Air Quality in San Lorenzo, United States

Clear
30.4°C · 47.1% humidity
30.4°
Feels 33.2°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
82 stations

Nearby Monitoring Stations

AQI Forecast
34 9am
27
27
27 12pm
34
34
34 3pm
34
34
34 6pm
27
27
34 9pm
34
34
27 12am
34
34
27 3am
27
27
34 6am
34
34
AD 728×90

Air Quality Index Trend

45h · 107 stn

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

47.1%
Humidity
36.8 km/h
Wind W
1016.0 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
27
6.4 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Lorenzo?

Temperature & Precipitation

PM2.5 Trend

45h · 107 stations
PM2.56.4 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (82 stations within 25 km)
6.4
Median
6.42
Average
2.7
Low
30.2
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -0.2

What is the 7-day forecast for San Lorenzo?

09-05
30.8° 14.0°
09-06
33.4° 14.4°
09-07
35.8° 10.2°
09-08
34.1° 12.1°
09-09
29.0° 15.2°
09-10
30.2° 12.7°
09-11
26.8° 15.6°
0.19 mm
Both models agree Avg diff: 4.5°C

Where are air quality stations near San Lorenzo?

23
Madison Park Academy HS
7.1 km PM2.5: 5.5 µg/m³
25
Lifers 105th
7.3 km PM2.5: 6.1 µg/m³
26
Esperanza ES
7.8 km PM2.5: 6.2 µg/m³
55
Lifers 98th
8.3 km PM2.5: 13.8 µg/m³
25
Oakland - East, Alameda, California
8.3 km PM2.5: 6.0 µg/m³
27
Brookfield ES
8.4 km PM2.5: 6.4 µg/m³
20
Elmhurst United MS
8.5 km PM2.5: 4.8 µg/m³
24
Reach Academy ES
8.5 km PM2.5: 5.8 µg/m³
27
Grass Valley ES
8.8 km PM2.5: 6.5 µg/m³
25
Highland Community ES
9.5 km PM2.5: 5.9 µg/m³

What cities are near San Lorenzo?

27 Hayward 26 Castro Valley 27 San Leandro 27 Alameda 27 Foster City 26 Moraga 26 San Ramon 30 Oakland 26 San Mateo 28 Belmont
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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 2026-09-05T19:34 UTC.