What is the weather like in Charleston vs Houston in September?

In September, Charleston averages 29°C high / 23°C low with about 142 mm of rain; Houston averages 33°C high / 24°C low with about 180 mm.

Charleston vs Houston in September

Charleston is the better pick in September — 69 vs 61 on SeasonMap's comfort score. Charleston is hot, rainy, clean air, while Houston is sweltering, soaked, muggy air.

Charleston vs Houston — September climate, side by side

	🇺🇸 Charleston	🇺🇸 Houston
Comfort score	69/100 (C)	61/100 (C)
Feels-like high	32°C	37°C
Avg high / low	29° / 23°	33° / 24°
Rainfall	142 mm	180 mm
Rainy days	6	8
Humidity	80%	77%
Air quality (AQI)	46	54

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Charleston vs Houston in September — FAQ

Is September better in Charleston or Houston?: Charleston is the better pick in September — 69 vs 61 on SeasonMap's comfort score. Charleston is hot, rainy, clean air, while Houston is sweltering, soaked, muggy air.
What is the weather like in Charleston vs Houston in September?: In September, Charleston averages 29°C high / 23°C low with about 142 mm of rain; Houston averages 33°C high / 24°C low with about 180 mm.