Coleraine tide times and boat scrubbing days
Coleraine is a UK Hydrographic Office tide station in Northern Ireland at 55.133°, -6.667°. 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.
3 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.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 01:51 (0.2 m) HW 07:36 (2.1 m) LW 13:40 (0.1 m) HW 19:46 (2.3 m) | ✅ Yes |
| Sat 12 Sept | LW 02:35 (0.2 m) HW 08:08 (2.2 m) LW 14:20 (0.1 m) HW 20:24 (2.3 m) | ✅ Yes |
| Sun 13 Sept | LW 03:17 (0.3 m) HW 08:45 (2.2 m) LW 15:00 (0.2 m) HW 21:03 (2.3 m) | ✅ Yes |
| Mon 14 Sept | LW 03:54 (0.4 m) HW 09:23 (2.1 m) LW 15:37 (0.3 m) HW 21:45 (2.2 m) | — |
| Tue 15 Sept | LW 04:28 (0.5 m) HW 10:01 (2.1 m) LW 16:16 (0.4 m) HW 22:26 (2.0 m) | — |
| Wed 16 Sept | LW 05:06 (0.7 m) HW 10:44 (2.0 m) LW 17:00 (0.6 m) HW 23:09 (1.9 m) | — |
| Thu 17 Sept | LW 05:50 (0.8 m) HW 11:34 (1.9 m) LW 17:54 (0.9 m) | — |
| Fri 18 Sept | HW 00:06 (1.7 m) | — |
Open the Coleraine monthly calendar
Planning a scrub at Coleraine
- 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.