SWANSEA tide times and boat scrubbing days
SWANSEA is a UK Hydrographic Office tide station in Wales at 51.617°, -3.917°. 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 01:07 (0.7 m) HW 07:17 (9.5 m) LW 13:20 (0.7 m) HW 19:33 (9.9 m) | ✅ Yes |
| Sat 12 Sept | LW 01:45 (0.5 m) HW 07:55 (9.7 m) LW 13:56 (0.6 m) HW 20:10 (9.9 m) | ✅ Yes |
| Sun 13 Sept | LW 02:20 (0.6 m) HW 08:31 (9.6 m) LW 14:30 (0.7 m) HW 20:44 (9.8 m) | ✅ Yes |
| Mon 14 Sept | LW 02:51 (0.8 m) HW 09:04 (9.5 m) LW 15:01 (0.9 m) HW 21:16 (9.5 m) | — |
| Tue 15 Sept | LW 03:19 (1.2 m) HW 09:34 (9.1 m) LW 15:29 (1.3 m) HW 21:46 (9.0 m) | — |
| Wed 16 Sept | LW 03:44 (1.6 m) HW 10:03 (8.7 m) LW 15:55 (1.8 m) HW 22:15 (8.5 m) | — |
| Thu 17 Sept | LW 04:06 (2.1 m) HW 10:31 (8.2 m) LW 16:20 (2.3 m) HW 22:44 (7.8 m) | — |
Open the SWANSEA monthly calendar
Planning a scrub at SWANSEA
- 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.