Air Quality in San Marcos, Guatemala
Drizzle
17.1°C · 85.5% humidity
17.1°
Feels 17.1°
75
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
San Marcos's air quality — share it
AQI Forecast
54
7pm
54
66
75
10pm
72
59
57
1am
56
68
67
4am
67
67
83
7am
54
54
34
10am
27
27
27
1pm
34
34
34
4pm
54
54
San Marcos'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 San Marcos is 1.6× the WHO 24-hour guideline of 15 µg/m³.
85.5%
Humidity
31.3 km/h
Wind NE
1015.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
23.6 µg/m³
PM10
66.15 µg/m³
050100150200300500
What is the weather forecast for San Marcos?
Temperature & Precipitation
PM2.523.6 µg/m³
×1.6 WHO
Moderate
PM1066.15 µg/m³
Moderate
UV INDEX0.7
Low
What is the 7-day forecast for San Marcos?
06-09
25.0° 17.1°
4.13 mm
06-10
20.9° 17.8°
53.69 mm
06-11
17.5° 16.8°
52.0 mm
06-12
17.3° 16.5°
53.44 mm
06-13
21.6° 15.4°
18.0 mm
06-14
23.8° 15.8°
48.44 mm
06-15
22.5° 16.5°
16.31 mm
Both models agree
Avg diff: 4.4°C
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T04:47 UTC.