About 0.1°F per decade, measured from Maceió's official daily weather records, 1973–2020. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
Is that a lot? Maceió's warming is broadly in line with other cities in Brazil — neither unusually fast nor unusually slow.
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.
Freezing nights
about the same
1970s
0 / yr
→
Recent
0 / yr
Winters about as cold as before
Average temperature
about the same
1970s
76.8°F
→
Recent
76.9°F
Year-round temperature has barely moved
Hot days above 90°F
9 more days
1970s
6 / yr
→
Recent
15 / yr
More days of serious heat
Rainy days
57 more days
1970s
81 / yr
→
Recent
138 / yr
Wetter on average
Maceió's temperature, year by year
Average temperature for each year from 1973 to 2020.
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.
In day-to-day terms, that long-term shift shows up as about 8 more days above 90°F compared with the 1970s.
Methodology & sources
Temperature — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Maceio, about 4 km from the city centre.