WEATHER


The climate of Indonesia is tropical, hot and humid year round although there is a wet and a dry season. However with the islands varying in size and a diverse topography there are of course regional variations in the climate. The coastal regions tend to be the warmest, with the inland areas being cooler. The mountainous terrain on some of the islands will again bring cooler temperatures.

Generally, as Indonesia sits over the equator, the temperature is fairly consistent throughout the year. The average high temperature rarely strays far from 31°C, and the average low temperature is usually around 23°C. The humidity is constantly high and increases even further in the rain forests of Kalimantan.

Rainfall can be expected at any time of year but the amount varies from place to place. Also some places experience more noticeable differences between the wet and the dry season, with others only experiencing slight variation between the seasons. There is great regional variation in terms of the length of each season

The wet season in the main tourist areas of Jakarta, Bali, Lombok and most of Borneo, generally lasts from November until April. During this season, the weather of the islands is dominated by the north-western monsoon winds which bring huge volumes of rain in torrential tropical storms. Heavy rainfall crashes down in violent thunderstorms and can cause flash flooding and landslides.

The islands closest to Australia actually have quite dry climates. This season is generally more overcast and unpredictable. It still sees around six hours of sunshine but these hours are frequently broken by short downpours. It is important for travellers to remember that even when the sky is a heavy grey the UV index remains high, and sun block should be worn at all times.

The dry season, from May to October, is not totally dry in most places. However, storms become shorter and occur less frequently and the sun shines for around nine hours a day.


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