Nigels Weather Island
| Trefor Tide Tables |
| (All times are shown in GMT) |
| Day | Tide | Time | Height | Day | Tide | Time | Height | Day | Tide | Time | Height |
| Tuesday | Low | 05:27 | 0.83m | Tuesday | High | 10:56 | 5.08m | Tuesday | Low | 17:58 | 0.69m |
| Tuesday | High | 23:31 | 4.68m | Wednesday | Low | 06:21 | 1.09m | Wednesday | High | 11:50 | 4.88m |
| Wednesday | Low | 18:56 | 0.90m | Thursday | High | 00:32 | 4.35m | Thursday | Low | 07:18 | 1.37m |
| Thursday | High | 12:47 | 4.64m | Thursday | Low | 19:59 | 1.14m | Friday | High | 01:37 | 4.03m |
| Friday | Low | 08:21 | 1.64m | Friday | High | 13:52 | 4.38m | Friday | Low | 21:07 | 1.36m |
| Saturday | High | 02:51 | 3.79m | Saturday | Low | 09:30 | 1.84m | Saturday | High | 15:03 | 4.18m |
| Saturday | Low | 22:18 | 1.50m | Sunday | High | 04:07 | 3.69m | Sunday | Low | 10:42 | 1.93m |
| Sunday | High | 16:16 | 4.06m | Sunday | Low | 23:24 | 1.56m | Monday | High | 05:17 | 3.73m |
| Monday | Low | 11:49 | 1.90m | Monday | High | 17:23 | 4.04m | Thursday | Low | 01:00 | 0.00m |
