The climate of Buzios.
39mm precipitation refers in August is the month with the least rain.
During the year the average temperatures vary only 4.8 ° C.
In the cooler months we overnight at temperature of about 16 ° C. During the day a pleasant temperature between 27 and 32 ° C and little chance of rain provide excellent days of very blue sky beach.
Temperatures in June 2015.
Temperatures in July 2015.
Temperatures in August 2015.
More details in accuweather.com