Poso's climate is characterized by a dry season that typically begins in April and lasts through September. During these months, temperatures range from 26°C to 30°C, with an average of around 28°C. The wet season, which usually starts in October, brings warmer temperatures, with March being one of the warmest months, averaging around 29°C. Overnight temperatures remain relatively consistent throughout the year, rarely dipping below 20°C. Overall, Poso's climate is warm and humid, with minimal temperature fluctuations between seasons.