Air Quality in San Leandro, United States

Rain
15.7°C · 67.5% humidity
15.7°
Feels 15.7°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
83 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
17 6pm
17
18
18 9pm
18
18
18 12am
18
18
18 3am
18
18
30 6am
43
43
68 9am
68
68
68 12pm
30
43
30 3pm
18
18
Station readings
17
17
CAMS model adj -7
25
25
25
25
25
25
25
25
25
25
25
25
37
50
50
75
75
75
75
37
50
37
25
25
AD 728×90

PM2.5 Trend (24h)

24h · 108 stations
67.5%
Humidity
37.6 km/h
Wind WNW
1009.7 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.54.11 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
4.11
Median
4.05
Average
2.14
Low
13.97
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +3.3
04-09
19.5° 11.9°
0.25 mm
04-10
17.6° 9.6°
3.94 mm
04-11
17.3° 8.9°
0.06 mm
04-12
12.5° 6.1°
2.25 mm
04-13
15.0° 3.9°
0.25 mm
04-14
18.4° 5.5°
04-15
21.2° 8.3°

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T21:07 UTC.