Today | Weather | Tuesday, December 9, 2025

Weather in Charleston, South Carolina

08:16 PM
Now
Night
37° F
Feels Like 37°
Precipitation 0 %
Wind 5 mph
Humidity 89 %
Today
Night
Day 41°
Night 34°
Precipitation 1 %
Wind 5 mph

Charleston Weather Forecast Updated

9 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 9, 2024)
Rainy Weather

Day

66°

Night

61°

Wind

7 mph

Precipitation

87 %

Air Quality in Charleston

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.39 µg/m³
PM10 2.66 µg/m³
O3 0.041 ppm
NO2 1 ppb
SO2 0.4 ppb
CO 0.13 ppm
NH3 0.18 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.39 µg/m³
PM102.66 µg/m³
O380.53 µg/m³
NO21.86 µg/m³
SO21.14 µg/m³
CO143.34 µg/m³
NH30.18 µg/m³
NO0 µg/m³