For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Ramsey Sound tide times and boat scrubbing days

Ramsey Sound is a UK Hydrographic Office tide station in Wales at 51.883°, -5.317°. 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: Tue 10 Nov, Wed 11 Nov.

Next 7 days of tidal events at Ramsey Sound (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:29 (4.3 m) LW 09:48 (1.7 m) HW 15:52 (4.6 m) LW 22:22 (1.4 m)—
Fri 6 NovHW 04:22 (4.6 m) LW 10:38 (1.4 m) HW 16:41 (4.8 m) LW 23:07 (1.2 m)—
Sat 7 NovHW 05:06 (4.8 m) LW 11:21 (1.2 m) HW 17:24 (4.9 m) LW 23:45 (1.1 m)—
Sun 8 NovHW 05:45 (4.9 m) LW 12:00 (1.1 m) HW 18:02 (5.0 m)—
Mon 9 NovLW 00:21 (1.1 m) HW 06:21 (5.0 m) LW 12:35 (1.1 m) HW 18:38 (5.0 m)—
Tue 10 NovLW 00:53 (1.1 m) HW 06:55 (5.0 m) LW 13:09 (1.1 m) HW 19:12 (4.9 m)✅ Yes
Wed 11 NovLW 01:25 (1.2 m) HW 07:28 (4.9 m) LW 13:42 (1.3 m) HW 19:44 (4.8 m)✅ Yes

Open the Ramsey Sound monthly calendar

Planning a scrub at Ramsey Sound

  • 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.