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.

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.

Next 7 days of tidal events at Keadby (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptLW 03:55 (-0.0 m) HW 07:58 (4.5 m) LW 16:33 (-0.2 m) HW 20:41 (4.3 m)✅ Yes
Sat 12 SeptLW 04:42 (-0.1 m) HW 08:37 (4.7 m) LW 17:20 (-0.2 m) HW 21:15 (4.3 m)✅ Yes
Sun 13 SeptLW 05:25 (-0.1 m) HW 09:14 (4.8 m) LW 17:52 (-0.2 m) HW 21:48 (4.2 m)
Mon 14 SeptLW 05:55 (-0.1 m) HW 09:51 (4.6 m) LW 18:20 (-0.1 m) HW 22:19 (4.0 m)
Tue 15 SeptLW 06:22 (-0.0 m) HW 10:26 (4.3 m) LW 18:44 (-0.0 m) HW 22:47 (3.7 m)
Wed 16 SeptLW 06:45 (0.0 m) HW 11:00 (3.8 m) LW 19:06 (0.0 m) HW 23:13 (3.4 m)
Thu 17 SeptLW 07:09 (0.1 m) HW 11:33 (3.2 m) LW 19:30 (0.1 m) HW 23:43 (2.9 m)

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.