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.
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.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 03:09 (7.9 m) LW 09:18 (2.3 m) HW 15:30 (8.4 m) LW 21:53 (1.9 m) | — |
| Fri 6 Nov | HW 04:02 (8.5 m) LW 10:06 (1.8 m) HW 16:19 (8.8 m) LW 22:36 (1.5 m) | — |
| Sat 7 Nov | HW 04:45 (8.9 m) LW 10:47 (1.5 m) HW 17:02 (9.1 m) LW 23:13 (1.3 m) | — |
| Sun 8 Nov | HW 05:24 (9.1 m) LW 11:24 (1.3 m) HW 17:40 (9.2 m) LW 23:48 (1.3 m) | — |
| Mon 9 Nov | HW 06:00 (9.2 m) LW 11:59 (1.3 m) HW 18:15 (9.2 m) | — |
| Tue 10 Nov | LW 00:20 (1.3 m) HW 06:34 (9.2 m) LW 12:33 (1.4 m) HW 18:50 (9.1 m) | ✅ Yes |
| Wed 11 Nov | LW 00:52 (1.4 m) HW 07:07 (9.1 m) LW 13:06 (1.5 m) HW 19:23 (8.9 m) | ✅ Yes |
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.