Hourly Weather | Today Monday, January 19, 2026
Carlsbad, California
4 AM
Cloudy Night
41°
Feels Like 43°
0
Humidity: 93%
Wind: 2 mph
UV Index: 0
5 AM
Night
41°
Feels Like 43°
0
Humidity: 91%
Wind: 2 mph
UV Index: 0
6 AM
Night
39°
Feels Like 43°
0
Humidity: 92%
Wind: 2 mph
UV Index: 0
7 AM
Cloudy Weather
45°
Feels Like 45°
0
Humidity: 76%
Wind: 4 mph
UV Index: 0
8 AM
Cloudy Weather
50°
Feels Like 54°
0
Humidity: 57%
Wind: 4 mph
UV Index: 1
9 AM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 47%
Wind: 4 mph
UV Index: 2
10 AM
Cloudy Weather
64°
Feels Like 70°
0
Humidity: 38%
Wind: 4 mph
UV Index: 2
11 AM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 32%
Wind: 5 mph
UV Index: 3
12 PM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 31%
Wind: 7 mph
UV Index: 3
1 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 31%
Wind: 8 mph
UV Index: 3
2 PM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 36%
Wind: 8 mph
UV Index: 2
3 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 41%
Wind: 7 mph
UV Index: 2
4 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 51%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 59%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 67%
Wind: 4 mph
UV Index: 0
7 PM
Cloudy Night
55°
Feels Like 57°
0
Humidity: 75%
Wind: 2 mph
UV Index: 0
8 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 81%
Wind: 2 mph
UV Index: 0
9 PM
Cloudy Night
50°
Feels Like 52°
0
Humidity: 87%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
48°
Feels Like 48°
0
Humidity: 92%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
46°
Feels Like 48°
0
Humidity: 92%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
99 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 35.07 µg/m³
  • PM10: 46.05 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.25 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 AM
97 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 33.78 µg/m³
  • PM10: 44.26 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.24 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 AM
94 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 32.63 µg/m³
  • PM10: 42.84 µg/m³
  • O3: 0.044 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.24 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 AM
91 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 31.2 µg/m³
  • PM10: 41.11 µg/m³
  • O3: 0.044 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 AM
89 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 30.14 µg/m³
  • PM10: 39.75 µg/m³
  • O3: 0.043 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 AM
88 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 29.63 µg/m³
  • PM10: 39.12 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 AM
89 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 30.08 µg/m³
  • PM10: 39.66 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 AM
92 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 31.6 µg/m³
  • PM10: 41.43 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
97 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 34.12 µg/m³
  • PM10: 44.41 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
104 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 37.14 µg/m³
  • PM10: 48.12 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

2 PM
112 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 40.12 µg/m³
  • PM10: 51.74 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

3 PM
118 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.66 µg/m³
  • PM10: 54.75 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

4 PM
123 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 44.77 µg/m³
  • PM10: 57.34 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

5 PM
127 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 46.19 µg/m³
  • PM10: 59.2 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

6 PM
129 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 46.85 µg/m³
  • PM10: 60.14 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

7 PM
129 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 46.9 µg/m³
  • PM10: 60.28 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

8 PM
128 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 46.44 µg/m³
  • PM10: 59.62 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

9 PM
127 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 46.1 µg/m³
  • PM10: 59.09 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

10 PM
126 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 45.88 µg/m³
  • PM10: 58.62 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

11 PM
126 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 45.79 µg/m³
  • PM10: 58.23 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.