In terms of precipitation, rainfall in Colombia ranges from 1.6 - 5.5 inches per month. October is typically the wettest month, when rainfall can reach 5.5 in. January is typically the driest time to visit Colombia when rainfall is around 1.6 in.
If weather is an important factor for your trip to Colombia, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 55.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).