Air Quality in Sliven, Bulgaria
Cloudy
17.5°C · 88.4% humidity
17.5°
Feels 17.5°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Sliven's air quality — share it
AQI Forecast
Calibrated
38
10pm
38
38
28
1am
31
35
36
4am
37
38
37
7am
37
37
37
10am
37
37
37
1pm
37
37
38
4pm
38
38
38
7pm
38
38
Station readings
33
42
42
38
CAMS model
adj +13
25
25
25
25
25
27
27
27
27
25
25
25
24
24
24
24
24
24
25
25
25
25
25
25
Air Quality Index Trend
48h · 1 stnSliven'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.
88.4%
Humidity
33.8 km/h
Wind NNW
1012.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.67 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Sliven?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.56.67 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
6.67
Median
7.33
Average
5.0
Low
9.67
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -0.4
What is the 7-day forecast for Sliven?
07-21
29.5° 17.6°
6.81 mm
07-22
28.8° 17.5°
07-23
27.2° 20.8°
0.62 mm
07-24
28.1° 16.6°
07-25
26.8° 14.8°
2.5 mm
07-26
23.7° 16.6°
1.37 mm
07-27
32.2° 19.8°
Both models agree
Avg diff: 4.7°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 2026-07-21T22:57 UTC.