Planning for the weather is an important factor for making your trip to Ouro Verde a success, especially when you're splurging. The hottest months are usually September and October, with an average temperature of 26°C, while the coldest months are July and June, with an average of 21°C. The rainiest months in Ouro Verde are January, December, February and March, with each month seeing an average of 230 mm of rainfall.