August in Saint George's is the rainiest month of the year. In August, the weather in Saint George's is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Saint George's has 26 rainy, 3 sunny, 1 cloudy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as June, July, September, and October is considered the most uncomfortable time to visit Saint George's.