In the Indonesian archipelago, tropical wet climates are very dominant. Climate change mainly depends on the monsoon.
There are only two seasons, dry season and wet (rainy) season. The wet season lasts from October to April and results from the northwestern monsoon (wet monsoon), which begins to blow in September. The wet season comes to an end when this monsoon stops. It is followed by the dry south-eastern monsoon starting in June and ending in September