Walton predicted HW & LW tides, Jan 2025–Sep 2029 · all times UTC
ℹ️ How to use
Date range
Set From / To dates to narrow the period. Default is today + 6 months. Press Apply or hit Enter after changing date or height fields.
H / L
Show all tides, High Water only, Low Water only, or any row that has an H/L label.
Days of week to exclude
All days are shown by default. Click a day button to dim it and remove those tides from the results — useful for planning around working days. Colours: teal = weekday included, purple = weekend included, grey = excluded.
Start / End Hour
Filter to tides that fall within a time window (0–23, UTC). Leave blank for any time. Useful for planning accessible launches, e.g. 06–18 only.
HW ≥ (m) / LW ≤ (m)
Height thresholds applied to HW and LW rows separately. E.g. HW ≥ 4.0 shows only big springs; LW ≤ 0.5 shows very low tides.
Sorting
Click any column header to sort ascending; click again to reverse.
Download CSV
Exports the current filtered & sorted set as a spreadsheet-ready CSV file.
Print / PDF
Renders all filtered rows (ignoring pagination) and opens the browser print dialog. Choose "Save as PDF" to export.
% Spring
Percentage of mean spring range — 100% = average spring, >100% = above average spring, ~40% = average neap.