Air Quality in Redwood City, United States

Partly Cloudy
22.8°C · 67.8% humidity
22.8°
Feels 22.8°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
20 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
34
34
36 8am
34
34
34 11am
34
34
34 2pm
34
27
27 5pm
34
34
34 8pm
34
34
34 11pm
34
34
34 2am
34
34
AD 728×90

Air Quality Index Trend

45h · 105 stn

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

67.8%
Humidity
10.2 km/h
Wind NNW
1016.6 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
36
8.67 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Redwood City?

Temperature & Precipitation

PM2.5 Trend

45h · 105 stations
PM2.58.67 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (20 stations within 25 km)
8.67
Median
5.8
Average
2.98
Low
12.0
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -1.3

What is the 7-day forecast for Redwood City?

09-05
25.7° 13.0°
09-06
26.7° 14.7°
09-07
28.3° 11.0°
09-08
27.4° 12.3°
09-09
24.8° 15.3°
09-10
24.4° 13.4°
09-11
21.2° 14.6°
0.13 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Redwood City?

38
Redwood City, San Mateo, California
2.9 km PM2.5: 9.1 µg/m³
50
Redwood City, San Mateo, California
2.9 km PM2.5: 12.0 µg/m³
19
Emerald Hills
4.4 km PM2.5: 4.6 µg/m³
12
Berkeley-Palo Alto
8.6 km PM2.5: 3.0 µg/m³
22
Acterra!
13.2 km PM2.5: 5.2 µg/m³
23
Belle Air School
21.4 km PM2.5: 5.6 µg/m³
26
Garden Ave Residence
21.5 km PM2.5: 6.3 µg/m³
26
Parkside Intermediate School
21.7 km PM2.5: 6.3 µg/m³
24
San Bruno School District Office
22.0 km PM2.5: 5.8 µg/m³
26
Pacific Ave Residence
23.3 km PM2.5: 6.3 µg/m³

What cities are near Redwood City?

30 San Carlos 28 Belmont 26 Menlo Park 16 East Palo Alto 27 Foster City 15 Palo Alto 26 San Mateo 20 Los Altos 25 Burlingame 20 Mountain View
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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 2026-09-05T15:08 UTC.