Air Quality in San Marcos, Guatemala

Rain
16.4°C · 96.2% humidity
16.4°
Feels 16.4°
75
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 6pm
83
84
75 9pm
140
141
81 12am
82
82
82 3am
82
82
83 6am
83
66
54 9am
54
54
54 12pm
3pm
AD 728×90

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.

96.2%
Humidity
30.7 km/h
Wind NE
1014.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
75
23.6 µg/m³
PM10
63
79.9 µg/m³
050100150200300500

Temperature & Precipitation

PM2.523.6 µg/m³ ×1.6 WHO
Moderate
PM1079.9 µg/m³
Moderate
UV INDEX0.7
Low
AD 300×250
07-22
20.7° 15.7°
20.31 mm
07-23
22.5° 15.2°
10.56 mm
07-24
23.6° 15.3°
9.0 mm
07-25
22.9° 16.6°
14.56 mm
07-26
24.0° 15.5°
14.81 mm
07-27
21.0° 15.2°
13.56 mm
07-28
24.2° 16.6°
13.06 mm
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T03:40 UTC.