For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

GRIMSBY tide times and boat scrubbing days

GRIMSBY is a UK Hydrographic Office tide station in England at 53.583°, -0.067°. 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: Wed 11 Nov.

Next 7 days of tidal events at GRIMSBY (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 02:09 (6.2 m) LW 08:51 (1.7 m) HW 15:11 (6.3 m) LW 21:04 (2.3 m)—
Fri 6 NovHW 03:05 (6.5 m) LW 09:41 (1.5 m) HW 15:57 (6.6 m) LW 21:54 (2.0 m)—
Sat 7 NovHW 03:53 (6.8 m) LW 10:24 (1.4 m) HW 16:34 (6.7 m) LW 22:38 (1.7 m)—
Sun 8 NovHW 04:35 (6.9 m) LW 11:03 (1.4 m) HW 17:07 (6.8 m) LW 23:19 (1.6 m)—
Mon 9 NovHW 05:14 (6.9 m) LW 11:39 (1.4 m) HW 17:39 (6.9 m) LW 23:56 (1.5 m)—
Tue 10 NovHW 05:53 (6.9 m) LW 12:13 (1.5 m) HW 18:11 (6.9 m)—
Wed 11 NovLW 00:30 (1.5 m) HW 06:31 (6.8 m) LW 12:45 (1.6 m) HW 18:42 (6.8 m)✅ Yes

Open the GRIMSBY monthly calendar

Planning a scrub at GRIMSBY

  • 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.