Air Quality in San Carlos, United States

Windy
15.8°C · 53.2% humidity
15.8°
Feels 15.8°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 3pm
54
54
40 6pm
44
47
49 9pm
50
51
52 12am
53
53
53 3am
54
54
54 6am
34
34
34 9am
34
54
54 12pm
54
34
AD 728×90

Air Quality Index Trend

47h · 1 stn

San Carlos's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

53.2%
Humidity
80.7 km/h
Wind W
1017.3 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
40
9.65 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for San Carlos?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.59.65 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250

What is the 7-day forecast for San Carlos?

06-09
16.4° 9.5°
06-10
22.5° 10.8°
06-11
25.1° 14.4°
06-12
22.5° 11.2°
06-13
19.2° 10.5°
06-14
21.9° 11.0°
06-15
20.3° 10.7°
Both models agree Avg diff: 4.1°C

Where are air quality stations near San Carlos?

25
Redwood City, San Mateo, California
5.7 km PM2.5: 6.0 µg/m³
28
Redwood City, San Mateo, California
5.7 km PM2.5: 6.7 µg/m³
15
Emerald Hills
5.9 km PM2.5: 3.7 µg/m³
14
Berkeley-Palo Alto
11.6 km PM2.5: 3.4 µg/m³
15
Acterra!
16.2 km PM2.5: 3.7 µg/m³
17
Belle Air School
18.2 km PM2.5: 4.1 µg/m³
18
Parkside Intermediate School
18.5 km PM2.5: 4.3 µg/m³
28
Parkside Intermediate School (redeployment)
18.5 km PM2.5: 6.6 µg/m³
18
Brentwood Park
21.0 km PM2.5: 4.2 µg/m³
19
California and Cypress Ave
21.2 km PM2.5: 4.6 µg/m³

What cities are near San Carlos?

40 Belmont 40 Redwood City 40 Foster City 40 San Mateo 29 Menlo Park 29 East Palo Alto 17 Burlingame 29 Palo Alto 17 Millbrae 29 Los Altos
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T01:06 UTC.