Humidity Levels in South Carolina During September

The average humidity in September is listed below for places in South Carolina. The tables give daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In this table, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 7 am and Afternoon measures are for 4 pm local standard time.

Average relative humidity (%) in September
Daily Place Morning Afternoon
78 Charleston 89 63
76 Columbia 92 54
76 Greer 89 57

Highest and Lowest Humidity

Below are the averages during September for maximum and minimum humidity levels in South Carolina. The hours when this month's highest and lowest humidity readings usually occur are given in local standard time.

Daily high and low relative humidity (%) averages in September
High Time Place Low Time
90.2 4 am Charleston 60.8 1 pm
91.9 7 am Columbia 53.8 4 pm
89.2 7 am Greer 57.0 4 pm

World Data Center for Meteorology. Climate of the World.

South Carolina Humidity
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