For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Flannan Isles tide times and boat scrubbing days

Flannan Isles is a UK Hydrographic Office tide station in Scotland at 58.283°, -7.583°. 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.

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: Tue 10 Nov, Wed 11 Nov.

Next 7 days of tidal events at Flannan Isles (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:44 (3.4 m) LW 09:38 (1.3 m) HW 15:55 (3.6 m) LW 22:20 (0.9 m)—
Fri 6 NovHW 04:28 (3.5 m) LW 10:28 (1.1 m) HW 16:38 (3.7 m) LW 23:03 (0.8 m)—
Sat 7 NovHW 05:05 (3.7 m) LW 11:11 (1.0 m) HW 17:16 (3.8 m) LW 23:40 (0.7 m)—
Sun 8 NovHW 05:39 (3.8 m) LW 11:51 (0.9 m) HW 17:51 (3.8 m)—
Mon 9 NovLW 00:16 (0.7 m) HW 06:11 (3.9 m) LW 12:29 (0.8 m) HW 18:25 (3.8 m)—
Tue 10 NovLW 00:49 (0.8 m) HW 06:42 (3.9 m) LW 13:05 (0.9 m) HW 18:57 (3.7 m)✅ Yes
Wed 11 NovLW 01:22 (0.8 m) HW 07:12 (3.8 m) LW 13:40 (0.9 m) HW 19:29 (3.6 m)✅ Yes

Open the Flannan Isles monthly calendar

Planning a scrub at Flannan Isles

  • 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.