Weather · Rio de Janeiro, Brazil
Rio de Janeiro Weather in September
September in Rio de Janeiro averages 26°C by day and 19°C at night, with about 60mm of rain. That makes it a reasonable time to visit.
Avg high
26°C
79°F
Avg low
19°C
66°F
Rainfall
60mm
#9 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Rio de Janeiro builds it around the season for you.