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.
No high water falls between 06:30 and 09:00 in the next 7 days. The monthly calendar shows the next suitable scrubbing mornings.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 05:44 (0.6 m) HW 11:37 (6.6 m) LW 17:52 (0.9 m) HW 23:48 (7.0 m) | — |
| Sat 12 Sept | LW 06:21 (0.5 m) HW 12:12 (6.6 m) LW 18:29 (0.8 m) | — |
| Sun 13 Sept | HW 00:25 (7.0 m) LW 06:57 (0.6 m) HW 12:48 (6.6 m) LW 19:05 (0.8 m) | — |
| Mon 14 Sept | HW 01:02 (6.9 m) LW 07:32 (0.8 m) HW 13:23 (6.4 m) LW 19:41 (1.1 m) | — |
| Tue 15 Sept | HW 01:38 (6.6 m) LW 08:07 (1.2 m) HW 13:56 (6.2 m) LW 20:17 (1.4 m) | — |
| Wed 16 Sept | HW 02:13 (6.2 m) LW 08:42 (1.5 m) HW 14:31 (5.9 m) LW 20:56 (1.8 m) | — |
| Thu 17 Sept | HW 02:51 (5.8 m) LW 09:18 (2.0 m) HW 15:10 (5.6 m) LW 21:38 (2.2 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.