Air Quality in Carlsbad, United States
Windy
24.3°C · 46.5% humidity
24.3°
Feels 24.3°
76
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Carlsbad's air quality — share it
AQI Forecast
34
11am
34
34
76
2pm
64
56
69
5pm
45
42
40
8pm
38
37
36
11pm
35
55
55
2am
35
34
34
5am
54
34
34
8am
34
34
Air Quality Index Trend
46h · 4 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.
46.5%
Humidity
55.3 km/h
Wind WSW
1012.2 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
24.0 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Carlsbad?
Temperature & Precipitation
PM2.5 Trend
46h · 4 stationsPM2.524.0 µg/m³
×1.6 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (1 station within 25 km)
24.0
Median
24.0
Average
24.0
Low
24.0
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -16.9
What is the 7-day forecast for Carlsbad?
05-28
25.3° 13.2°
05-29
28.4° 13.0°
05-30
22.0° 12.4°
05-31
23.8° 15.3°
06-01
26.8° 13.8°
06-02
26.4° 10.6°
06-03
24.9° 11.5°
Both models agree
Avg diff: 2.7°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 2026-05-28T21:47 UTC.