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Hot springs near San Francisco

10 hot springs within 160 miles of San Francisco, nearest first. Distances are straight-line, so allow more by road, especially when mountain passes close in winter. The closest is Calistoga Spa Hot Springs near Calistoga, about 56 miles away. 1 is free and 9 are resorts or developed pools. Closures, wildfires and weather warnings are checked every day.