The tide timetable below is calculated from Holyhead, Wales but is also suitable for estimating tide times in the following locations:
- Trearddur Bay (0km/0mi)
- Holyhead (2.5km/1.6mi)
- Porth Trecastell (12.5km/7.8mi)
- Cemaes Bay (18.9km/11.8mi)
- Llanddwyn Island (22.4km/14mi)
- Amlwch (25.5km/15.9mi)
- Porth Dinlläen (25.6km/16mi)
- Benllech (27.5km/17.2mi)
- Moelfre (29km/18.1mi)
- Caernarfon (31.2km/19.5mi)