For UK boat owners

Scrubbing off Calendar

Monthly view • Harmonic predictions • Boat scrubbing day finder

Osea Island tide times and boat scrubbing days

Osea Island is a UK Hydrographic Office tide station in England at 51.717°, 0.767°. 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 Osea Island (UK local time, heights in metres above Chart Datum)
DayTidal eventsScrubbing morning?
Fri 11 SeptHW 01:16 (5.5 m) LW 07:12 (0.9 m) HW 13:38 (5.5 m) LW 19:45 (0.2 m)
Sat 12 SeptHW 01:57 (5.5 m) LW 07:48 (0.8 m) HW 14:16 (5.6 m) LW 20:18 (0.2 m)
Sun 13 SeptHW 02:34 (5.5 m) LW 08:21 (0.8 m) HW 14:50 (5.6 m) LW 20:48 (0.3 m)
Mon 14 SeptHW 03:10 (5.4 m) LW 08:53 (0.8 m) HW 15:24 (5.6 m) LW 21:15 (0.4 m)
Tue 15 SeptHW 03:45 (5.3 m) LW 09:23 (0.8 m) HW 15:55 (5.4 m) LW 21:39 (0.6 m)
Wed 16 SeptHW 04:17 (5.1 m) LW 09:51 (0.9 m) HW 16:28 (5.2 m) LW 22:02 (0.8 m)
Thu 17 SeptHW 04:48 (4.8 m) LW 10:18 (1.0 m) HW 17:03 (5.0 m) LW 22:29 (1.1 m)

Open the Osea Island monthly calendar

Planning a scrub at Osea Island

  • 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.