For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

WARSASH tide times and boat scrubbing days

WARSASH is a UK Hydrographic Office tide station in England at 50.850°, -1.300°. 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 WARSASH (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 01:05 (1.8 m) HW 07:22 (4.1 m) HW 10:13 (4.3 m) LW 13:33 (1.8 m) HW 19:42 (4.0 m) HW 22:42 (4.1 m)✅ Yes
Fri 6 NovLW 01:54 (1.6 m) HW 08:18 (4.3 m) HW 11:09 (4.4 m) LW 14:20 (1.6 m) HW 20:34 (4.2 m) HW 23:36 (4.2 m)✅ Yes
Sat 7 NovLW 02:39 (1.4 m) HW 09:02 (4.4 m) HW 12:00 (4.5 m) LW 15:03 (1.4 m) HW 22:06 (4.3 m) HW 23:54 (4.4 m)—
Sun 8 NovLW 03:21 (1.3 m) HW 10:39 (4.5 m) HW 12:09 (4.5 m) LW 15:43 (1.2 m) HW 22:40 (4.4 m)—
Mon 9 NovHW 00:35 (4.4 m) LW 04:01 (1.2 m) HW 11:08 (4.5 m) HW 12:04 (4.5 m) LW 16:23 (1.2 m) HW 23:24 (4.4 m)—
Tue 10 NovHW 00:59 (4.4 m) LW 04:40 (1.3 m) HW 10:51 (4.4 m) HW 13:56 (4.4 m) LW 17:01 (1.2 m) HW 23:12 (4.3 m)—
Wed 11 NovHW 02:18 (4.3 m) LW 05:18 (1.4 m) HW 12:12 (4.5 m) HW 12:52 (4.5 m) LW 17:35 (1.3 m) HW 23:50 (4.3 m)—

Open the WARSASH monthly calendar

Planning a scrub at WARSASH

  • 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.