About Guazacapan, Santa Rosa Department's Climate & Weather History

With a population of around 18,900, Guazacapan sits in Santa Rosa Department, Guatemala. The city operates in the America/Guatemala time zone.

In 2025, Guazacapan recorded an average annual temperature of 78°F. The hottest temperatures reached 101°F in April; the coolest were 66°F in January. Total precipitation for the year was 96 inches, with the wettest month being October.