For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

St. Thomas's Head tide times and boat scrubbing days

St. Thomas's Head is a UK Hydrographic Office tide station in England at 51.400°, -2.933°. 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.

Next 7 days of tidal events at St. Thomas's Head (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:48 (10.8 m) LW 09:48 (2.9 m) HW 16:11 (11.4 m) LW 22:22 (2.4 m)—
Fri 6 NovHW 04:42 (11.5 m) LW 10:42 (2.2 m) HW 17:03 (12.0 m) LW 23:13 (1.8 m)—
Sat 7 NovHW 05:29 (12.1 m) LW 11:32 (1.6 m) HW 17:49 (12.5 m) LW 23:59 (1.5 m)—
Sun 8 NovHW 06:13 (12.5 m) LW 12:18 (1.4 m) HW 18:31 (12.7 m)—
Mon 9 NovLW 00:44 (1.4 m) HW 06:51 (12.6 m) LW 13:02 (1.4 m) HW 19:10 (12.6 m)✅ Yes
Tue 10 NovLW 01:25 (1.5 m) HW 07:28 (12.6 m) LW 13:42 (1.6 m) HW 19:45 (12.4 m)✅ Yes
Wed 11 NovLW 02:00 (1.8 m) HW 08:01 (12.3 m) LW 14:15 (2.0 m) HW 20:18 (12.0 m)✅ Yes

Open the St. Thomas's Head monthly calendar

Planning a scrub at St. Thomas's Head

  • 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.