For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

St. Tudwal's Roads tide times and boat scrubbing days

St. Tudwal's Roads is a UK Hydrographic Office tide station in Wales at 52.817°, -4.483°. 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 St. Tudwal's Roads (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 04:29 (3.7 m) LW 11:36 (1.5 m) HW 16:40 (4.1 m)—
Fri 6 NovLW 00:16 (0.9 m) HW 05:27 (3.9 m) LW 12:32 (1.2 m) HW 17:36 (4.2 m)—
Sat 7 NovLW 01:06 (0.8 m) HW 06:15 (4.2 m) LW 13:21 (1.0 m) HW 18:24 (4.4 m)—
Sun 8 NovLW 01:49 (0.6 m) HW 06:57 (4.3 m) LW 14:05 (0.8 m) HW 19:08 (4.5 m)✅ Yes
Mon 9 NovLW 02:29 (0.6 m) HW 07:37 (4.5 m) LW 14:46 (0.6 m) HW 19:50 (4.5 m)✅ Yes
Tue 10 NovLW 03:06 (0.6 m) HW 08:17 (4.5 m) LW 15:26 (0.6 m) HW 20:32 (4.4 m)✅ Yes
Wed 11 NovLW 03:41 (0.7 m) HW 08:56 (4.5 m) LW 16:05 (0.6 m) HW 21:14 (4.3 m)✅ Yes

Open the St. Tudwal's Roads monthly calendar

Planning a scrub at St. Tudwal's Roads

  • 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.