Planning for the weather is an important factor for making your trip to Bucaramanga a success, especially when you're splurging. The hottest months are usually February and March with an average temp of 66°F, while the coldest months are January and December with an average of 65°F. The rainiest months in Bucaramanga are May, October, November, and June, with each month seeing an average of 22 inches of rainfall.