fog is common during may, which may affect morning drives throughout the city, though it generally disperses to expose bright sunshine by mid-day.

clouds and rain are also common, especially in the chilly mornings, for this reason it is best to always dress in layers while touring rio de janeiro during this month, as the temperatures will range quite significantly throughout even just a single day.

the month of may in rio de janeiro has its own unique beauty - foggy mornings are followed by mild sun, and the days end with gorgeous sunsets - the somewhat breezier, cooler days may be a welcome reprieve from the burning hot months of summer, especially for visitors who are unused to the extreme heat that rio de janeiro brings.