Huatulco Mexico's climate is one of its major attractions:  Its warm and semi humid weather allows visitors to enjoy an average annual temperature of 83 degrees.  In early winter, the minimum temperature is 68 degrees and, in the summer, the maximum is 100 degrees.  In recent years the rainy season begins in July and extends through October, with September being the rainiest month.  Bahias de Huatulco enjoys approximately 340 sunny days a year making it truly the Pacific Coast’s Mexican Riviera.