Air Quality in San Marino, SM

Drizzle
12.8°C · 79.5% humidity
12.8°
Feels 12.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
28 3pm
11
15
15 6pm
22
22
22 9pm
22
22
22 12am
22
22
22 3am
22
22
22 6am
22
22
60 9am
35
35
35 12pm
35
35
Station readings
28
11
15
15
CAMS model adj -15
37
37
37
37
37
37
37
37
37
37
37
37
37
37
37
37
37
37
75
50
50
50
50
50
AD 728×90

PM2.5 Trend (24h)

25h · 2 stations
79.5%
Humidity
28.8 km/h
Wind SE
1004.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.53.42 µg/m³ ✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
04-09
14.0° 10.3°
0.75 mm
04-10
13.1° 10.7°
5.44 mm
04-11
8.1° 6.8°
1.88 mm
04-12
10.4° 5.6°
04-13
12.2° 4.2°
04-14
10.2° 6.9°
9.56 mm
04-15
11.3° 7.6°
0.44 mm

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:40 UTC.