Snorkeling in Hanauma Bay is generally regarded as safe. However, it's best to avoid the bay 9-10 days after a full moon because that's when you are most likely to encounter box jelly fish.
| Day - Date | Sunrise | Sunset | Moon % Full | Tide | ||
|---|---|---|---|---|---|---|
| Saturday - 2/4 | 7:09 am | 6:21 pm | 86.0 | H | 2:14 am | 2 |
| L | 9:23 am | 0.2 | ||||
| H | 1:54 pm | 0.7 | ||||
| L | 7:28 pm | -0.2 | ||||
| Sunday - 2/5 | 7:09 am | 6:21 pm | 92.3 | H | 12:17 am | 2.1 |
| L | 7:16 am | 0.1 | ||||
| H | 12:05 pm | 0.8 | ||||
| L | 5:39 pm | -0.2 | ||||
| Monday - 2/6 | 7:08 am | 6:22 pm | 97.0 | H | 12:50 am | 2.2 |
| L | 7:43 am | 0 | ||||
| H | 12:47 pm | 0.9 | ||||
| L | 6:22 pm | -0.3 | ||||
| Tuesday - 2/7 | 7:08 am | 6:22 pm | 99.6 | H | 1:24 am | 2.2 |
| L | 8:11 am | -0.1 | ||||
| H | 1:31 pm | 1 | ||||
| L | 7:08 pm | -0.2 | ||||
| Wednesday - 2/8 | 7:07 am | 6:23 pm | 99.8 | H | 4:29 am | 2.1 |
| L | 11:11 am | -0.1 | ||||
| H | 4:48 pm | 1.1 | ||||
| L | 10:25 pm | -0.1 | ||||
| Thursday - 2/9 | 7:07 am | 6:23 pm | 97.4 | H | 5:03 am | 2 |
| L | 11:42 am | -0.2 | ||||
| H | 5:36 pm | 1.3 | ||||
| L | 11:17 pm | 0 | ||||
| Friday - 2/10 | 7:06 am | 6:24 pm | 92.5 | H | 5:38 am | 1.8 |
| L | 12:14 pm | -0.2 | ||||
| H | 6:30 pm | 1.4 | ||||
| Saturday - 2/11 | 7:06 am | 6:25 pm | 85.3 | L | 12:15 am | 0.2 |
| H | 6:14 am | 1.5 | ||||
| L | 12:49 pm | -0.2 | ||||
| H | 7:30 pm | 1.5 | ||||