Air Quality in Pacifica, United States

Windy
17.8°C · 68.3% humidity
17.8°
Feels 17.8°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
28 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
8 3pm
15
15
18 6pm
15
15
15 9pm
15
15
15 12am
15
15
15 3am
15
15
8 6am
8
8
8 9am
8
8
8 12pm
8
8
Station readings
11
5
5
CAMS model adj -19
27
34
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
27
27
27
27
27
27
AD 728×90

Air Quality Index Trend

42h · 1 stn

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

68.3%
Humidity
69.2 km/h
Wind WSW
1007.6 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
18
4.39 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Pacifica?

Temperature & Precipitation

PM2.5 Trend

42h · 1 station
PM2.54.39 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (28 stations within 25 km)
4.39
Median
4.81
Average
1.08
Low
7.2
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +3.0

What is the 7-day forecast for Pacifica?

07-22
17.8° 14.3°
07-23
17.5° 16.8°
0.06 mm
07-24
19.4° 13.8°
07-25
16.2° 14.6°
07-26
19.0° 13.5°
0.06 mm
07-27
18.5° 14.0°
07-28
18.0° 13.8°
0.31 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Pacifica?

17
Portola Elementary
3.2 km PM2.5: 4.0 µg/m³
16
Rollingwood Elementary
4.3 km PM2.5: 3.9 µg/m³
18
Brentwood Park
5.5 km PM2.5: 4.2 µg/m³
21
Clay Ave Park
5.7 km PM2.5: 5.0 µg/m³
23
Buri Buri Park
5.9 km PM2.5: 5.4 µg/m³
15
Parkside Intermediate School
6.0 km PM2.5: 3.5 µg/m³
28
Parkside Intermediate School (redeployment)
6.0 km PM2.5: 6.6 µg/m³
15
San Bruno School District Office
6.3 km PM2.5: 3.6 µg/m³
19
Garden Ave Residence
6.9 km PM2.5: 4.5 µg/m³
23
Pacific Ave Residence
6.9 km PM2.5: 5.5 µg/m³

What cities are near Pacifica?

18 San Bruno 21 South San Francisco 18 Millbrae 21 Daly City 19 Burlingame 23 Visitacion Valley 18 Parkside 21 San Mateo 23 Bayview-Hunters Point 23 Noe Valley
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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 2026-07-22T01:42 UTC.