Weather is probably a major factor when you plan your trip to Nilo Peçanha, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and January, with an average temperature of 26°C, while the coldest months are July and August, with an average of 21°C. The rainiest months in Nilo Peçanha are January, December, November and March, with each month seeing an average of 210 mm of rainfall.