Average monthly water temperature in Idyllwild, the United States of America
On this page you find the mean water temperature over the year in Idyllwild (California), the United States of America. Understand how water temperatures vary throughout the year.
Idyllwild experiences water temperature shifts throughout the year. The warmest month, August, reaches an average of 21°C (70°F).
The coldest month, February, averages 13°C (55°F). Visitors during these months can leave their swimming gear at home.