Air Quality in San Marcos, Guatemala
Heavy Rain
16.4°C · 98.2% humidity
16.4°
Feels 16.4°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
San Marcos's air quality — share it
AQI Forecast
34
1pm
27
34
45
4pm
42
60
87
7pm
87
86
85
10pm
85
84
67
1am
66
66
54
4am
54
54
83
7am
66
54
34
10am
27
27
San Marcos's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
98.2%
Humidity
16.4 km/h
Wind NE
1013.7 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.85 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for San Marcos?
Temperature & Precipitation
PM2.510.85 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for San Marcos?
09-05
19.6° 15.6°
14.5 mm
09-06
23.5° 16.4°
54.44 mm
09-07
25.1° 16.1°
19.44 mm
09-08
21.0° 15.2°
16.44 mm
09-09
21.7° 16.1°
5.75 mm
09-10
24.5° 16.3°
31.13 mm
09-11
22.9° 15.7°
36.44 mm
Both models agree
Avg diff: 3.4°C
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T22:41 UTC.