Air Quality in San Juan, United States

Windy
24.8°C · 53.0% humidity
24.8°
Feels 24.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
14 8pm
12
24
12 11pm
12
12
12 2am
12
12
12 5am
12
12
12 8am
12
12
12 11am
12
24
24 2pm
24
12
12 5pm
12
24
Station readings
14
CAMS model adj -13
25
25
37
25
25
25
25
25
25
25
25
25
25
25
25
25
25
37
37
37
25
25
25
37
AD 728×90

PM2.5 Trend (24h)

17h · 1 station
53.0%
Humidity
86.8 km/h
Wind SE
1014.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.53.3 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
3.3
Median
3.3
Average
3.3
Low
3.3
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +4.1
04-09
25.7° 19.5°
04-10
29.1° 19.7°
0.13 mm
04-11
25.7° 20.3°
0.13 mm
04-12
29.7° 20.3°
0.13 mm
04-13
30.2° 21.1°
04-14
32.0° 21.0°
04-15
32.1° 23.2°

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T23:15 UTC.