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Has the climate in Aracaju changed?

Aracaju has cooled about 0.9°F between 1991 and 2024.

About 0.3°F per decade, measured from Aracaju's official daily weather records, 1991–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Aracaju's climate has warmed more slowly than most other cities in Brazil.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Average temperature
−0.7°F
1970s
81.0°F
Recent
80.3°F
A small downward drift

Aracaju's temperature, year by year

Average temperature for each year from 1991 to 2024.

78°80°82°84°1991: 80.3°F1992: 80.6°F1993: 81.1°F1994: 81.1°F1995: 81.6°F1996: 81.2°F1997: 81.2°F1998: 82.9°F1999: 79.0°F2000: 80.7°F2001: 80.0°F2008: 79.5°F2009: 79.8°F2010: 79.8°F2011: 80.2°F2012: 79.8°F2013: 79.7°F2014: 79.3°F2015: 79.9°F2016: 80.5°F2017: 79.1°F2018: 80.4°F2019: 80.9°F2020: 81.1°F2021: 79.7°F2022: 79.7°F2023: 80.1°F2024: 80.9°Flong-term trend19912000201020202024
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

Methodology & sources

Temperature — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Aracaju, about 2 km from the city centre.

How we build these numbers →