Sagua de Tanamo's climate is characterized by high temperatures and humidity throughout the year. Winters are mild with average highs of around 28°C in January, the coolest month, while summers are hot with temperatures often reaching 34°C in July, the warmest month. The dry season runs from February to June, during which time precipitation is scarce, with May being the driest month. The rainy season begins in July and continues through November, bringing significant rainfall and high humidity. The temperature remains relatively stable throughout the year, varying by only a few degrees between the coolest and warmest months.