Seonghwan, in Chungcheongnam-do, South Korea, is home to roughly 29,200 people in the Korea Standard Time zone at 36.9°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Seonghwan recorded a mean annual temperature of 56°F, ranging from 10°F lows in January to 97°F highs in July, with about 51 inches of precipitation across the year.
View historical weather for Seonghwan · More cities in Chungcheongnam-do