What is the air quality in San Lorenzo today?

The current Air Quality Index (AQI) in San Lorenzo is 20 (Good). PM2.5 concentration is 4.7 µg/m³.

What is the temperature in San Lorenzo right now?

The current temperature in San Lorenzo is 24.9°C (feels like 24.9°C). Humidity is 26.2% and wind speed is 18.0 km/h.

Is it safe to go outside in San Lorenzo?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Lorenzo, United States

Clear

24.9°C · 26.2% humidity

24.9°

Feels 24.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

79 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 114 stn

View full history →

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.

26.2%

Humidity

18.0 km/h

Wind WSW

1018.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.7 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Lorenzo?

Temperature & Precipitation

PM2.5 Trend

46h · 114 stations

PM2.54.7 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (79 stations within 25 km)

4.7

Median

4.63

Average

2.99

Low

11.0

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.1

What is the 7-day forecast for San Lorenzo?

10-20

26.0° 11.4°

10-21

25.9° 12.4°

10-22

29.9° 12.7°

10-23

23.5° 13.0°

10-24

26.2° 11.7°

10-25

25.3° 12.0°

1.5 mm

10-26

25.0° 12.2°

Both models agree Avg diff: 5.1°C

Where are air quality stations near San Lorenzo?

Madison Park Academy HS

7.1 km PM2.5: 4.5 µg/m³

Esperanza ES

7.8 km PM2.5: 4.5 µg/m³

Lifers 98th

8.3 km PM2.5: 6.1 µg/m³

Oakland - East, Alameda, California

8.3 km PM2.5: 6.0 µg/m³

Oakland - East, Alameda, California

8.3 km PM2.5: 11.0 µg/m³

Brookfield ES

8.4 km PM2.5: 4.7 µg/m³

Elmhurst United MS

8.5 km PM2.5: 4.0 µg/m³

Reach Academy ES

8.5 km PM2.5: 3.0 µg/m³

Grass Valley ES

8.8 km PM2.5: 4.1 µg/m³

Highland Community ES

9.5 km PM2.5: 4.4 µg/m³

What cities are near San Lorenzo?

20 Hayward 19 Castro Valley 20 San Leandro 20 Alameda 20 Foster City 18 Moraga 19 San Ramon 20 Oakland 20 San Mateo 22 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 2026-10-20T20:58 UTC.