Santiago faces a day of intense cold and fog on Tuesday, Sept. 23 [1], according to weather forecasts.
These conditions impact the Región Metropolitana by disrupting morning visibility and requiring residents to prepare for a significant drop in temperatures. The weather shift is driven by the arrival of frontal systems in the central zone of Chile [2], [3].
Iván Torres, a meteorologist for TVN, said the city can expect low maximum temperatures throughout the day [1]. The presence of fog is expected to be a primary characteristic of the morning atmosphere, which often complicates transit and outdoor activities in the urban center [1].
Beyond the cold and fog, there is a possibility of rain in the area [1], [4]. These precipitation patterns are linked to the same frontal systems causing the temperature decline [2], [3]. The interaction of these atmospheric systems typically brings instability to the central region, leading to fluctuating conditions over several days [4].
Residents are advised to monitor updated reports as the frontal systems move through the region. The combination of low temperatures and moisture increases the likelihood of persistent fog, which can linger until the sun reaches its peak [1].
“Santiago faces a day of intense cold and fog on Tuesday, Sept. 23”
The arrival of frontal systems in central Chile typically signals a transition in weather patterns that can affect agriculture and urban infrastructure. When low maximum temperatures coincide with high humidity and fog, it increases the risk of traffic accidents and puts additional pressure on energy grids as heating demand rises.





