For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Port Isaac tide times and boat scrubbing days

Port Isaac is a UK Hydrographic Office tide station in England at 50.600°, -4.833°. 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.

Next 7 days of tidal events at Port Isaac (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Thu 5 NovHW 01:59 (6.3 m) LW 08:18 (2.0 m) HW 14:22 (6.8 m) LW 20:52 (1.7 m)—
Fri 6 NovHW 02:52 (6.7 m) LW 09:08 (1.7 m) HW 15:11 (7.0 m) LW 21:37 (1.4 m)—
Sat 7 NovHW 03:36 (7.0 m) LW 09:51 (1.4 m) HW 15:54 (7.2 m) LW 22:15 (1.3 m)—
Sun 8 NovHW 04:15 (7.2 m) LW 10:30 (1.3 m) HW 16:32 (7.3 m) LW 22:51 (1.3 m)—
Mon 9 NovHW 04:51 (7.3 m) LW 11:05 (1.3 m) HW 17:08 (7.3 m) LW 23:23 (1.3 m)—
Tue 10 NovHW 05:25 (7.3 m) LW 11:39 (1.4 m) HW 17:42 (7.2 m) LW 23:55 (1.4 m)—
Wed 11 NovHW 05:58 (7.2 m) LW 12:12 (1.5 m) HW 18:14 (7.0 m)—

Open the Port Isaac monthly calendar

Planning a scrub at Port Isaac

  • 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.