section_path: Geography/Climate
section_name: Climate
paragraph_text: Climate
  
  Indonesia lies along the equator, and its climate tends to be relatively even year-round. Indonesia has two seasons—a dry season and a wet season —with no extremes of summer or winter. For most parts of Indonesia, the dry season falls between May and October, while the wet season falls between November and April. Indonesia's climate is almost entirely tropical, dominated by the tropical rainforest climate found on every large island of Indonesia. Cooler climate types exist in mountainous regions that are 1,300 to 1,500 metres (4,300 to 4,900 feet) above sea level. The oceanic climate (Köppen Cfb) prevails in highland areas adjacent to rainforest climates, with uniform precipitation year-round. In highland areas near the tropical monsoon and tropical savanna climates, the subtropical highland climate (Köppen Cwb) is more pronounced during dry season.
  
  Some regions, such as Kalimantan and Sumatra, experience only slight differences in rainfall and temperature between the seasons, whereas others, such as Nusa Tenggara, experience far more pronounced differences with droughts in the dry season and floods in the wet season. Rainfall varies across regions, with more in western Sumatra, Java, and the interiors of Kalimantan and Papua, and less in areas closer to Australia, such as Nusa Tenggara, which tends to be relatively dry. The almost uniformly warm waters that constitute 81% of Indonesia's area ensure that land temperatures remain relatively constant. Humidity is quite high, at between 70 and 90%. Winds are moderate and generally predictable, with monsoons usually blowing in from the south and east in May through October and from the north and west in November through April. Typhoons and large-scale storms pose little hazard to mariners; significant dangers come from swift currents in channels, such as the Lombok and Sape straits.
  
  Several studies consider Indonesia to be at severe risk from the projected effects of climate change. These include unreduced emissions resulting in an average temperature rise of around 1 °C (2 °F) by mid-century, raising the frequency of drought and food shortages (with an impact on precipitation and the patterns of wet and dry seasons, and thus Indonesia's agriculture system) as well as numerous diseases and wildfires. Rising sea levels would also threaten most of Indonesia's population, who live in low-lying coastal areas. Impoverished communities would likely be affected the most by climate change.