Londonderry tide times and boat scrubbing days
Londonderry is a UK Hydrographic Office tide station in Northern Ireland at 55.000°, -7.317°. 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.
5 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: Sat 7 Nov, Sun 8 Nov, Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 05:33 (2.5 m) LW 11:09 (1.0 m) HW 17:33 (2.7 m) | — |
| Fri 6 Nov | LW 00:33 (0.7 m) HW 06:17 (2.6 m) LW 11:59 (0.9 m) HW 18:16 (2.8 m) | — |
| Sat 7 Nov | LW 01:05 (0.7 m) HW 06:56 (2.7 m) LW 12:42 (0.8 m) HW 18:53 (2.8 m) | ✅ Yes |
| Sun 8 Nov | LW 01:31 (0.7 m) HW 07:29 (2.8 m) LW 13:20 (0.8 m) HW 19:27 (2.8 m) | ✅ Yes |
| Mon 9 Nov | LW 01:57 (0.7 m) HW 07:59 (2.8 m) LW 13:54 (0.8 m) HW 19:57 (2.7 m) | ✅ Yes |
| Tue 10 Nov | LW 02:24 (0.7 m) HW 08:23 (2.8 m) LW 14:27 (0.8 m) HW 20:25 (2.7 m) | ✅ Yes |
| Wed 11 Nov | LW 02:53 (0.8 m) HW 08:47 (2.8 m) LW 15:00 (0.9 m) HW 20:53 (2.5 m) | ✅ Yes |
Open the Londonderry monthly calendar
Planning a scrub at Londonderry
- 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.