San Agustin Acasaguastlan, Guatemala experiences a relatively consistent climate throughout the year. Daytime temperatures can soar up to 40-41°C in April and May, while nighttime temperatures remain mild at around 10-14°C during the same period. The coolest months are January and February, with average temperatures ranging from 5-9°C, but even these months see significant temperature fluctuations between day and night. Summer-like conditions prevail from March to October, with temperatures gradually cooling down towards December. Overnight lows remain relatively steady around 6-12°C throughout the year, while daytime highs peak in April and May.