternoon. Warm (max 30°C on Tue morning, min 28°C on Tue night). Winds increasing (light winds from the ENE on Tue morning, stormy winds from the N by Thu night). | ||||||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||||||||||
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) | E 16 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | ENE 18 | E 18 | E 17 | E 17 | E 18 | E 17 | ENE 17 | ENE 18 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1101 | 1115 | 1485 | 1696 | 1696 | 1901 | 2398 | 2879 | 3404 | 2748 | 2829 | 4302 | 4600 | 5151 | 7727 | 10359 | 12366 | 12376 | 13327 | 15639 | 18765 | 20688 | 22374 | 25773 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:05PM1.91m | 10:19AM1.80m | 10:38PM1.87m | 11:15AM1.66m | 11:18PM1.82m | 12:32PM1.52m | ||||||||||||||||||
Low Tide | 4:16AM0.66m | 4:25PM0.69m | 5:06AM0.65m | 5:04PM0.88m | 6:08AM0.66m | 5:54PM1.06m | ||||||||||||||||||
 | |  | |  | | | | |  | | | | |  | |  | | | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — |
mm | 1 | 1 | 1 | 2 | — | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | 1 | 1 | 2 | 2 | 3 | 2 |
Temp °C | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 32 | 31 | 33 | 31 | 31 | 32 | 30 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | E 16 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 17 | E 16 | E 17 | E 17 | E 17 | E 17 | E 17 | ENE 18 | E 18 | E 17 | E 17 | E 18 | E 17 | ENE 17 | ENE 18 |
| kJ | 1101 | 1115 | 1485 | 1696 | 1696 | 1901 | 2398 | 2879 | 3404 | 2748 | 2829 | 4302 | 4600 | 5151 | 7727 | 10359 | 12366 | 12376 | 13327 | 15639 | 18765 | 20688 | 22374 | 25773 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 8 | SSE 8 | SSE 8 | — | — | — | S 8 | S 8 | — | SSE 8 | S 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 4 | 4 | 10 | 12 | 13 | — | — | — | 10 | 10 | — | 22 | 18 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 5 | NNE 5 | NNE 4 | NNE 4 | NNE 4 | ESE 8 | — | — | NE 5 | NE 6 | NE 6 | NE 7 | NNE 4 | — | — | — | NNE 7 | N 7 | N 8 | N 8 | N 9 | N 10 | N 10 |
| kJ | 18 | 15 | 17 | 13 | 13 | 12 | 26 | — | — | 39 | 44 | 66 | 140 | 39 | — | — | — | 385 | 698 | 1132 | 1688 | 2455 | 3336 | 5162 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 28 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 761 | 33 | 664 | 664 | 664 | 664 | 664 | 908 | 1384 | 794 | 664 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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