Seasons and sky
Mixed Tide
Direct answer
Mixed Tide: A Mixed Tide is a tidal pattern with two highs and two lows of notably unequal height during a lunar day.
A Mixed Tide has unequal successive high and low waters.
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At a glance
- Found in
- Seasons & Earth Almanac
- Related
- Diurnal Tide, Amphidromic Point, Astronomical Season, Equinox
A Mixed Tide has unequal successive high and low waters.
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The story behind Mixed Tide
Constituent analysis revealed how daily and twice-daily responses superpose to create unequal pairs.
Why Mixed Tide matters
The inequality changes available depth, shoreline exposure, and current timing from one cycle to the next.
How to read Mixed Tide
Mixed Tide speaks to station-specific coastal planning where semidiurnal and diurnal constituents combine strongly.
Mixed Tide in practice: an example
A Pacific coast station may show a higher high, lower high, lower low, and higher low in one lunar day.
Where readings of Mixed Tide go wrong
A common error is to average the two highs when a vessel or shoreline activity depends on the specific predicted event.
Sources and editorial method
Research references used for this entry include:
- NOAA Tides and Currents Glossary - Operational definitions for tides, tidal currents, ranges, datums, bores, and amphidromic systems.
- Source
- The Great Almanac Dictionary
- Category
- Seasons & Earth Almanac
- Last updated
- 2026-09-26
Read each predicted high and low
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Common questions
What is a Mixed Tide?
A Mixed Tide is a tidal pattern with two highs and two lows of notably unequal height during a lunar day.
What do people get wrong about a Mixed Tide?
A common error is to average the two highs when a vessel or shoreline activity depends on the specific predicted event.
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