For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

West Mersea tide times and boat scrubbing days

West Mersea is a UK Hydrographic Office tide station in England at 51.783°, 0.900°. 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.

One morning in the next 7 days has 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.

Next 7 days of tidal events at West Mersea (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 02:34 (1.4 m) HW 08:47 (4.4 m) LW 15:27 (0.6 m) HW 21:25 (4.8 m)✅ Yes
Fri 6 NovLW 03:43 (1.2 m) HW 09:46 (4.7 m) LW 16:28 (0.6 m) HW 22:17 (4.9 m)—
Sat 7 NovLW 04:38 (1.1 m) HW 10:34 (4.9 m) LW 17:16 (0.6 m) HW 23:02 (5.0 m)—
Sun 8 NovLW 05:25 (1.0 m) HW 11:16 (5.1 m) LW 17:55 (0.7 m) HW 23:41 (5.0 m)—
Mon 9 NovLW 06:07 (0.9 m) HW 11:54 (5.2 m) LW 18:23 (0.7 m)—
Tue 10 NovHW 00:18 (5.0 m) LW 06:40 (0.8 m) HW 12:30 (5.2 m) LW 18:51 (0.8 m)—
Wed 11 NovHW 00:50 (5.0 m) LW 07:14 (0.7 m) HW 13:02 (5.2 m) LW 19:19 (0.9 m)—

Open the West Mersea monthly calendar

Planning a scrub at West Mersea

  • 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.