Air Quality in Sofia, Bulgaria

Cloudy
17.9°C · 70.6% humidity
17.9°
Feels 17.9°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
32 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
27 10pm
33
39
35 1am
32
32
32 4am
32
32
32 7am
32
32
32 10am
32
32
31 1pm
31
31
31 4pm
31
31
31 7pm
31
32
Station readings
27
33
39
36
CAMS model adj +7
27
27
25
25
25
25
25
25
25
25
25
25
25
25
25
24
24
24
24
24
24
24
24
25
AD 728×90

Air Quality Index Trend

48h · 27 stn

Sofia'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.

70.6%
Humidity
20.4 km/h
Wind W
1014.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
35
8.54 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 27 stations
PM2.58.54 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
8.54
Median
9.0
Average
1.0
Low
50.67
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -2.5
07-21
34.8° 16.0°
1.13 mm
07-22
28.8° 17.9°
2.38 mm
07-23
27.4° 20.2°
3.69 mm
07-24
26.5° 16.8°
07-25
24.7° 17.4°
0.44 mm
07-26
27.6° 15.3°
12.56 mm
07-27
35.9° 22.7°
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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 2026-07-21T22:50 UTC.