Air Quality in Koper, Slovenia
Clear
26.8°C · 44.1% humidity
26.8°
Feels 26.8°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Koper's air quality — share it
AQI Forecast
Calibrated
47
2am
47
47
47
5am
47
47
47
8am
47
47
47
11am
47
47
47
2pm
49
49
49
5pm
49
49
49
8pm
49
49
49
11pm
49
49
Station readings
50
49
51
CAMS model
adj +22
25
25
25
25
25
25
25
25
25
25
25
25
25
27
27
27
27
27
27
27
27
27
27
27
Air Quality Index Trend
29h · 1 stnKoper'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.
44.1%
Humidity
10.4 km/h
Wind NE
1012.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.3 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Koper?
Temperature & Precipitation
PM2.5 Trend
29h · 1 stationPM2.511.3 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
11.3
Median
11.3
Average
11.3
Low
11.3
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -5.1
What is the 7-day forecast for Koper?
08-03
37.1° 25.2°
08-04
33.9° 21.8°
08-05
35.4° 18.4°
08-06
32.4° 25.2°
08-07
40.2° 26.6°
08-08
30.2° 22.4°
0.13 mm
08-09
32.4° 22.3°
Both models agree
Avg diff: 2.5°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 2026-08-08T03:45 UTC.