Challenges and difficulties arise when drying coffee in high humidity and cloudy conditions. The moisture in the air slows down the drying process, making it harder to reach the desired moisture content. The lack of sunlight and heat also prolongs the drying time, increasing the risk of mold or mildew developing on the coffee. Additionally, the damp conditions can negatively affect the flavor profile of the coffee, resulting in a less desirable taste. Proper management and adaptation to these conditions are crucial to ensure successful drying of the coffee.