September in Santa Cruz de Tenerife is the warmest month of the year. In September, the weather in Santa Cruz de Tenerife is typically warm. Average daily high temperature in September is about 23 degrees above zero. On average, Santa Cruz de Tenerife has 25 sunny and 5 partly cloudy days in September. September as well as June, July, August, and October is considered the most comfortable time to visit Santa Cruz de Tenerife.