For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Red Bay tide times and boat scrubbing days

Red Bay is a UK Hydrographic Office tide station in Northern Ireland at 55.067°, -6.050°. 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: Thu 5 Nov, Fri 6 Nov.

Next 7 days of tidal events at Red Bay (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 01:46 (0.3 m) HW 08:05 (1.6 m) LW 14:09 (0.4 m) HW 20:11 (1.7 m)✅ Yes
Fri 6 NovLW 02:37 (0.3 m) HW 08:58 (1.6 m) LW 14:57 (0.4 m) HW 21:07 (1.7 m)✅ Yes
Sat 7 NovLW 03:17 (0.3 m) HW 09:45 (1.6 m) LW 15:37 (0.4 m) HW 21:56 (1.7 m)—
Sun 8 NovLW 03:51 (0.3 m) HW 10:28 (1.7 m) LW 16:12 (0.3 m) HW 22:41 (1.7 m)—
Mon 9 NovLW 04:20 (0.3 m) HW 11:09 (1.7 m) LW 16:45 (0.3 m) HW 23:23 (1.7 m)—
Tue 10 NovLW 04:50 (0.3 m) HW 11:45 (1.7 m) LW 17:16 (0.3 m)—
Wed 11 NovHW 00:01 (1.7 m) LW 05:20 (0.4 m) HW 12:19 (1.7 m) LW 17:49 (0.3 m)—

Open the Red Bay monthly calendar

Planning a scrub at Red Bay

  • 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.