For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Keadby tide times and boat scrubbing days

Keadby is a UK Hydrographic Office tide station in England at 53.600°, -0.733°. 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 Keadby (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:46 (3.1 m) LW 11:46 (0.1 m) HW 16:45 (3.3 m)—
Fri 6 NovLW 00:05 (0.2 m) HW 04:40 (3.6 m) LW 12:45 (0.1 m) HW 17:29 (3.6 m)—
Sat 7 NovLW 01:02 (0.2 m) HW 05:26 (3.9 m) LW 13:35 (0.1 m) HW 18:06 (3.8 m)—
Sun 8 NovLW 01:52 (0.1 m) HW 06:07 (4.1 m) LW 14:21 (0.1 m) HW 18:39 (3.9 m)—
Mon 9 NovLW 02:39 (0.1 m) HW 06:46 (4.1 m) LW 15:04 (0.1 m) HW 19:10 (4.0 m)✅ Yes
Tue 10 NovLW 03:22 (0.1 m) HW 07:24 (4.1 m) LW 15:44 (0.1 m) HW 19:42 (4.0 m)✅ Yes
Wed 11 NovLW 04:03 (0.1 m) HW 07:59 (3.9 m) LW 16:20 (0.1 m) HW 20:11 (4.0 m)✅ Yes

Open the Keadby monthly calendar

Planning a scrub at Keadby

  • 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.