Portishead tide times and boat scrubbing days
Portishead is a UK Hydrographic Office tide station in England at 51.500°, -2.750°. 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: Fri 11 Sept, Sat 12 Sept.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | HW 08:10 (13.4 m) HW 20:27 (13.9 m) | ✅ Yes |
| Sat 12 Sept | HW 08:51 (13.7 m) HW 21:07 (14.0 m) | ✅ Yes |
| Sun 13 Sept | HW 09:29 (13.6 m) HW 21:43 (13.7 m) | — |
| Mon 14 Sept | HW 10:02 (13.2 m) HW 22:14 (13.1 m) | — |
| Tue 15 Sept | HW 10:30 (12.6 m) HW 22:41 (12.4 m) | — |
| Wed 16 Sept | HW 10:54 (12.0 m) HW 23:04 (11.7 m) | — |
| Thu 17 Sept | HW 11:17 (11.3 m) HW 23:29 (10.9 m) | — |
Open the Portishead monthly calendar
Planning a scrub at Portishead
- 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.