Indonesia has a tropical climate that varies slightly between the islands. Even within an island, the highlands can experience variants from the coastal towns. In general, Jun to Sep is the driest period while from Dec to Mar the monsoons bring heavy rains on and off throughout the day. During this time of year there are fewer crowds and the rice paddies are a stunning deep green, so if you can brave a few showers throughout the day and are not set on returning with a suntan this is an extremely enjoyable time to visit. Daytime temperatures hover around 25 - 30ºC but higher elevations are much cooler. Indonesia celebrates a number of religious holidays and although unlikely to cause disruptions to travels, holidays such as Islam’s Eid in Sep and the Christian Good Friday in Apr may be busy with local travelers.