Llanddwyn Island tide times and boat scrubbing days
Llanddwyn Island is a UK Hydrographic Office tide station in Wales at 53.133°, -4.417°. 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.
No high water falls between 06:30 and 09:00 in the next 7 days. The monthly calendar shows the next suitable scrubbing mornings.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 04:36 (0.5 m) HW 10:06 (4.9 m) LW 16:44 (0.7 m) HW 22:17 (5.2 m) | — |
| Sat 12 Sept | LW 05:12 (0.5 m) HW 10:40 (4.9 m) LW 17:20 (0.7 m) HW 22:53 (5.2 m) | — |
| Sun 13 Sept | LW 05:48 (0.5 m) HW 11:14 (4.9 m) LW 17:56 (0.7 m) HW 23:28 (5.1 m) | — |
| Mon 14 Sept | LW 06:24 (0.7 m) HW 11:48 (4.8 m) LW 18:33 (0.9 m) | — |
| Tue 15 Sept | HW 00:04 (4.9 m) LW 07:01 (1.0 m) HW 12:23 (4.6 m) LW 19:11 (1.2 m) | — |
| Wed 16 Sept | HW 00:40 (4.6 m) LW 07:37 (1.3 m) HW 12:59 (4.5 m) LW 19:51 (1.5 m) | — |
| Thu 17 Sept | HW 01:20 (4.4 m) LW 08:15 (1.6 m) HW 13:40 (4.3 m) LW 20:36 (1.8 m) | — |
Open the Llanddwyn Island monthly calendar
Planning a scrub at Llanddwyn 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.