February in Curitiba is the warmest month of the year. In February, the weather in Curitiba is typically warm. Average daily high temperature in February is about 26 degrees above zero. On average, Curitiba has 21 rainy, 3 sunny, 3 partly cloudy, and 2 cloudy days in February. The rains are usually heavy. February as well as January, March, and December is considered the most uncomfortable time to visit Curitiba.