Mon, 04 May 2026 15:12:56 +0000

December in California: When the Heat Gives Way to Wild Surprises You Didn’t See Coming If you thought California in December was just a mild wind-down from summer heat, think again. While the coastal regions cool down and temperatures dip into the pleasant 60s–70s°F (15–25°C), December brings a surprising cast of weather and nature events you won’t expect—wild surprises that turn the Golden State into an unexpected wonderland. ### Beyond the Mild Temperature: What December Brings to California Typically, January is California’s coolest month, but December often veers from expected warmth into a tapestry of shifting conditions. Morning fog rolls in off the Pacific, painting the coastal hills in soft gray veils—a stark contrast to the dry heat of late summer. But closer to inland areas, a unique blend of lingering summer moisture, winter storms, and rare phenomena transform the landscape in unexpected ways.