For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Port Appin tide times and boat scrubbing days

Port Appin is a UK Hydrographic Office tide station in Scotland at 56.550°, -5.417°. 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.

5 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, Tue 15 Sept.

Next 7 days of tidal events at Port Appin (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptHW 06:44 (4.1 m) LW 12:27 (0.5 m) HW 18:49 (4.4 m)✅ Yes
Sat 12 SeptLW 01:01 (0.8 m) HW 07:14 (4.2 m) LW 13:01 (0.5 m) HW 19:21 (4.4 m)✅ Yes
Sun 13 SeptLW 01:31 (0.8 m) HW 07:44 (4.2 m) LW 13:35 (0.6 m) HW 19:51 (4.4 m)✅ Yes
Mon 14 SeptLW 02:05 (0.9 m) HW 08:13 (4.1 m) LW 14:11 (0.8 m) HW 20:20 (4.2 m)✅ Yes
Tue 15 SeptLW 02:38 (1.1 m) HW 08:40 (4.0 m) LW 14:47 (1.0 m) HW 20:48 (3.9 m)✅ Yes
Wed 16 SeptLW 03:12 (1.3 m) HW 09:08 (3.8 m) LW 15:23 (1.4 m) HW 21:16 (3.7 m)
Thu 17 SeptLW 03:52 (1.6 m) HW 09:41 (3.6 m) LW 16:05 (1.7 m) HW 21:45 (3.4 m)

Open the Port Appin monthly calendar

Planning a scrub at Port Appin

  • 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.