Abstract: This study analyzed the temporal characteristics of heavy fog and its relations with meteorological elements in Jingmen Station from 2006 to 2015. The results showed that radiation fog was the main type of fogs in the Jinmen Area, which occurred mainly in winter, followed by spring, autumn, and summer in a descending order. The dense fogs generally appeared in the early morning, which lasted from one to three hours. The occurrence of fogs was related to relative humidity, wind, low clouds, and precipitation. The occurrence of fog may not be considered if the relative humidity at 14 BT of the previous day was≤40%. However, the possibility of fogging was greater if the relative humidity was≥50%. If the wind speed was≤3 m/s at 02, 08, 14, 20 BT of the previous day and 02 BT on the forecast day, the possibility of fogging was large. Precipitation that occurred within a few days before could increase the probability of fogging. At 20 BT on the previous day, there was no low cloud in the sky, which promoted the formation of the sunrise fog. Three types of heavy fogs in the Jinmen Area can be classified: continuous westward airflow type, weak ridge transit type, and the northwest airflow type, with the later one occurring at the highest frequency and the former two occurring at a similar frequency.