Planning for the weather is an important factor for making your trip to Bandar Lampung a success, especially when you're splurging. The hottest months are usually October and September with an average temp of 79°F, while the coldest months are August and September with an average of 79°F. The rainiest months in Bandar Lampung are March, February, January, and December, with each month seeing an average of 15 inches of rainfall.