July in Grand Baie is the windiest month of the year. In July, the weather in Grand Baie is typically warm. Average daily high temperature in July is about 23 degrees above zero. On average, Grand Baie has 18 sunny, 10 partly cloudy, and 3 rainy days in July. The rains are usually light. July as well as September, October, and November is considered the most comfortable time to visit Grand Baie.