Air Quality in Carlsbad, United States
Windy
29.0°C · 22.1% humidity
29.0°
Feels 29.0°
76
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Carlsbad's air quality — share it
AQI Forecast
25
3pm
25
25
76
6pm
64
53
53
9pm
47
44
41
12am
39
38
37
3am
36
55
55
6am
55
34
27
9am
27
27
27
12pm
27
27
Air Quality Index Trend
21h · 1 stnCarlsbad's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Carlsbad is 4.8× the WHO annual guideline of 5 µg/m³.
22.1%
Humidity
90.6 km/h
Wind ESE
1004.6 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
24.0 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Carlsbad?
Temperature & Precipitation
PM2.5 Trend
21h · 1 stationPM2.524.0 µg/m³
×1.6 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX2.2
Moderate
Station readings (1 station within 25 km)
24.0
Median
24.0
Average
24.0
Low
24.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -17.8
What is the 7-day forecast for Carlsbad?
05-29
29.1° 17.9°
0.44 mm
05-30
32.7° 21.8°
0.56 mm
05-31
30.4° 17.8°
06-01
38.8° 23.6°
1.69 mm
06-02
34.2° 21.5°
06-03
34.0° 24.0°
0.13 mm
06-04
33.1° 19.5°
0.06 mm
Both models agree
Avg diff: 3.7°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:24 UTC.