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Barometric Pressure in Peru

We monitor barometric pressure across 13 cities in Peru, giving you up-to-date insights into local weather patterns.

Flag of Peru

Whether you're tracking pressure changes for health reasons, planning outdoor activities, or planning a fishing trip, our data is tailored to conditions in Peru, with detailed readings city by city.

Peru Barometric Pressure Map

Depending on how many places we monitor in Peru, the map displays a sampled set of barometric pressure data to give a clear overview of current conditions.

Here you can see which cities experienced the biggest and smallest changes in barometric pressure today. This helps highlight areas with the most stable or unstable weather patterns.

Most volatile

Least volatile

How is it calculated?

Our volatility “beta” number is generated by an algorithm that analyzes hourly barometric pressure changes. It looks at how much the pressure fluctuates from hour to hour. A beta of 0 means no change, perfectly stable pressure. The higher the decimal value, the more variation there has been throughout the day or over a longer period.

Weather Systems

Peru’s air pressure changes depending on large weather systems. The Pacific Ocean brings the Humboldt Current, which helps create high-pressure areas along the coast. In the mountains, low-pressure systems can form when air rises over the Andes.

Geography

Geography matters a lot. The Andes Mountains block moist air from the east, causing lower pressure on the mountain slopes and higher pressure on the dry coast. Valleys and other landforms can trap or channel air, causing pressure to rise or fall in certain spots.

Seasonal Cycles

During the year, air pressure shifts with the seasons. In summer, strong sunlight warms the land and lowers the pressure. In winter, cooler temperatures over land and warm ocean water create higher pressure, especially along the coast. The pressure changes shift with wet and dry seasons.

Climate Change

Climate change is affecting Peru’s air pressure trends. Warming temperatures disturb normal wind and rain patterns, changing pressure systems. There are more unusual storms and shifting pressure zones, which can bring heavier rainfall or longer dry spells in different parts of the country.

Places in Peru

You can find your city in the lists below, by using our search, or on the Peru Pressure Map above. We're tracking barometric pressure across multiple locations in Peru to keep you informed.

Each city includes a pressure status showing whether it's currently high, normal or low, along with two volatility values: one for today and one for the full period, usually 14 days. These help you see how much the pressure is changing over time.

Arequipa

Cusco

Junin

Lima

Lima Province

Lima region

Piura

Puno

Región de San Martín

San Martín Department

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