Yes, magma is generally hotter than lava. To understand why, we need to look at the definitions and characteristics of both.
Magma is molten rock that is found beneath the Earth’s surface. It forms at depths where the temperature and pressure are extremely high, often exceeding 1,000 degrees Celsius (1,832 degrees Fahrenheit). Due to these conditions, magma can retain a higher temperature before it erupts.
When magma erupts through a volcano and reaches the surface, it is called lava. During this transition, the lava can lose some of its heat due to exposure to the much cooler atmosphere. While lava is still very hot, it typically ranges from about 700 to 1,200 degrees Celsius (1,292 to 2,192 degrees Fahrenheit) as it flows.
In summary, magma, found underground, is hotter than lava, which is the molten rock once it reaches the Earth’s surface. This difference in temperature is due to the heat loss that occurs as magma erupts and transforms into lava.