Climate Yearbook

Buenos Aires vs São Paulo weather comparison

Compare historical temperatures, precipitation, and daily records for Buenos Aires and São Paulo using Open-Meteo archive data.

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Load Buenos Aires and São Paulo together to inspect daily patterns across years.

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Data-driven verdict

São Paulo has the warmer daytime profile, with average highs 4.0 C apart from Buenos Aires.

Buenos Aires has the cooler nights by 1.5 C, while São Paulo is wetter by 208.5 mm per year.

The comparison is based on 1096 daily observations for Buenos Aires and 1096 daily observations for São Paulo.

Side-by-side climate table

MetricBuenos AiresSão Paulo
Daily observations10961096
Average daily high21.8 C25.8 C
Average daily low14.4 C15.9 C
Average annual precipitation1082.2 mm1290.7 mm
Warmest monthDecember 2025February 2025
Wettest monthMarch 2024January 2025

Daily weather records

RecordBuenos AiresSão Paulo
Hottest day38.7 C on December 31, 202536.5 C on November 13, 2023
Coldest night-1.4 C on July 6, 20241.4 C on August 27, 2024
Wettest day89.5 mm on March 3, 202551.8 mm on January 29, 2025

Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.