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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Sunday, December 14, 2025
Active Weather Warnings
Carlsbad, California
6 AM
Foggy Weather
48°
Feels Like 48°
23
Humidity: 95%
Wind: 2 mph
UV Index: 0
7 AM
Foggy Weather
46°
Feels Like 46°
0
Humidity: 98%
Wind: 4 mph
UV Index: 0
8 AM
Foggy Weather
50°
Feels Like 50°
0
Humidity: 94%
Wind: 4 mph
UV Index: 0
9 AM
Foggy Weather
54°
Feels Like 55°
0
Humidity: 84%
Wind: 4 mph
UV Index: 1
10 AM
Foggy Weather
59°
Feels Like 59°
0
Humidity: 73%
Wind: 5 mph
UV Index: 1
11 AM
Foggy Weather
63°
Feels Like 63°
0
Humidity: 69%
Wind: 6 mph
UV Index: 1
12 PM
Foggy Weather
66°
Feels Like 64°
0
Humidity: 66%
Wind: 7 mph
UV Index: 1
1 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 73%
Wind: 8 mph
UV Index: 3
2 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 74%
Wind: 8 mph
UV Index: 2
3 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 77%
Wind: 7 mph
UV Index: 2
4 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 81%
Wind: 7 mph
UV Index: 1
5 PM
Cloudy Night
61°
Feels Like 59°
0
Humidity: 87%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 91%
Wind: 4 mph
UV Index: 0
7 PM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 93%
Wind: 2 mph
UV Index: 0
8 PM
Cloudy Night
54°
Feels Like 55°
0
Humidity: 93%
Wind: 2 mph
UV Index: 0
9 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 95%
Wind: 2 mph
UV Index: 0
10 PM
Cloudy Night
52°
Feels Like 54°
0
Humidity: 97%
Wind: 2 mph
UV Index: 0
11 PM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 96%
Wind: 2 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 15.81 µg/m³
  • PM10: 25.83 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.12 µg/m³
  • PM10: 25.17 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.81 µg/m³
  • PM10: 24.66 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.44 µg/m³
  • PM10: 24.12 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.38 µg/m³
  • PM10: 23.01 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 AM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.82 µg/m³
  • PM10: 21.4 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

12 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.51 µg/m³
  • PM10: 20.11 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

1 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.64 µg/m³
  • PM10: 19.12 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

2 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.75 µg/m³
  • PM10: 18.01 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

3 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.9 µg/m³
  • PM10: 16.9 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

4 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.24 µg/m³
  • PM10: 16.03 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

5 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 15.53 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

6 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 15.37 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.78 µg/m³
  • PM10: 15.43 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.98 µg/m³
  • PM10: 15.72 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

9 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.3 µg/m³
  • PM10: 16.15 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

10 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.64 µg/m³
  • PM10: 16.57 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

11 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 16.87 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Carlsbad

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued December 13 at 11:24PM PST until December 14 at 9:00AM PST by NWS San Diego CA
Dec 13, 11:24 PM → Dec 14, 9:00 AM
WHAT: Visibility one quarter mile or less in dense fog.

WHERE: San Diego County Coastal Areas and San Diego County
Valleys.

WHEN: Until 9 AM PST Sunday.

IMPACTS: Low visibility could make driving conditions hazardous,
including along portions of I-15, I-8, and Highway 163.
+ Read More
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Updated: Dec 14, 3:43 AM Source: NWS Alert