Relative Pressure (definition)

Relative pressure is the atmospheric pressure corrected to sea-level conditions.

To compare pressure conditions from one location to another, meteorologists correct the measured pressure (referred to as absolute pressure) to sea-level conditions. Because the air pressure decreases as you rise in altitude, the sea-level corrected pressure (the pressure your location would be at if located at sea-level) is higher than your measured pressure if you live above sea-level and lower than your measured pressure if you live below sea-level.

See all weather stations that measure relative pressure or return to the Weather Station Glossary of Terms