Planning for the weather is a good way to make your trip to Bondowoso relaxing and enjoyable, especially when you're splurging. The hottest months are usually October and September, with an average temperature of 25°C, while the coldest months are February and March, with an average of 24°C. The rainiest months in Bondowoso are January, December, February and March, with each month seeing an average of 627 mm of rainfall.