Planning for the weather is a good way to make your trip to Teresópolis relaxing and enjoyable, especially when you’re splurging. The hottest months are usually February and January, with an average temperature of 22°C, while the coldest months are July and August, with an average of 18°C. The rainiest months in Teresópolis are December, November, January and March, with each month seeing an average of 318 mm of rainfall.