Friday, September 4th
Surabaya, Indonesia
| Time |
Wave height |
Wave rating |
Swell period |
Swell direction |
Wind direction |
Wind speed |
Wind rating |
Total rating |
| 5:00 | 0.42m | 1 | 3.15s | 103° | 333° | 0 km/h | 4 | 1.98 |
| 6:00 | 0.42m | 1 | 3.15s | 105° | 216° | 3 km/h | 4 | 2.08 |
| 7:00 | 0.4m | 1 | 3.15s | 106° | 213° | 5 km/h | 4 | 2.11 |
| 8:00 | 0.38m | 1 | 3.15s | 106° | 178° | 6 km/h | 4 | 2.3 |
| 9:00 | 0.34m | 1 | 3.15s | 106° | 125° | 8 km/h | 4 | 2.59 |
| 10:00 | 0.32m | 1 | 3.2s | 106° | 101° | 11 km/h | 3 | 2.37 |
| 11:00 | 0.3m | 1 | 3.25s | 105° | 92° | 13 km/h | 3 | 2.33 |
| 12:00 | 0.28m | 1 | 3.3s | 104° | 93° | 13 km/h | 3 | 2.34 |
| 13:00 | 0.26m | 1 | 3.35s | 103° | 87° | 13 km/h | 3 | 2.31 |
| 14:00 | 0.26m | 1 | 3.45s | 101° | 96° | 13 km/h | 3 | 2.37 |
| 15:00 | 0.26m | 1 | 3.55s | 99° | 98° | 12 km/h | 3 | 2.39 |
| 16:00 | 0.26m | 1 | 3.65s | 97° | 103° | 11 km/h | 3 | 2.37 |
| Sunrise: 5:28 | Sunset: 17:28 |