March in Santa Teresa is the hottest month of the year. In March, the weather in Santa Teresa is typically hot. Average daily high temperature in March is about 28 degrees above zero. On average, Santa Teresa has 15 partly cloudy, 9 cloudy, 5 sunny, and 2 rainy days in March. The rains are usually light. March as well as January and February is considered the most comfortable time to visit Santa Teresa.