In terms of precipitation, rainfall in Palenque ranges from 3.4 - 18.4 inches per month. September is typically the wettest month, when rainfall can reach 18.4 in. April is typically the driest time to visit Palenque when rainfall is around 3.4 in.
If weather is an important factor for your trip to Palenque, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).