I read that monsoon season takes place from about August-October. During that time there could be rain and it could be humid. I wanted to get married in August and the cermony location is outside. I am African American and my hair is natural so if there's any humidity it will frizz up, the same goes for all of my bridesmaids. One reason why I chose Vegas was because of the dry weather, the past two times I've been there its been hot but I had no issues with my hair. Does anyone know personally about the weather in August.