March weather forecast in Treinta y Tres

March in Treinta y Tres is the sunniest month of the year. In March, the weather in Treinta y Tres is typically warm. Average daily high temperature in March is about 25 degrees above zero. On average, Treinta y Tres has 20 sunny, 6 partly cloudy, and 5 rainy days in March. The rains are usually heavy.