Rockall tide times and boat scrubbing days
Rockall is a UK Hydrographic Office tide station in Scotland at 57.600°, -13.683°. 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: Wed 11 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 03:10 (2.5 m) LW 08:58 (1.0 m) HW 15:21 (2.8 m) LW 21:39 (0.8 m) | — |
| Fri 6 Nov | HW 03:53 (2.7 m) LW 09:46 (0.9 m) HW 16:03 (2.9 m) LW 22:20 (0.7 m) | — |
| Sat 7 Nov | HW 04:29 (2.8 m) LW 10:28 (0.8 m) HW 16:40 (2.9 m) LW 22:56 (0.7 m) | — |
| Sun 8 Nov | HW 05:02 (2.9 m) LW 11:07 (0.8 m) HW 17:14 (2.9 m) LW 23:31 (0.7 m) | — |
| Mon 9 Nov | HW 05:33 (3.0 m) LW 11:44 (0.7 m) HW 17:47 (2.9 m) | — |
| Tue 10 Nov | LW 00:04 (0.7 m) HW 06:04 (3.0 m) LW 12:19 (0.7 m) HW 18:19 (2.8 m) | — |
| Wed 11 Nov | LW 00:36 (0.7 m) HW 06:34 (3.0 m) LW 12:53 (0.8 m) HW 18:52 (2.7 m) | ✅ Yes |
Open the Rockall monthly calendar
Planning a scrub at Rockall
- 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.