Live barometric pressure for your location or any city worldwide — hPa and inHg, a 24-hour trend chart, a 24-hour forecast, and a live pressure map, alongside humidity, wind speed and temperature.
This page shows real-time atmospheric pressure for your location and any city worldwide, along with the data most people check alongside it — humidity, wind speed and temperature — plus a 24-hour history chart, a 24-hour forecast, and a live regional pressure map so you can see systems moving toward you rather than just a single number.
Atmospheric pressure, also called barometric pressure, is the weight of the column of air above a given point, measured in hectopascals (hPa) — numerically identical to millibars — or inches of mercury (inHg) in the US and aviation. It is one of the three core readings, alongside temperature and humidity, that describe the state of the atmosphere at any moment.
Falling pressure typically signals an approaching low-pressure system — cloud, rain and stronger winds. Rising pressure usually means a high-pressure system is moving in, bringing clearer skies and calmer conditions. The rate of change often matters more than the absolute value: a rapid fall is a much stronger signal than a slow one, even to the same eventual reading.
The chart above plots the last 24 hours so you can see whether pressure has been climbing, falling, or holding steady, rather than relying on a single instantaneous reading. The forecast strip extends that picture forward, using the same hourly model data, so you can see whether a system is expected to deepen or clear over the day ahead.
Hectopascals (hPa) are the standard unit used by meteorologists worldwide and are numerically identical to millibars (mb) — 1013.25 hPa equals 1013.25 mb. Inches of mercury (inHg) is the traditional US and aviation unit, with standard sea-level pressure equal to 29.92 inHg. This page displays both simultaneously.
Check current pressure in cities such as London, New York, Tokyo, Paris, Dubai, and Singapore, or search any location above.
For the full instrument experience — a dial display, a draggable benchmark marker, and deeper explainer content — visit the live barometer. For the full multi-day outlook, see the forecast page, or explore wind, humidity and rainfall alongside pressure using the other tools on this site.