Surf Forecasts:
How big are the waves at Yona Bay today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 2.5ft (0.7m), 9s period with E swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 1.5ft (0.5m), 12s period with ENE swell.
- Evening surf: Evening surf (18 Sep, local time) - 2.5ft (0.7m), 9s period with E swell.
The current surf forecast for Yona Bay at 7AM is: 0.5m 12s primary swell from a East-northeast direction and 0.7m 9s secondary swell from a East direction (forecast issued at 02:00am September 18). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 2.5ft (0.7m) | 9s |
| Afternoon (18 Sep) | 1.5ft (0.5m) | 12s |
| Evening (18 Sep) | 2.5ft (0.7m) | 9s |
Table - waves today at Yona Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 28°C on Fri morning, min 26°C on Sun night). Winds increasing (light winds from the NNE on Fri morning, fresh winds from the N by Sun afternoon). | ||||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||||
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) | ENE 13 | ENE 13 | E 9 | E 9 | E 9 | ENE 12 | E 9 | E 9 | ENE 12 | E 10 | E 10 | ENE 11 | E 10 | E 15 | E 13 | E 16 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | ENE 12 | ENE 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 133 | 95 | 87 | 83 | 83 | 82 | 82 | 81 | 81 | 94 | 71 | 107 | 88 | 150 | 417 | 1531 | 1984 | 1762 | 1659 | 1468 | 1356 | 1312 | 1316 | 1485 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:54PM1.80m | 11:25AM1.42m | 10:21PM1.68m | 1:10PM1.32m | 10:56PM1.55m | 4:50PM1.40m | ||||||||||||||||||
Low Tide | 4:56AM0.63m | 4:13PM1.14m | 5:54AM0.74m | 4:35PM1.27m | 7:30AM0.81m | 8:06PM1.37m | ||||||||||||||||||
 | | |  | | | |  | | | | | | | | |  | | | |  | | | | |
 | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — |
 | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:27 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 31 | 31 | 31 | 32 | 31 | 31 | 28 | 29 | 30 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 9 | E 9 | E 8 | E 10 | E 10 | E 10 | E 10 | ENE 11 | E 13 | E 16 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | ENE 12 | ENE 12 |
| kJ | 83 | 80 | 74 | 74 | 74 | 52 | 73 | 74 | 68 | 94 | 67 | 67 | 88 | 149 | 417 | 1531 | 1984 | 1762 | 1659 | 1468 | 1356 | 1312 | 1316 | 1485 |
Swell 2 Height (m) Direction Period (s) | N 7 | N 7 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | E 9 | E 16 | NE 10 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 38 | 36 | 87 | 83 | 83 | 82 | 82 | 81 | 81 | 78 | 71 | 107 | 70 | 61 | 347 | 79 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 13 | N 7 | N 7 | N 7 | N 6 | N 6 | S 8 | N 8 | N 8 | N 7 | S 8 | ENE 9 | E 15 | NE 10 | N 9 | N 9 | — | N 7 | — | N 9 | — | NNW 8 | NNW 8 |
| kJ | 133 | 95 | 23 | 23 | 21 | 13 | 12 | 22 | 22 | 19 | 15 | 22 | 31 | 150 | 104 | 25 | 13 | — | 9 | — | 6 | — | 13 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 6 | NE 3 | — | N 3 | N 7 | N 6 | N 4 | N 4 | NNE 4 | N 8 | N 8 | N 7 | N 7 | N 9 | N 8 | N 8 | N 8 |
| kJ | — | — | — | — | — | — | — | 7 | 7 | — | 1 | 22 | 28 | 9 | 15 | 25 | 90 | 76 | 65 | 44 | 74 | 68 | 46 | 111 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 35 | 63 | 74 | 63 | 65 | 595 | 28 | 65 | 595 | 595 | 595 | 595 | 595 | 28 | 33 | 28 | 595 | 595 | 738 | 597 | 595 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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