Whether you're visiting Santa Catalina Island in the United States of America during the peak of September (25°C (77°F)) or the cooler months around December (17°C (63°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Avalon, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Santa Catalina Island during April, May, June, July, August, September, October and November is comfortably warm, with average temperatures ranging from 20°C (68°F) to 25°C (77°F).
When it comes to rainfall, Santa Catalina Island sees significant variations throughout the year. December tends to be the wettest, receiving 60 mm (2.4 in) of rain, while August is much drier with just 0 mm (0 in). April, May, June, July, August, September, October and November marks the driest time of year, with rainfall falling below 16 mm (0.6 in).
For those seeking sunshine, July usually has the brightest skies, making it an excellent time for exploring the region.
