ClimateAverages

Charleston Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
28.8°C
September overnight low
19.8°C
September average
24.4°C

In September, Charleston typically sees daytime highs of 28.8°C and overnight lows around 19.8°C. Compared to the annual average high of 23.5°C, September runs +5.3°C.

vs. annual avg high
+5.3°C
Rank among 12 months
#4 warmest
Hottest year overall
2016

Where September ranks in Charleston

JanFebMarAprMayJunJulAugSep29°OctNovDec

FAQ

What is the average temperature in Charleston in September?

September in Charleston averages a daytime high of 28.8°C and an overnight low of 19.8°C.

Is September warm or cold in Charleston?

September runs +5.3°C compared to Charleston's annual average high of 23.5°C, ranking #4 of 12 months by warmth.

What should I pack for Charleston in September?

Plan for daytime highs near 28.8°C and cooler evenings around 19.8°C.

Other months for Charleston

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

ColumbiaNorth CharlestonMount PleasantRock HillGreenville