thermosphere temperature
Solar activity strongly influences temperature in the thermosphere. The thermosphere is typically about 200Â° C (360Â° F) hotter in the daytime than at night, and roughly 500Â° C (900Â° F) hotter when the Sun is very active than at other times.Temperatures in the upper thermosphere can range from about 500Â° C (932Â° F) to 2,000Â° C (3,632Â° F) or higher.The boundary between the thermosphere and the exosphere above it is called the thermopause. At the bottom of the thermosphere is the mesopause, the boundary between the thermosphere and the mesosphere below.he thermosphere is typically about 200Â° C (360Â° F) hotter in the daytime than at night, and roughly 500Â° C (900Â° F) hotter when the Sun is very active than at other times. Temperatures in the upper thermosphere can range from about 500Â° C (932Â° F) to 2,000Â° C (3,632Â° F) or higher.