In terms of precipitation, rainfall in Khon Kaen ranges from 0.0 - 10.6 inches per month. September is typically the wettest month, when rainfall can reach 10.6 in. December is typically the driest time to visit Khon Kaen when rainfall is around 0.0 in.
If weather is an important factor for your trip to Khon Kaen, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).