which is hotter magma or lava
However, once a volcano gets going, the mercury really starts to climb. Bright red lava flows in Hawaii can get as hot as 1,165 F, with the glowing orange flows getting hotter than 1,600 F, according to USGS. And when rock is seriously melting, such as the magma within the Hawaiian volcano of Kilauea, it can reach 2,120 F, according to USGS.