Sea Mills tide times and boat scrubbing days
Sea Mills is a UK Hydrographic Office tide station in England at 51.483°, -2.650°. 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.
3 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: Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 03:53 (9.6 m) LW 10:59 (1.7 m) HW 16:16 (10.2 m) LW 23:36 (1.5 m) | — |
| Fri 6 Nov | HW 04:47 (10.4 m) LW 11:58 (1.4 m) HW 17:08 (10.9 m) | — |
| Sat 7 Nov | LW 00:31 (1.3 m) HW 05:34 (11.0 m) LW 12:52 (1.2 m) HW 17:54 (11.4 m) | — |
| Sun 8 Nov | LW 01:21 (1.1 m) HW 06:18 (11.5 m) LW 13:42 (1.1 m) HW 18:36 (11.6 m) | — |
| Mon 9 Nov | LW 02:10 (1.1 m) HW 06:56 (11.6 m) LW 14:29 (1.1 m) HW 19:15 (11.6 m) | ✅ Yes |
| Tue 10 Nov | LW 02:54 (1.1 m) HW 07:33 (11.5 m) LW 15:13 (1.2 m) HW 19:50 (11.3 m) | ✅ Yes |
| Wed 11 Nov | LW 03:32 (1.3 m) HW 08:06 (11.3 m) LW 15:48 (1.3 m) HW 20:23 (10.9 m) | ✅ Yes |
Open the Sea Mills monthly calendar
Planning a scrub at Sea Mills
- 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.