Taking into account the local weather in Bondowoso is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually October and September with an average temp of 76°F, while the coldest months are February and March with an average of 75°F. The rainiest months in Bondowoso are January, December, February, and March, with each month seeing an average of 25 inches of rainfall.