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.
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: Fri 11 Sept, Sat 12 Sept.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 03:32 (0.8 m) HW 08:16 (12.2 m) LW 15:53 (0.8 m) HW 20:33 (12.6 m) | ✅ Yes |
| Sat 12 Sept | LW 04:23 (0.7 m) HW 08:57 (12.4 m) LW 16:42 (0.7 m) HW 21:13 (12.7 m) | ✅ Yes |
| Sun 13 Sept | LW 05:07 (0.7 m) HW 09:35 (12.3 m) LW 17:20 (0.8 m) HW 21:49 (12.4 m) | — |
| Mon 14 Sept | LW 05:38 (0.9 m) HW 10:08 (11.9 m) LW 17:48 (1.0 m) HW 22:20 (11.8 m) | — |
| Tue 15 Sept | LW 06:00 (1.2 m) HW 10:36 (11.3 m) LW 18:05 (1.3 m) HW 22:47 (11.1 m) | — |
| Wed 16 Sept | LW 06:10 (1.4 m) HW 11:00 (10.7 m) LW 18:15 (1.5 m) HW 23:10 (10.4 m) | — |
| Thu 17 Sept | LW 06:20 (1.6 m) HW 11:23 (9.9 m) LW 18:31 (1.7 m) HW 23:35 (9.5 m) | — |
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.