Bardsey Island tide times and boat scrubbing days
Bardsey Island is a UK Hydrographic Office tide station in Wales at 52.767°, -4.783°. 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: Fri 11 Sept.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 03:20 (0.5 m) HW 08:50 (4.4 m) LW 15:28 (0.6 m) HW 21:01 (4.8 m) | ✅ Yes |
| Sat 12 Sept | LW 03:57 (0.4 m) HW 09:28 (4.4 m) LW 16:05 (0.6 m) HW 21:41 (4.7 m) | — |
| Sun 13 Sept | LW 04:33 (0.5 m) HW 10:06 (4.4 m) LW 16:41 (0.6 m) HW 22:21 (4.6 m) | — |
| Mon 14 Sept | LW 05:08 (0.6 m) HW 10:42 (4.3 m) LW 17:17 (0.8 m) HW 22:57 (4.4 m) | — |
| Tue 15 Sept | LW 05:45 (0.8 m) HW 11:14 (4.1 m) LW 17:55 (0.9 m) HW 23:30 (4.1 m) | — |
| Wed 16 Sept | LW 06:20 (1.0 m) HW 11:47 (3.9 m) LW 18:34 (1.2 m) | — |
| Thu 17 Sept | HW 00:05 (3.7 m) LW 06:58 (1.3 m) HW 12:22 (3.6 m) LW 19:18 (1.4 m) | — |
| Fri 18 Sept | HW 00:43 (3.4 m) | — |
Open the Bardsey Island monthly calendar
Planning a scrub at Bardsey Island
- 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.