Today | Weather | Wednesday, December 10, 2025

Weather in San Diego, California

12:10 PM
Now
Sunny Weather
79° F
Feels Like 81°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 30 %
Today
Sunny Weather
Day 79°
Night 48°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 3

San Diego Weather Forecast Updated

16 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 10, 2024)
Cloudy Night

Day

72°

Night

43°

Wind

6 mph

Precipitation

0 %

Air Quality in San Diego

NOW
150 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 55.57 µg/m³
PM10 64.33 µg/m³
O3 0.051 ppm
NO2 0.7 ppb
SO2 0.3 ppb
CO 0.38 ppm
NH3 0.16 µg/m³
NO 0.18 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.555.57 µg/m³
PM1064.33 µg/m³
O399.9 µg/m³
NO21.39 µg/m³
SO20.86 µg/m³
CO430.84 µg/m³
NH30.16 µg/m³
NO0.18 µg/m³