Porthgain tide times and boat scrubbing days
Porthgain is a UK Hydrographic Office tide station in Wales at 51.950°, -5.183°. 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: Mon 9 Nov, Tue 10 Nov, Wed 11 Nov.
| Day | Tidal events | Scrubbing morning? |
|---|---|---|
| Thu 5 Nov | HW 03:51 (3.8 m) LW 10:12 (1.5 m) HW 16:13 (4.1 m) LW 22:44 (1.3 m) | — |
| Fri 6 Nov | HW 04:42 (4.0 m) LW 11:00 (1.3 m) HW 17:01 (4.2 m) LW 23:27 (1.1 m) | — |
| Sat 7 Nov | HW 05:25 (4.2 m) LW 11:41 (1.1 m) HW 17:43 (4.3 m) | — |
| Sun 8 Nov | LW 00:04 (1.0 m) HW 06:03 (4.3 m) LW 12:18 (1.0 m) HW 18:20 (4.4 m) | — |
| Mon 9 Nov | LW 00:38 (1.0 m) HW 06:39 (4.4 m) LW 12:52 (1.0 m) HW 18:55 (4.4 m) | ✅ Yes |
| Tue 10 Nov | LW 01:09 (1.0 m) HW 07:12 (4.4 m) LW 13:24 (1.1 m) HW 19:28 (4.3 m) | ✅ Yes |
| Wed 11 Nov | LW 01:40 (1.1 m) HW 07:44 (4.4 m) LW 13:57 (1.2 m) HW 20:00 (4.2 m) | ✅ Yes |
Open the Porthgain monthly calendar
Planning a scrub at Porthgain
- 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.