There are
839 mi
from Tempe, AZ to Clearlake, CA
That's the driving distance. It would take 15 hours 44 mins to go from Tempe, Arizona to Clearlake, California.
The flight distance (direct flight from Tempe, AZ to Clearlake, CA) is 707.18 mi.
839 mi = 1,350.80 kms