Taking the local weather in Casimiro de Abreu into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. 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 17°C. The rainiest months in Casimiro de Abreu are December, November, January and March, with each month seeing an average of 356 mm of rainfall.