Porth Dinllaen tide times and boat scrubbing days
Porth Dinllaen is a UK Hydrographic Office tide station in Wales at 52.950°, -4.567°. 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.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Fri 11 Sept | LW 04:31 (0.3 m) HW 10:00 (4.6 m) LW 16:39 (0.5 m) HW 22:10 (5.0 m) | — |
| Sat 12 Sept | LW 05:07 (0.2 m) HW 10:34 (4.6 m) LW 17:15 (0.5 m) HW 22:47 (4.9 m) | — |
| Sun 13 Sept | LW 05:43 (0.3 m) HW 11:09 (4.6 m) LW 17:51 (0.5 m) HW 23:22 (4.8 m) | — |
| Mon 14 Sept | LW 06:19 (0.5 m) HW 11:43 (4.5 m) LW 18:28 (0.7 m) HW 23:58 (4.6 m) | — |
| Tue 15 Sept | LW 06:56 (0.8 m) HW 12:17 (4.3 m) LW 19:06 (1.0 m) | — |
| Wed 16 Sept | HW 00:35 (4.3 m) LW 07:32 (1.1 m) HW 12:53 (4.1 m) LW 19:46 (1.3 m) | — |
| Thu 17 Sept | HW 01:13 (3.9 m) LW 08:10 (1.5 m) HW 13:33 (3.8 m) LW 20:31 (1.7 m) | — |
Open the Porth Dinllaen monthly calendar
Planning a scrub at Porth Dinllaen
- 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.