For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Portrush tide times and boat scrubbing days

Portrush is a UK Hydrographic Office tide station in Northern Ireland at 55.200°, -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.

2 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: Tue 10 Nov, Wed 11 Nov.

Next 7 days of tidal events at Portrush (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 03:59 (1.7 m) LW 09:22 (0.9 m) HW 16:26 (2.1 m) LW 22:51 (0.7 m)—
Fri 6 NovHW 04:33 (1.8 m) LW 10:06 (0.8 m) HW 16:56 (2.1 m) LW 23:16 (0.7 m)—
Sat 7 NovHW 05:07 (1.9 m) LW 10:46 (0.7 m) HW 17:27 (2.1 m) LW 23:43 (0.7 m)—
Sun 8 NovHW 05:40 (2.0 m) LW 11:24 (0.7 m) HW 17:58 (2.1 m)—
Mon 9 NovLW 00:11 (0.7 m) HW 06:14 (2.1 m) LW 12:01 (0.7 m) HW 18:31 (2.1 m)—
Tue 10 NovLW 00:40 (0.7 m) HW 06:47 (2.2 m) LW 12:38 (0.8 m) HW 19:02 (2.0 m)✅ Yes
Wed 11 NovLW 01:10 (0.7 m) HW 07:21 (2.1 m) LW 13:16 (0.8 m) HW 19:35 (1.9 m)✅ Yes

Open the Portrush monthly calendar

Planning a scrub at Portrush

  • 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.