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Barometric Pressure in Brazil

We monitor barometric pressure across 12 cities in Brazil, giving you up-to-date insights into local weather patterns.

Flag of Brazil

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

Brazil Barometric Pressure Map

Depending on how many places we monitor in Brazil, 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

Several weather systems change air pressure in Brazil. The South Atlantic Subtropical High brings dry, stable air along the coast. The Amazon Low occurs from intense heating over the rainforest, drawing moist air and causing rain. Cold fronts from the south often bring sudden drops in pressure and storms.

Geography

Brazil's geography plays a big role in pressure. The Amazon Basin in the north is flat and hot, so air pressure drops there as warm air rises. The highlands in the southeast and central regions experience more stable, higher pressure. Mountains block or redirect wind and affect how weather systems move.

Seasonal Cycles

During the wet season in summer (December to March), pressure in the north and west of Brazil is usually low because the land heats up, causing rain and thunderstorms. In the dry winter (June to August), high pressure builds, blocking rain and bringing drier, cooler air, especially to the south and central regions.

Climate Change

Climate change could change these pressure patterns. Rising temperatures may lower pressure in the Amazon, bringing heavier rain and longer wet seasons. High-pressure systems might get stronger or shift position, which can cause more frequent droughts in some areas and extra rain in others.

Places in Brazil

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

Other

Amazonas

Bahia

Minas Gerais

Pará

Rio Grande do Norte

Rio de Janeiro

São Paulo

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