For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Inward Rocks tide times and boat scrubbing days

Inward Rocks is a UK Hydrographic Office tide station in England at 51.650°, -2.617°. 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: Sun 8 Nov, Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.

Next 7 days of tidal events at Inward Rocks (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 04:08 (10.0 m) LW 11:16 (1.7 m) HW 16:31 (10.6 m) LW 23:52 (1.4 m)—
Fri 6 NovHW 05:02 (10.8 m) LW 12:13 (1.2 m) HW 17:23 (11.3 m)—
Sat 7 NovLW 00:46 (0.9 m) HW 05:49 (11.4 m) LW 13:06 (0.8 m) HW 18:09 (11.8 m)—
Sun 8 NovLW 01:32 (0.7 m) HW 06:33 (11.9 m) LW 13:50 (0.6 m) HW 18:51 (12.0 m)✅ Yes
Mon 9 NovLW 02:15 (0.6 m) HW 07:11 (12.0 m) LW 14:32 (0.6 m) HW 19:30 (12.0 m)✅ Yes
Tue 10 NovLW 02:54 (0.7 m) HW 07:48 (11.9 m) LW 15:10 (0.8 m) HW 20:05 (11.7 m)✅ Yes
Wed 11 NovLW 03:27 (0.9 m) HW 08:21 (11.7 m) LW 15:42 (1.0 m) HW 20:38 (11.3 m)✅ Yes

Open the Inward Rocks monthly calendar

Planning a scrub at Inward Rocks

  • 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.