For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Halfway Shoal tide times and boat scrubbing days

Halfway Shoal is a UK Hydrographic Office tide station in England at 54.017°, -3.200°. 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.

2 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: Thu 5 Nov, Fri 6 Nov.

Next 7 days of tidal events at Halfway Shoal (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 02:28 (2.0 m) HW 08:10 (7.8 m) LW 14:46 (2.3 m) HW 20:27 (8.2 m)✅ Yes
Fri 6 NovLW 03:20 (1.6 m) HW 08:59 (8.2 m) LW 15:36 (2.0 m) HW 21:15 (8.5 m)✅ Yes
Sat 7 NovLW 04:05 (1.4 m) HW 09:41 (8.5 m) LW 16:19 (1.7 m) HW 21:57 (8.7 m)—
Sun 8 NovLW 04:44 (1.3 m) HW 10:19 (8.6 m) LW 16:58 (1.6 m) HW 22:36 (8.7 m)—
Mon 9 NovLW 05:20 (1.4 m) HW 10:54 (8.7 m) LW 17:34 (1.6 m) HW 23:13 (8.7 m)—
Tue 10 NovLW 05:52 (1.5 m) HW 11:29 (8.7 m) LW 18:07 (1.7 m) HW 23:48 (8.5 m)—
Wed 11 NovLW 06:22 (1.7 m) HW 12:02 (8.6 m) LW 18:39 (1.8 m)—

Open the Halfway Shoal monthly calendar

Planning a scrub at Halfway Shoal

  • 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.