For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Alloa tide times and boat scrubbing days

Alloa is a UK Hydrographic Office tide station in Scotland at 56.100°, -3.800°. 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.

3 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: Tue 15 Sept, Wed 16 Sept, Thu 17 Sept.

Next 7 days of tidal events at Alloa (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptHW 04:03 (5.8 m) LW 10:18 (-0.4 m) HW 16:28 (5.7 m) LW 22:19 (0.2 m)
Sat 12 SeptHW 04:47 (5.9 m) LW 10:52 HW 17:08 (5.7 m) LW 22:52 (0.1 m)
Sun 13 SeptHW 05:28 (5.9 m) LW 11:21 (-0.3 m) HW 17:47 (5.6 m) LW 23:20 (0.2 m)
Mon 14 SeptHW 06:07 (5.7 m) LW 11:44 (-0.1 m) HW 18:23 (5.4 m) LW 23:36 (0.3 m)
Tue 15 SeptHW 06:44 (5.5 m) LW 11:57 (0.3 m) HW 18:58 (5.1 m) LW 23:46 (0.6 m)✅ Yes
Wed 16 SeptHW 07:21 (5.1 m) LW 12:09 HW 19:33 (4.8 m)✅ Yes
Thu 17 SeptLW 00:08 HW 07:59 (4.7 m) LW 12:30 HW 20:08 (4.5 m)✅ Yes
Fri 18 SeptLW 00:38

Open the Alloa monthly calendar

Planning a scrub at Alloa

  • 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.