Editing Geography of Indonesia (section)

== Climate ==
{{main|Climate of Indonesia}}
{{see also|Climate change in Indonesia}}
[[File:Koppen-Geiger Map IDN present.svg|thumb|374x374px|[[Köppen climate classification|Köppen–Geiger climate classification]] map for Indonesia]]
Lying along the equator, Indonesia's climate tends to be relatively even year-round. Indonesia has two seasons—a wet season and a dry season—with no extremes of summer or winter. For most of Indonesia, the dry season falls between May and October while the wet season between November and April.

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. Rainfall in Indonesia is plentiful, particularly in west Sumatra, northwest Kalimantan, west Java, and western New Guinea.

Parts of Sulawesi and some islands closer to Australia, such as [[Sumba]] and [[Timor]], are drier; however, these are exceptions. The almost uniformly warm waters that make up 81% of Indonesia's area ensure that temperatures on land remain fairly constant, with the coastal plains averaging {{convert|28|°C|1}}, the inland and mountain areas averaging {{convert|26|°C|1}}, and the higher mountain regions averaging {{convert|23|°C|1}}. The area's relative humidity ranges between 70 and 90%.

Winds are moderate and generally predictable, with [[monsoon]]s usually blowing in from the south and east in June through October and from the northwest in November through March. [[Typhoon]]s and large scale storms pose little hazard to mariners in Indonesia waters; the major danger comes from swift currents in channels, such as the [[Lombok Strait|Lombok]] and [[Sape Strait|Sape]] straits.

Indonesia's climate is almost entirely tropical, dominated by the tropical rainforest climate found in every major island of Indonesia, followed by the tropical monsoon climate that predominantly lies along Java's coastal north, Sulawesi's coastal south and east, and Bali, and finally the tropical savanna climate, found in isolated locations of Central Java, lowland East Java, coastal southern Papua and smaller islands to the east of Lombok.

However, cooler climate types do exist in mountainous regions of Indonesia 1,300–1,500 metres above sea level. The oceanic climate (Köppen ''Cfb'') prevail in highland areas with fairly uniform precipitation year-round, adjacent to rainforest climates, while the subtropical highland climate (Köppen ''Cwb'') exist in highland areas with a more pronounced dry season, adjacent to tropical monsoon and savanna climates.

Above 3000 metres is where cold, subpolar climates dominate and where frost and occasional snow become more commonplace. The subpolar oceanic climate (Köppen ''Cfc''), existing between 3,000 and 3,500 metres, can be found on the mountain slopes of Indonesia's highest peaks, and serves as a transition between oceanic climates and tundra climates. Tundra climates (Köppen ''ET''), are found anywhere above 3500 metres on the highest peaks of Indonesia, including the permanently snow-capped peaks in Papua. In this climate regime, average monthly temperatures are all below 10&nbsp;°C, and monthly precipitation is uniform.