Air Quality in La Unión, Chile

Cloudy
9.2°C · 73.8% humidity
9.2°
Feels 7.7°
172
Unhealthy
Everyone should reduce prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast
25 10am
25
24
172 1pm
130
100
78 4pm
63
52
44 7pm
38
44
41 10pm
32
31
30 1am
29
28
28 4am
28
28
27 7am
27
24
AD 728×90

Air Quality Index Trend

36h · 1 stn

La Unión'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 La Unión is 6.4× the WHO 24-hour guideline of 15 µg/m³.

73.8%
Humidity
9.7 km/h
Wind SSW
1027.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
172
96.2 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for La Unión?

Temperature & Precipitation

PM2.5 Trend

36h · 1 station
PM2.596.2 µg/m³ ×6.4 WHO
Unhealthy
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
96.2
Median
96.2
Average
96.2
Low
96.2
High
PM2.5 µg/m³ · Model: 5.8 · Bias: -90.4

What is the 7-day forecast for La Unión?

07-21
9.2° 4.9°
3.69 mm
07-22
5.8° 0.8°
07-23
12.7° 0.2°
21.5 mm
07-24
10.3° 0.3°
11.56 mm
07-25
8.3° 0.6°
4.0 mm
07-26
12.8° -2.0°
23.37 mm
07-27
11.2° 4.9°
31.37 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near La Unión?

33
La Union, Chile
0.8 km PM2.5: 7.9 µg/m³
42
La Union, Chile
0.8 km PM2.5: 10.1 µg/m³

What cities are near La Unión?

172 Río Bueno 36 Paillaco 24 Osorno 24 Valdivia 24 Las Animas 25 Purranque 36 Panguipulli 142 Llanquihue 36 Loncoche 142 Puerto Varas
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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 2026-07-21T17:19 UTC.