In the Biobío region, temperatures are projected to reach 37 to 38 degrees on Sunday, January 18, and Monday, January 19, particularly in the valleys and precordillera, while the Maule and Ñuble regions could see thermometers rise to 38 or even 39 degrees in interior zones. In the Metropolitan Region, temperatures are expected to range from 34 to 38 degrees, with critical areas such as Lampa and Tiltil experiencing potentially higher readings.