Steep Holm tide times and boat scrubbing days
Steep Holm is a UK Hydrographic Office tide station in Wales at 51.333°, -3.100°. 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: Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 03:28 (9.7 m) LW 09:38 (2.3 m) HW 15:51 (10.3 m) LW 22:12 (1.9 m) | — |
| Fri 6 Nov | HW 04:22 (10.4 m) LW 10:32 (1.6 m) HW 16:43 (10.8 m) LW 23:03 (1.3 m) | — |
| Sat 7 Nov | HW 05:09 (10.9 m) LW 11:22 (1.1 m) HW 17:29 (11.2 m) LW 23:49 (1.0 m) | — |
| Sun 8 Nov | HW 05:53 (11.3 m) LW 12:08 (0.9 m) HW 18:11 (11.4 m) | — |
| Mon 9 Nov | LW 00:34 (0.9 m) HW 06:31 (11.4 m) LW 12:52 (0.9 m) HW 18:50 (11.3 m) | ✅ Yes |
| Tue 10 Nov | LW 01:15 (1.0 m) HW 07:08 (11.3 m) LW 13:32 (1.1 m) HW 19:25 (11.1 m) | ✅ Yes |
| Wed 11 Nov | LW 01:50 (1.3 m) HW 07:41 (11.1 m) LW 14:05 (1.4 m) HW 19:58 (10.8 m) | ✅ Yes |
Open the Steep Holm monthly calendar
Planning a scrub at Steep Holm
- 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.