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 | 04:54 | 0.68m | Thursday | High | 10:22 | 4.61m | Thursday | Low | 17:05 | 0.85m |
| Thursday | High | 22:32 | 4.83m | Friday | Low | 05:26 | 0.83m | Friday | High | 10:51 | 4.50m |
| Friday | Low | 17:39 | 1.00m | Friday | High | 23:04 | 4.64m | Saturday | Low | 05:59 | 1.03m |
| Saturday | High | 11:23 | 4.35m | Saturday | Low | 18:14 | 1.22m | Saturday | High | 23:39 | 4.39m |
| Sunday | Low | 06:33 | 1.28m | Sunday | High | 11:56 | 4.15m | Sunday | Low | 18:52 | 1.48m |
| Monday | High | 00:15 | 4.10m | Monday | Low | 07:10 | 1.57m | Monday | High | 12:34 | 3.92m |
| Monday | Low | 19:36 | 1.77m | Tuesday | High | 00:59 | 3.77m | Tuesday | Low | 07:53 | 1.89m |
| Tuesday | High | 13:22 | 3.66m | Tuesday | Low | 20:31 | 2.05m | Wednesday | High | 01:56 | 3.44m |
| Wednesday | Low | 08:52 | 2.19m | Wednesday | High | 14:30 | 3.42m | Wednesday | Low | 21:49 | 2.23m |
