Best Time to Visit Indonesia
The whole archipelago is tropical with temperatures always between 21˚C and 33˚C although cooler in the mountains. The year divides into a wet and dry seasons, although sometimes It is often hard to tell the difference. Very roughly, in much of the country, November to April is the wet season with rainfall occurring in short, heavy bursts with January and February the wettest. May to October is the dry season. In some regions, the difference between the two seasons is not extreme. For example, Bali and Kalimantan are relatively unaffected by the season change. However, as you travel east to Lombok and beyond, there is a greater difference.
The best months for diving off the coast of Bali, Lombok or the Komodo National Park are April to September. To climb one of Indonesia's many volcanoes, such as Mount Bromo or Mount Rinjani, the dry season is recommended. The temperature will cool off as you climb.
The months of May, June and September are possibly the best time to visit Bali when the weather conditions are at their best and visitor numbers are not at their highest. Ubud and Mount Batur experience cooler temperatures and higher rainfall than the coastal areas of Bali.
Orang-utans can be spotted in the Tanjung Puting National Park throughout the year, although during rainy season they tend to be more elusive, preferring to shelter.
Average Temperatures.
| | Jan | Apr | Jun | Aug | Oct |
| Bali | 29 C/84 F | 32 C/90 F | 32 C/90 F | 31 C/88 F | 31 C/88 F |
| Jakarta | 30 C/86 F | 32 C/90 F | 32 C/90 F | 32 C/90 F | 33 C/91 F |
NOTE – All quoted temperatures are daytime average highs unless otherwise stated and can vary.
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