For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

St. Germans tide times and boat scrubbing days

St. Germans is a UK Hydrographic Office tide station in England at 50.383°, -4.300°. 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.

5 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: Fri 11 Sept, Sat 12 Sept, Sun 13 Sept, Mon 14 Sept, Tue 15 Sept.

Next 7 days of tidal events at St. Germans (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptLW 01:00 (0.8 m) HW 06:46 (5.1 m) LW 13:18 (0.8 m) HW 18:56 (5.4 m)✅ Yes
Sat 12 SeptLW 01:41 (0.6 m) HW 07:26 (5.2 m) LW 13:58 (0.7 m) HW 19:36 (5.4 m)✅ Yes
Sun 13 SeptLW 02:19 (0.6 m) HW 08:02 (5.2 m) LW 14:34 (0.7 m) HW 20:11 (5.3 m)✅ Yes
Mon 14 SeptLW 02:54 (0.8 m) HW 08:33 (5.1 m) LW 15:07 (0.9 m) HW 20:41 (5.2 m)✅ Yes
Tue 15 SeptLW 03:24 (1.0 m) HW 08:59 (5.0 m) LW 15:36 (1.2 m) HW 21:07 (5.0 m)✅ Yes
Wed 16 SeptLW 03:49 (1.3 m) HW 09:24 (4.9 m) LW 16:02 (1.5 m) HW 21:33 (4.8 m)
Thu 17 SeptLW 04:11 (1.7 m) HW 09:50 (4.7 m) LW 16:25 (1.8 m) HW 22:02 (4.6 m)

Open the St. Germans monthly calendar

Planning a scrub at St. Germans

  • 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.