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 | Low | 04:58 | 0.10m | Friday | High | 10:30 | 5.33m | Friday | Low | 17:27 | 0.15m |
| Friday | High | 22:53 | 5.03m | Saturday | Low | 05:45 | 0.25m | Saturday | High | 11:17 | 5.08m |
| Saturday | Low | 18:14 | 0.46m | Saturday | High | 23:39 | 4.78m | Sunday | Low | 06:34 | 0.53m |
| Sunday | High | 12:07 | 4.68m | Sunday | Low | 19:03 | 0.86m | Monday | High | 00:28 | 4.45m |
| Monday | Low | 07:27 | 0.89m | Monday | High | 13:02 | 4.20m | Monday | Low | 19:57 | 1.30m |
| Tuesday | High | 01:23 | 4.08m | Tuesday | Low | 08:29 | 1.27m | Tuesday | High | 14:09 | 3.73m |
| Tuesday | Low | 21:04 | 1.71m | Wednesday | High | 02:32 | 3.74m | Wednesday | Low | 09:47 | 1.58m |
| Wednesday | High | 15:38 | 3.41m | Wednesday | Low | 22:27 | 1.96m | Thursday | High | 03:59 | 3.56m |
| Thursday | Low | 11:14 | 1.69m | Thursday | High | 17:16 | 3.38m | Thursday | Low | 23:49 | 1.98m |
