Weather Conditions

Stretching over 3,100 miles (5,000km) from east to west and almost 1,242 miles (2,000km) from north to south, Indonesia straddles the Equator and has a typical equatorial climate. The east monsoon from June to September brings dry weather, while the west monsoon from December to March brings rain. Occasional rain showers occur in between these two seasons as a transitional period.

Mean temperatures at sea level are uniform, varying by only a few degrees throughout the region, and throughout the year 78º- 82ºF (25º- 28ºC). Coastal areas are often pleasantly cool; however, it can get extremely cold in the mountains with temperature decreasing 2ºF (1ºC) for every 656 feet (200m) of altitude, which provides a cool pleasant climate in upland communities.