Boscastle tide times and boat scrubbing days
Boscastle is a UK Hydrographic Office tide station in England at 50.683°, -4.700°. 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.
4 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, Mon 14 Sept.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | HW 06:52 (7.4 m) LW 12:13 (0.7 m) HW 19:11 (7.7 m) | ✅ Yes |
| Sat 12 Sept | LW 00:38 (0.6 m) HW 07:34 (7.5 m) LW 12:49 (0.6 m) HW 19:51 (7.7 m) | ✅ Yes |
| Sun 13 Sept | LW 01:13 (0.6 m) HW 08:08 (7.4 m) LW 13:24 (0.7 m) HW 20:23 (7.5 m) | ✅ Yes |
| Mon 14 Sept | LW 01:46 (0.8 m) HW 08:38 (7.3 m) LW 13:57 (1.0 m) HW 20:52 (7.3 m) | ✅ Yes |
| Tue 15 Sept | LW 02:17 (1.2 m) HW 09:06 (7.0 m) LW 14:29 (1.4 m) HW 21:20 (6.9 m) | — |
| Wed 16 Sept | LW 02:47 (1.6 m) HW 09:34 (6.6 m) LW 14:59 (1.8 m) HW 21:48 (6.4 m) | — |
| Thu 17 Sept | LW 03:14 (2.1 m) HW 10:02 (6.2 m) LW 15:31 (2.3 m) HW 22:18 (5.9 m) | — |
Open the Boscastle monthly calendar
Planning a scrub at Boscastle
- 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.