First-hand data, observed automatically every morning
Source: this site's automatic 06:00 JST observation of sea conditions at Cape Maeda. Not official data.
Typhoon season begins; excellent when no typhoon is around. Every year is different — check the 7-day forecast on the home page before you go.
| Date | Call | Prob. | Waves | Wind |
|---|---|---|---|---|
| 07/07 | ○ | 95% | 0.6 m | 3 m/s |
| 07/08 | △ | 66% | 0.8 m | 6 m/s |
| 07/09 | × | 40% | 1.2 m | 10 m/s |
| 07/10 | × | 0% | 2.6 m | 19 m/s |
| 07/11 | × | 0% | 3.0 m | 20 m/s |
| 07/12 | × | 0% | 1.8 m | 10 m/s |
| 07/13 | △ | 66% | 1.0 m | 7 m/s |
| 07/14 | ○ | 87% | 0.8 m | 4 m/s |
| 07/15 | ○ | 89% | 0.6 m | 5 m/s |
| 07/16 | ○ | 89% | 0.6 m | 5 m/s |
| 07/17 | ○ | 84% | 0.7 m | 5 m/s |
| 07/18 | ○ | 83% | 0.8 m | 5 m/s |
| 07/19 | ○ | 91% | 0.7 m | 3 m/s |
| 07/20 | ○ | 92% | 0.6 m | 4 m/s |
| 07/21 | ○ | 94% | 0.5 m | 4 m/s |
| 07/22 | ○ | 95% | 0.4 m | 2 m/s |
| 07/23 | ○ | 95% | 0.3 m | 4 m/s |
| 07/24 | ○ | 92% | 0.4 m | 5 m/s |
| 07/25 | ○ | 95% | 0.4 m | 4 m/s |
| 07/26 | ○ | 95% | 0.4 m | 2 m/s |
| 07/27 | ○ | 94% | 0.5 m | 4 m/s |
| 07/28 | ○ | 95% | 0.3 m | 5 m/s |
| 07/29 | ○ | 95% | 0.3 m | 4 m/s |
| 07/30 | ○ | 95% | 0.3 m | 2 m/s |
| 07/31 | ○ | 95% | 0.2 m | 3 m/s |