Gunungsitoli experiences a warm and humid climate throughout the year. The dry season typically begins in May and lasts until October, with temperatures ranging from 26-31°C. June and July are usually the hottest months, with an average temperature of 29-30°C. During this period, rainfall is minimal, with some occasional showers. As the year progresses to November, the rainy season starts, bringing more frequent and intense rainfall, with temperatures slightly cooler than the dry season.