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