The tide timetable below is calculated from Holyhead, Wales but is also suitable for estimating tide times in the following locations:
- Holyhead (1.2km/0.8mi)
- Trearddur Bay (2.2km/1.4mi)
- Porth Tre-castell (16.1km/10mi)
- Cemaes Bay (17.1km/10.7mi)
- Amlwch (23.6km/14.8mi)
- Llanddwyn Island (24.6km/15.4mi)
- Benllech (25.7km/16mi)
- Moelfre (27.1km/16.9mi)
- Porth Dinlläen (27.8km/17.4mi)
- Caernarfon (33.5km/20.9mi)