For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Shirehampton tide times and boat scrubbing days

Shirehampton is a UK Hydrographic Office tide station in England at 51.483°, -2.683°. 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: Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.

Next 7 days of tidal events at Shirehampton (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:48 (10.3 m) LW 10:36 (2.3 m) HW 16:11 (11.0 m) LW 23:12 (2.0 m)—
Fri 6 NovHW 04:42 (11.1 m) LW 11:33 (1.8 m) HW 17:03 (11.7 m)—
Sat 7 NovLW 00:06 (1.5 m) HW 05:29 (11.8 m) LW 12:26 (1.4 m) HW 17:49 (12.1 m)—
Sun 8 NovLW 00:55 (1.3 m) HW 06:13 (12.2 m) LW 13:15 (1.2 m) HW 18:31 (12.3 m)—
Mon 9 NovLW 01:42 (1.2 m) HW 06:51 (12.3 m) LW 14:01 (1.2 m) HW 19:10 (12.3 m)✅ Yes
Tue 10 NovLW 02:26 (1.3 m) HW 07:28 (12.2 m) LW 14:44 (1.4 m) HW 19:45 (12.0 m)✅ Yes
Wed 11 NovLW 03:03 (1.5 m) HW 08:01 (12.0 m) LW 15:19 (1.6 m) HW 20:18 (11.7 m)✅ Yes

Open the Shirehampton monthly calendar

Planning a scrub at Shirehampton

  • 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.