For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Lochmaddy tide times and boat scrubbing days

Lochmaddy is a UK Hydrographic Office tide station in Scotland at 57.600°, -7.150°. 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.

4 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, Sun 13 Sept, Mon 14 Sept.

Next 7 days of tidal events at Lochmaddy (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptLW 01:34 (0.5 m) HW 07:29 (4.8 m) LW 13:38 (0.8 m) HW 19:38 (5.2 m)✅ Yes
Sat 12 SeptLW 02:11 (0.4 m) HW 08:02 (4.9 m) LW 14:15 (0.7 m) HW 20:09 (5.2 m)✅ Yes
Sun 13 SeptLW 02:47 (0.5 m) HW 08:31 (4.8 m) LW 14:52 (0.7 m) HW 20:39 (5.0 m)✅ Yes
Mon 14 SeptLW 03:22 (0.6 m) HW 09:00 (4.7 m) LW 15:28 (0.9 m) HW 21:08 (4.7 m)✅ Yes
Tue 15 SeptLW 03:54 (0.9 m) HW 09:28 (4.4 m) LW 16:02 (1.1 m) HW 21:37 (4.4 m)
Wed 16 SeptLW 04:25 (1.2 m) HW 09:59 (4.2 m) LW 16:36 (1.4 m) HW 22:09 (4.0 m)
Thu 17 SeptLW 04:58 (1.5 m) HW 10:35 (3.9 m) LW 17:13 (1.7 m) HW 22:49 (3.6 m)

Open the Lochmaddy monthly calendar

Planning a scrub at Lochmaddy

  • 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.