Nigels Weather Island
| Trefor Tide Tables |
| (All times are shown in GMT) |
| Day | Tide | Time | Height | Day | Tide | Time | Height | Day | Tide | Time | Height |
| Thursday | Low | 04:35 | 0.26m | Thursday | High | 10:04 | 5.33m | Thursday | Low | 17:00 | 0.17m |
| Thursday | High | 22:28 | 4.88m | Friday | Low | 05:15 | 0.32m | Friday | High | 10:44 | 5.18m |
| Friday | Low | 17:39 | 0.38m | Friday | High | 23:05 | 4.72m | Saturday | Low | 05:57 | 0.51m |
| Saturday | High | 11:25 | 4.89m | Saturday | Low | 18:19 | 0.69m | Saturday | High | 23:45 | 4.47m |
| Sunday | Low | 06:39 | 0.81m | Sunday | High | 12:07 | 4.49m | Sunday | Low | 19:01 | 1.07m |
| Monday | High | 00:25 | 4.16m | Monday | Low | 07:24 | 1.18m | Monday | High | 12:52 | 4.04m |
| Monday | Low | 19:44 | 1.49m | Tuesday | High | 01:09 | 3.82m | Tuesday | Low | 08:17 | 1.57m |
| Tuesday | High | 13:44 | 3.58m | Tuesday | Low | 20:37 | 1.90m | Wednesday | High | 02:06 | 3.48m |
| Wednesday | Low | 09:27 | 1.91m | Wednesday | High | 15:00 | 3.20m | Wednesday | Low | 21:53 | 2.22m |
