According to Köppen climate classification, Quetzaltenango features a subtropical highland climate. In general, the climate in Quetzaltenango can go from mild to chilly, with occasional sporadic warm episodes. The daily high is usually reached around noon. From then on, temperatures decrease exceptionally fast. The city is quite dry, except during the rainy season. Quetzaltenango is the chilliest major city in Guatemala.
There are two main seasons in Quetzaltenango (as in all of Guatemala); the rainy season, which generally runs from late May through late October, and the dry season, which runs from early November until April. During the rainy season, rain falls consistently, usually in the afternoons, but there are occasions in which it rains all day long or at least during the morning. During the dry season, the city frequently will not receive a single drop of rain for months on end.
Coldest months are November through February, with minimum temperatures averaging 4 °C, and Maximum temperatures averaging 22 °C.
Warmest months are March through July, with minimum temperatures averaging 8 °C and Maximum temperatures averaging 23 °C.
Yearly, average low is 6 °C, and average high is 22 °C
