Two wet seasons a year
The nearby IDEAM station at La Virginia records two wet seasons: April–May and October–November, with about 20 rainy days a month. January–February and July–August are drier.
Concrete pours, slabs, roofs and façade work are best planned outside the wet months. The app warns when one of those stages falls in them and can move it to the next drier window.
Source: Cartago, Valle del Cauca: climate (IDEAM normals 1981–2010, La Virginia station) – read it

