For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Cargreen tide times and boat scrubbing days

Cargreen is a UK Hydrographic Office tide station in England at 50.450°, -4.200°. 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.

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

Next 7 days of tidal events at Cargreen (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptLW 01:00 (0.6 m) HW 06:55 (5.4 m) LW 13:18 (0.6 m) HW 19:05 (5.7 m)✅ Yes
Sat 12 SeptLW 01:41 (0.4 m) HW 07:35 (5.5 m) LW 13:58 (0.5 m) HW 19:45 (5.7 m)✅ Yes
Sun 13 SeptLW 02:19 (0.4 m) HW 08:10 (5.5 m) LW 14:34 (0.5 m) HW 20:19 (5.7 m)✅ Yes
Mon 14 SeptLW 02:54 (0.6 m) HW 08:40 (5.4 m) LW 15:07 (0.7 m) HW 20:48 (5.5 m)✅ Yes
Tue 15 SeptLW 03:24 (0.8 m) HW 09:05 (5.3 m) LW 15:36 (1.0 m) HW 21:13 (5.3 m)
Wed 16 SeptLW 03:49 (1.2 m) HW 09:29 (5.1 m) LW 16:02 (1.3 m) HW 21:38 (5.0 m)
Thu 17 SeptLW 04:11 (1.5 m) HW 09:55 (4.9 m) LW 16:25 (1.7 m) HW 22:06 (4.7 m)

Open the Cargreen monthly calendar

Planning a scrub at Cargreen

  • 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.