27 capitals, each with its own story: the capital and the regions of its state (coast, mountains, inland), with the INMET stations that support it. Hover a point on the map to see the capital enlarged; click to read the story.
How to cite: Biondo, Leandro M. (2026). Brazil’s capitals, read with one ruler. UmaTerra. https://umaterra.com.br/en/stories/capitals/
The stories are exploratory: generated with automatic measurements and processing, they form an interpretation of the data available in the UmaTerra platforms and have not been validated outside UmaTerra or peer reviewed.
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Comparing the capitals
Hover a bar or a point to highlight the capital’s card.
Maximum temperature trend (°C per year, only trends with p < 0.05)Urban area (1985–2025, percentage points) against warming
By region
North
Manaus: annual rain rises in the metro area (p = 0.04). Belém: minimum rises strongly in the metro area (p < 0.01). Rio Branco: maximum and minimum rise in the metro area (p = 0.02 and 0.01). Macapá: maximum rises and rain falls (p = 0.03). Palmas and Porto Velho also warm.
Salvador: maximum rises inland (p = 0.01) and rain falls (p = 0.04). São Luís: maximum falls on the coast (p = 0.001). Recife: maximum rises in the metro area (p = 0.002). João Pessoa and Aracaju: maximum rises (p = 0.02 and 0.03). Maceió: rain falls strongly (p = 0.001 to 0.003).
Goiânia: maximum rises in all three regions, most on the plateau (p = 0.002). Cuiabá: maximum rises and rain falls in the south (p = 0.02). Campo Grande: maximum rises inland (p = 0.006). Brasília: the high plateau warms most strongly.
Manaus · AMManaus’s annual rain rises 28 mm a year in the metro, while the minimum temperature on the Rio Negro also rises.7 stations · Read the story →
Belém · PABelém swapped 31 points of forest for urban area in 40 years, and the metro minimum rises strongly (p < 0.01).7 stations · Read the story →
Palmas · TOPalmas’s metro warms 0.05 °C a year, with 17 more points of urban area and almost half of the box in protected areas.6 stations · Read the story →
Porto Velho · ROOn Acre and Madeira, the minimum rises strongly (p < 0.001), and Porto Velho’s metro lost 26 points of forest in four decades.6 stations · Read the story →
Rio Branco · ACRio Branco’s metro has maximum and minimum rising together (p = 0.02 and 0.01), and forest around it fell 41 points.5 stations · Read the story →
Macapá · AP + PAA mixed card: in Macapá maximum temperature rises and rain falls 73 mm a year, while the Pará Lower Amazon shows no clear trend.3 stations · Read the story →
Boa Vista · RR + AMA mixed card: in Roraima there is no significant trend; on the Rio Negro, in Amazonas, the minimum temperature rises (p = 0.04).3 stations · Read the story →
