For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Cumberland Basin Entrance tide times and boat scrubbing days

Cumberland Basin Entrance is a UK Hydrographic Office tide station in England at 51.450°, -2.617°. 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: Fri 11 Sept.

Next 7 days of tidal events at Cumberland Basin Entrance (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptHW 08:21 (10.7 m) HW 20:38 (11.1 m)✅ Yes
Sat 12 SeptHW 09:02 (10.9 m) HW 21:18 (11.2 m)
Sun 13 SeptHW 09:40 (10.8 m) HW 21:54 (10.9 m)
Mon 14 SeptHW 10:13 (10.4 m) HW 22:25 (10.3 m)
Tue 15 SeptHW 10:41 (9.8 m) HW 22:52 (9.6 m)
Wed 16 SeptHW 11:05 (9.2 m) HW 23:15 (8.9 m)
Thu 17 SeptHW 11:28 (8.4 m) HW 23:40 (8.0 m)

Open the Cumberland Basin Entrance monthly calendar

Planning a scrub at Cumberland Basin Entrance

  • 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.