Today | Weather | Monday, September 14, 2026

Weather in Carlsbad, California

03:26 AM
Now
Cloudy Weather
66° F
Feels Like 66°
Precipitation 0 %
Wind 4 mph
Humidity 98 %
Today
Cloudy Weather
Day 79°
Night 64°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 7

Carlsbad Weather Forecast Updated

2 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 14, 2025)
Cloudy Weather

Day

77°

Night

61°

Wind

7 mph

UV Index

70

Precipitation

0 %

Air Quality in Carlsbad

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.21 µg/m³
PM10 29.27 µg/m³
O3 0.044 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.16 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.56.21 µg/m³
PM1029.27 µg/m³
O385.43 µg/m³
NO20.41 µg/m³
SO20.72 µg/m³
CO186.9 µg/m³
NH30 µg/m³
NO0 µg/m³