Buenos Aires edges it in October. Buenos Aires averages 13–23°C with moderate-high crowds; Medellín 17–27°C with low-moderate crowds.
By Daan · Last reviewed October 2026
Buenos Aires and Medellín
The verdict for October
Jacarandas and warm evenings
+Lilac jacarandas and comfortable weather.
–Busier and costlier than winter.
October is among the best: mild weather and jacarandas in bloom across the city.
Second rainy season
+Lower prices and green hills.
–Frequent heavy rain.
October is one of the wetter months, quieter and good value.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month