South Rock tide times and boat scrubbing days
South Rock is a UK Hydrographic Office tide station in Northern Ireland at 54.400°, -5.417°. 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.
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: Thu 5 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | LW 02:12 (0.8 m) HW 08:32 (3.9 m) LW 14:36 (1.2 m) HW 20:38 (4.4 m) | ✅ Yes |
| Fri 6 Nov | LW 03:06 (0.7 m) HW 09:21 (4.1 m) LW 15:28 (1.0 m) HW 21:29 (4.6 m) | — |
| Sat 7 Nov | LW 03:49 (0.7 m) HW 10:04 (4.2 m) LW 16:11 (1.0 m) HW 22:14 (4.6 m) | — |
| Sun 8 Nov | LW 04:25 (0.8 m) HW 10:44 (4.3 m) LW 16:48 (0.9 m) HW 22:56 (4.6 m) | — |
| Mon 9 Nov | LW 04:57 (0.8 m) HW 11:21 (4.4 m) LW 17:23 (0.9 m) HW 23:34 (4.5 m) | — |
| Tue 10 Nov | LW 05:29 (0.9 m) HW 11:54 (4.4 m) LW 17:57 (0.9 m) | — |
| Wed 11 Nov | HW 00:09 (4.4 m) LW 06:01 (1.0 m) HW 12:26 (4.5 m) LW 18:31 (0.9 m) | — |
Open the South Rock monthly calendar
Planning a scrub at South Rock
- 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.