About Cayce, SC's Climate & Weather History

With a population of around 13,600, Cayce sits in South Carolina, United States. The city operates in the Eastern Time Zone.

In 2025, Cayce recorded an average annual temperature of 65°F. The hottest temperatures reached 103°F in July; the coolest were 20°F in December. Total precipitation for the year was 38 inches, with the wettest month being May. Snowfall for the year totaled approximately 1 inches.