August in Southern Pines is the rainiest month of the year. In August, the weather in Southern Pines is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Southern Pines has 11 partly cloudy, 10 rainy, and 10 sunny days in August. The rains are usually moderate. August as well as January, February, March, and December is considered the most uncomfortable time to visit Southern Pines.