Air Quality in Santiago, Chile

Clear
18.8°C · 17.8% humidity
18.8°
Feels 18.8°
152
Unhealthy
Everyone should reduce prolonged outdoor exertion.
158 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
157 3pm
153
145
152 6pm
151
151
166 9pm
151
151
151 12am
151
151
89 3am
89
89
89 6am
89
89
151 9am
151
151
151 12pm
151
151
Station readings
157
153
145
152
CAMS model adj +5
146
146
146
146
146
146
161
146
146
146
146
146
84
84
84
84
84
84
146
146
146
146
146
146
AD 728×90

Air Quality Index Trend

48h · 85 stn

Santiago's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons. Current PM2.5 concentration in Santiago is 3.8× the WHO 24-hour guideline of 15 µg/m³.

17.8%
Humidity
19.6 km/h
Wind E
1013.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
152
57.13 µg/m³
PM10
126
204.9 µg/m³
050100150200300500

What is the weather forecast for Santiago?

Temperature & Precipitation

PM2.5 Trend

48h · 85 stations
PM2.557.13 µg/m³ ×3.8 WHO
Unhealthy
PM10204.9 µg/m³
Unhealthy for sensitive groups
UV INDEX0.7
Low
AD 300×250
Station readings (158 stations within 25 km)
57.13
Median
48.04
Average
8.9
Low
82.0
High
PM2.5 µg/m³ · Model: 76.82 · Bias: +19.7

What is the 7-day forecast for Santiago?

05-29
20.6° 12.7°
05-30
20.6° 18.0°
05-31
19.6° 15.0°
06-01
18.8° 13.8°
06-02
18.2° 10.3°
06-03
19.2° 9.1°
06-04
13.9° 9.8°
Both models agree Avg diff: 3.2°C

Where are air quality stations near Santiago?

155
CHS 56 H P1 13c1b1
0.9 km 22.0°C 45.0% RH PM2.5: 63.0 µg/m³
152
CHS 56 H S2 2755bd
0.9 km 0.0°C 0.0% RH PM2.5: 58.0 µg/m³
154
CHS 56 H P2 6813bb
0.9 km 15.0°C 59.0% RH PM2.5: 61.0 µg/m³
153
CHS 56 H S1 483da3
0.9 km 0.0°C 0.0% RH PM2.5: 59.0 µg/m³
55
Parque O'Higgins, Chile
1.4 km PM2.5: 14.0 µg/m³
147
CHS 64 H S1 6912be
1.5 km 0.0°C 0.0% RH PM2.5: 54.0 µg/m³
155
CHS 64 H P1 5ecc3a
1.5 km 19.0°C 54.0% RH PM2.5: 64.0 µg/m³
164
CHS 64 H P2 V2 68a975
1.5 km 21.0°C 48.0% RH PM2.5: 80.0 µg/m³
89
CHS 70 H P2 ef48f2
1.7 km 17.0°C 57.0% RH PM2.5: 30.0 µg/m³
115
CHS 70 H P1 a082ef
1.7 km 21.0°C 48.0% RH PM2.5: 41.0 µg/m³

What cities are near Santiago?

153 Ñuñoa 140 Lo Prado 139 Renca 155 Peñalolén 152 Quilicura 136 Maipú 107 La Pintana 112 San Bernardo 93 Puente Alto 134 Padre Hurtado
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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 2026-05-29T22:27 UTC.