January in Artigas is the hottest month of the year. In January, the weather in Artigas is typically hot. Average daily high temperature in January is about 31 degrees above zero. On average, Artigas has 16 sunny, 9 partly cloudy, and 6 rainy days in January. The rains are usually heavy. January as well as February, June, and July is considered the most uncomfortable time to visit Artigas.