The best time to visit Nusa Penida, Indonesia is during the peak season, which is between May and September when you can expect sunny weather, minimal rainfall, and ideal conditions for outdoor activities and tourist attractions. During this period, temperatures range from 26°C (79°F) to 33°C (91°F). 

The rainy season in Indonesia, from October to April, typically brings the highest rainfall. However, it also offers the advantage of lush greenery and fewer tourists, with temperatures ranging from 23°C (73°F) to 30°C (86°F).