For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Orford Ness tide times and boat scrubbing days

Orford Ness is a UK Hydrographic Office tide station in England at 52.083°, 1.583°. 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.

3 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, Sat 7 Nov.

Next 7 days of tidal events at Orford Ness (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 01:20 (1.1 m) HW 07:07 (2.8 m) LW 13:54 (0.5 m) HW 20:42 (2.8 m)✅ Yes
Fri 6 NovLW 02:18 (1.1 m) HW 08:06 (2.8 m) LW 14:48 (0.5 m) HW 21:24 (2.8 m)✅ Yes
Sat 7 NovLW 03:10 (1.0 m) HW 08:57 (2.8 m) LW 15:35 (0.5 m) HW 21:59 (2.8 m)✅ Yes
Sun 8 NovLW 03:53 (0.9 m) HW 09:44 (2.8 m) LW 16:15 (0.6 m) HW 22:32 (2.8 m)—
Mon 9 NovLW 04:32 (0.8 m) HW 10:29 (2.8 m) LW 16:50 (0.6 m) HW 23:05 (2.8 m)—
Tue 10 NovLW 05:09 (0.7 m) HW 11:13 (2.8 m) LW 17:23 (0.7 m) HW 23:37 (2.8 m)—
Wed 11 NovLW 05:45 (0.7 m) HW 11:56 (2.8 m) LW 17:54 (0.7 m)—

Open the Orford Ness monthly calendar

Planning a scrub at Orford Ness

  • 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.