Dads Weather Shed
| Porthdinllaen Tide Tables |
| (All times are shown in GMT) |
| Day | Tide | Time | Height | Day | Tide | Time | Height | Day | Tide | Time | Height |
| Saturday | Low | 00:26 | 1.53m | Saturday | High | 06:14 | 3.77m | Saturday | Low | 13:03 | 1.38m |
| Saturday | High | 18:43 | 3.96m | Sunday | Low | 01:29 | 1.22m | Sunday | High | 07:11 | 4.13m |
| Sunday | Low | 14:01 | 0.94m | Sunday | High | 19:37 | 4.28m | Monday | Low | 02:21 | 0.86m |
| Monday | High | 07:59 | 4.50m | Monday | Low | 14:51 | 0.51m | Monday | High | 20:25 | 4.58m |
| Tuesday | Low | 03:09 | 0.53m | Tuesday | High | 08:43 | 4.84m | Tuesday | Low | 15:38 | 0.16m |
| Tuesday | High | 21:09 | 4.80m | Wednesday | Low | 03:52 | 0.27m | Wednesday | High | 09:26 | 5.08m |
| Wednesday | Low | 16:23 | -0.07m | Wednesday | High | 21:53 | 4.91m | Thursday | Low | 04:36 | 0.13m |
| Thursday | High | 10:09 | 5.20m | Thursday | Low | 17:09 | -0.12m | Thursday | High | 22:35 | 4.88m |
| Friday | Low | 05:21 | 0.14m | Friday | High | 10:53 | 5.16m | Friday | Low | 17:55 | 0.00m |
