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In terms of precipitation, rainfall in Popayán ranges from 1.6 - 11.4 inches per month. November is typically the wettest month, when rainfall can reach 11.4 in. July is typically the driest time to visit Popayán when rainfall is around 1.6 in.
If weather is an important factor for your trip to Popayán, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).