Seasons and sky
Tidal Range
Direct answer
Tidal Range is the vertical difference in water level between a high tide and the adjacent low tide.
Tidal Range is the height difference from high water to low water.
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At a glance
- Found in
- Seasons & Earth Almanac
- Related
- Alpenglow, Tidal Datum, Astronomical Season, Equinox
Tidal Range is the height difference from high water to low water.
A Sun-Earth orientation for seasonal, atmospheric, tidal, and terrestrial terms.
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The story behind Tidal Range
Tide gauges and harmonic analysis turned local high-low observations into standardized predictions and datum records.
Why Tidal Range matters
Tidal Range shapes shoreline exposure, navigation depth, currents, intertidal habitat, and flood risk.
Tidal Range in practice: an example
A spring tide often has a larger Tidal Range than a nearby neap tide at the same station.
Where readings of Tidal Range go wrong
A common error is to transfer a range prediction between harbors or treat it as total water level during storm surge.
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.
- NOAA Ocean Service: What Are Spring and Neap Tides? - Official explanation of lunar-solar alignment and spring and neap tidal ranges.
- Source
- The Great Almanac Dictionary
- Category
- Seasons & Earth Almanac
- Last updated
- 2026-09-26
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Common questions
What is tidal range?
Tidal Range is the vertical difference in water level between a high tide and the adjacent low tide.
What do people get wrong about tidal range?
A common error is to transfer a range prediction between harbors or treat it as total water level during storm surge.
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