Planning for the weather is a good way to make your trip to Barra Grande relaxing and enjoyable, especially when you’re splurging. The hottest months are usually September and October, with an average temperature of 28°C, while the coldest months are July and June, with an average of 27°C. The rainiest months in Barra Grande are April, March, February and May, with each month seeing an average of 250 mm of rainfall.