For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Muckle Skerry tide times and boat scrubbing days

Muckle Skerry is a UK Hydrographic Office tide station in Scotland at 58.683°, -2.917°. 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: Thu 5 Nov, Fri 6 Nov.

Next 7 days of tidal events at Muckle Skerry (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 01:47 (0.6 m) HW 08:00 (2.3 m) LW 14:02 (1.0 m) HW 20:03 (2.4 m)✅ Yes
Fri 6 NovLW 02:33 (0.5 m) HW 08:47 (2.4 m) LW 14:43 (0.9 m) HW 20:54 (2.5 m)✅ Yes
Sat 7 NovLW 03:10 (0.5 m) HW 09:27 (2.4 m) LW 15:20 (0.8 m) HW 21:38 (2.6 m)—
Sun 8 NovLW 03:44 (0.5 m) HW 10:04 (2.5 m) LW 15:56 (0.7 m) HW 22:18 (2.6 m)—
Mon 9 NovLW 04:16 (0.5 m) HW 10:38 (2.6 m) LW 16:31 (0.6 m) HW 22:56 (2.6 m)—
Tue 10 NovLW 04:49 (0.6 m) HW 11:11 (2.6 m) LW 17:06 (0.6 m) HW 23:32 (2.5 m)—
Wed 11 NovLW 05:21 (0.7 m) HW 11:42 (2.6 m) LW 17:41 (0.7 m)—

Open the Muckle Skerry monthly calendar

Planning a scrub at Muckle Skerry

  • 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.