Cemaes Bay tide times and boat scrubbing days
Cemaes Bay is a UK Hydrographic Office tide station in Wales at 53.417°, -4.450°. This page lists the next 7 days of official Admiralty high and low water predictions and flags the mornings when high water falls in the 06:30 to 09:00 scrubbing window. The interactive calendar extends this to a full month with harmonic predictions.
2 mornings in the next 7 days have a high water between 06:30 and 09:00, the ideal window to put a boat on the scrubbing grid or posts: Thu 5 Nov, Fri 6 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | LW 01:40 (1.5 m) HW 07:51 (5.8 m) LW 13:57 (2.0 m) HW 20:01 (6.2 m) | ✅ Yes |
| Fri 6 Nov | LW 02:32 (1.4 m) HW 08:37 (6.0 m) LW 14:46 (1.7 m) HW 20:47 (6.4 m) | ✅ Yes |
| Sat 7 Nov | LW 03:16 (1.2 m) HW 09:14 (6.2 m) LW 15:29 (1.5 m) HW 21:26 (6.5 m) | — |
| Sun 8 Nov | LW 03:53 (1.2 m) HW 09:49 (6.4 m) LW 16:06 (1.3 m) HW 22:02 (6.5 m) | — |
| Mon 9 Nov | LW 04:29 (1.2 m) HW 10:22 (6.5 m) LW 16:43 (1.3 m) HW 22:38 (6.4 m) | — |
| Tue 10 Nov | LW 05:03 (1.3 m) HW 10:55 (6.5 m) LW 17:19 (1.3 m) HW 23:13 (6.3 m) | — |
| Wed 11 Nov | LW 05:36 (1.4 m) HW 11:28 (6.4 m) LW 17:54 (1.5 m) HW 23:48 (6.1 m) | — |
Open the Cemaes Bay monthly calendar
Planning a scrub at Cemaes Bay
- Aim for a high water between 06:30 and 09:00 so the boat dries out through the morning and refloats on the afternoon flood.
- Spring tides (around new and full moon) give a larger range and more working time on the grid.
- Check the height of high water against the depth of your grid or posts; neap tides may not float a deep-keeled yacht on.
- Predictions beyond 7 days are harmonic estimates. Confirm dates against official tide tables before committing a crane or grid booking.