Today | Weather | Monday, August 24, 2026

Weather in San Diego, California

09:17 PM
Now
Cloudy Night
75° F
Feels Like 75°
Precipitation 0 %
Wind 6 mph
Humidity 75 %
Today
Cloudy Night
Day 90°
Night 70°
Precipitation 0 %
Wind 5 mph

San Diego Weather Forecast Updated

31 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 24, 2025)
Cloudy Weather

Day

81°

Night

66°

Wind

8 mph

UV Index

90

Precipitation

0 %

Air Quality in San Diego

NOW
71 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 21.79 µg/m³
PM10 37.59 µg/m³
O3 0.036 ppm
NO2 0.4 ppb
SO2 0.2 ppb
CO 0.09 ppm
NH3 0 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.521.79 µg/m³
PM1037.59 µg/m³
O371.56 µg/m³
NO20.73 µg/m³
SO20.58 µg/m³
CO105.45 µg/m³
NH30 µg/m³
NO0 µg/m³