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 22 degrees above zero. On average, Santa Cruz de la Palma has 24 sunny, 5 partly cloudy, and 1 rainy day in September. The rains are usually light. September as well as June, July, and August is considered the most comfortable time to visit Santa Cruz de la Palma.