How cold is the asthenosphere?

The asthenosphere, which lies beneath the lithosphere in the Earth's mantle, has temperatures that typically range from about 1,300 to 3,000 degrees Celsius (2,372 to 5,432 degrees Fahrenheit). Despite these high temperatures, the asthenosphere is partially molten and behaves like a viscous fluid, allowing tectonic plates to move over it. The exact temperature can vary based on depth and location within the mantle.