For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Ardchattan Point tide times and boat scrubbing days

Ardchattan Point is a UK Hydrographic Office tide station in Scotland at 56.467°, -5.283°. 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 Ardchattan Point (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptLW 03:04 (0.4 m) HW 08:39 (2.0 m) LW 15:01 (0.3 m) HW 20:44 (2.1 m)✅ Yes
Sat 12 SeptLW 03:41 (0.4 m) HW 09:09 (2.0 m) LW 15:41 (0.3 m) HW 21:16 (2.1 m)
Sun 13 SeptLW 04:15 (0.4 m) HW 09:39 (2.0 m) LW 16:19 (0.3 m) HW 21:46 (2.1 m)
Mon 14 SeptLW 04:46 (0.4 m) HW 10:08 (2.0 m) LW 16:52 (0.4 m) HW 22:15 (2.0 m)
Tue 15 SeptLW 05:16 (0.5 m) HW 10:35 (1.9 m) LW 17:24 (0.5 m) HW 22:43 (1.9 m)
Wed 16 SeptLW 05:47 (0.6 m) HW 11:03 (1.9 m) LW 17:57 (0.6 m) HW 23:11 (1.8 m)
Thu 17 SeptLW 06:23 (0.7 m) HW 11:36 (1.8 m) LW 18:34 (0.7 m) HW 23:40 (1.7 m)

Open the Ardchattan Point monthly calendar

Planning a scrub at Ardchattan Point

  • 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.