Nigels Weather Island
| Trefor Tide Tables |
| (All times are shown in GMT) |
| Day | Tide | Time | Height | Day | Tide | Time | Height | Day | Tide | Time | Height |
| Friday | High | 00:07 | 4.44m | Friday | Low | 07:12 | 1.09m | Friday | High | 12:39 | 3.90m |
| Friday | Low | 19:23 | 1.43m | Saturday | High | 00:50 | 4.23m | Saturday | Low | 07:55 | 1.28m |
| Saturday | High | 13:23 | 3.71m | Saturday | Low | 20:08 | 1.63m | Sunday | High | 01:34 | 4.02m |
| Sunday | Low | 08:43 | 1.47m | Sunday | High | 14:14 | 3.54m | Sunday | Low | 21:00 | 1.83m |
| Monday | High | 02:26 | 3.81m | Monday | Low | 09:37 | 1.64m | Monday | High | 15:13 | 3.41m |
| Monday | Low | 22:00 | 1.97m | Tuesday | High | 03:29 | 3.65m | Tuesday | Low | 10:38 | 1.75m |
| Tuesday | High | 16:22 | 3.39m | Tuesday | Low | 23:09 | 2.01m | Wednesday | High | 04:38 | 3.58m |
| Wednesday | Low | 11:40 | 1.76m | Wednesday | High | 17:28 | 3.48m | Thursday | Low | 00:12 | 1.93m |
| Thursday | High | 05:43 | 3.63m | Thursday | Low | 12:37 | 1.69m | Thursday | High | 18:25 | 3.67m |
