For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Ardglass tide times and boat scrubbing days

Ardglass is a UK Hydrographic Office tide station in Northern Ireland at 54.267°, -5.600°. 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.

One morning in the next 7 days has 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.

Next 7 days of tidal events at Ardglass (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovLW 01:55 (1.2 m) HW 08:22 (4.7 m) LW 14:17 (1.6 m) HW 20:35 (5.0 m)✅ Yes
Fri 6 NovLW 02:47 (1.1 m) HW 09:11 (4.9 m) LW 15:06 (1.4 m) HW 21:23 (5.2 m)—
Sat 7 NovLW 03:31 (1.0 m) HW 09:53 (5.0 m) LW 15:49 (1.2 m) HW 22:06 (5.3 m)—
Sun 8 NovLW 04:11 (1.0 m) HW 10:30 (5.1 m) LW 16:28 (1.1 m) HW 22:45 (5.3 m)—
Mon 9 NovLW 04:47 (1.0 m) HW 11:05 (5.2 m) LW 17:05 (1.1 m) HW 23:21 (5.2 m)—
Tue 10 NovLW 05:22 (1.1 m) HW 11:38 (5.2 m) LW 17:41 (1.2 m) HW 23:57 (5.1 m)—
Wed 11 NovLW 05:56 (1.3 m) HW 12:11 (5.1 m) LW 18:17 (1.2 m)—

Open the Ardglass monthly calendar

Planning a scrub at Ardglass

  • 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.