Black Tar tide times and boat scrubbing days
Black Tar is a UK Hydrographic Office tide station in Wales at 51.750°, -4.900°. 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: Fri 11 Sept, Sat 12 Sept, Sun 13 Sept.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 01:14 (0.4 m) HW 07:25 (7.2 m) LW 13:26 (0.4 m) HW 19:42 (7.5 m) | ✅ Yes |
| Sat 12 Sept | LW 01:52 (0.3 m) HW 08:04 (7.3 m) LW 14:03 (0.3 m) HW 20:20 (7.5 m) | ✅ Yes |
| Sun 13 Sept | LW 02:27 (0.3 m) HW 08:40 (7.2 m) LW 14:38 (0.4 m) HW 20:56 (7.4 m) | ✅ Yes |
| Mon 14 Sept | LW 02:59 (0.5 m) HW 09:13 (7.1 m) LW 15:10 (0.7 m) HW 21:28 (7.1 m) | — |
| Tue 15 Sept | LW 03:28 (0.9 m) HW 09:44 (6.8 m) LW 15:40 (1.1 m) HW 21:58 (6.6 m) | — |
| Wed 16 Sept | LW 03:57 (1.4 m) HW 10:14 (6.4 m) LW 16:09 (1.6 m) HW 22:28 (6.2 m) | — |
| Thu 17 Sept | LW 04:24 (1.9 m) HW 10:44 (5.9 m) LW 16:39 (2.1 m) HW 23:00 (5.6 m) | — |
Open the Black Tar monthly calendar
Planning a scrub at Black Tar
- 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.