Está lloviendo a cántaros
It's the equal for the English version of "pouring" when it's raining. A "cántaro" is a big clay pitcher, used to store great amounts of water.
Note: Also it is used in some other Spanish-speaking countries
"¿Está lloviendo hoy?" "Sí, a cántaros."
Submitted August 2020
Confirmed by 2 people