In terms of precipitation, rainfall in Yeosu ranges from 0.9 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. January is typically the driest time to visit Yeosu when rainfall is around 0.9 in.
If weather is an important factor for your trip to Yeosu, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).