Air Quality in Kyustendil, Bulgaria
Heavy Rain
8.1°C · 89.0% humidity
8.1°
Feels 6.2°
70
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations
Nearby Monitoring Stations
AQI Forecast
72
6am
76
61
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Station readings
72
76
61
Air Quality Index Trend
47h · 5 stnKyustendil's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level. Current PM2.5 concentration in Kyustendil is 1.4× the WHO 24-hour guideline of 15 µg/m³.
89.0%
Humidity
10.9 km/h
Wind S
1014.0 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
20.9 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Kyustendil?
Temperature & Precipitation
PM2.5 Trend
47h · 5 stationsPM2.520.9 µg/m³
×1.4 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (5 stations within 25 km)
20.9
Median
28.0
Average
6.67
Low
74.67
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -7.4
What is the 7-day forecast for Kyustendil?
10-21
15.8° 7.0°
19.38 mm
10-22
12.6° 6.8°
0.13 mm
10-23
20.0° 6.6°
10-24
9.3° 1.6°
10-25
11.1° 1.2°
10-26
14.7° 3.8°
3.94 mm
10-27
8.6° 7.0°
1.31 mm
Both models agree
Avg diff: 2.8°C
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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 2026-10-21T06:25 UTC.