For Business Class flights, the cheapest month to fly this route is August. The most expensive months are December and October.
In terms of precipitation, rainfall in Indonesia ranges from 20.0 - 340.0 inches per month. January is typically the wettest month, when rainfall can reach 340.0 mm. August is typically the driest time to visit Indonesia when rainfall is around 20.0 mm.
If weather is an important factor for your trip to Indonesia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 26.0 C).
Booking a Business Class flight 34 days in advance of your planned departure date is, on average, the best time to get cheap flights to Indonesia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.