Air Quality in Koper, Slovenia

Drizzle
18.2°C · 86.1% humidity
18.2°
Feels 18.2°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
40 12am
40
40
42 3am
39
38
36 6am
35
33
32 9am
32
32
31 12pm
31
31
30 3pm
30
30
30 6pm
31
31
31 9pm
31
33
Station readings
39
31
37
42
CAMS model adj +6
34
34
34
27
27
27
27
27
25
25
25
25
25
25
25
24
24
24
24
25
25
25
25
27
AD 728×90

Air Quality Index Trend

10h · 1 stn

Koper'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.

86.1%
Humidity
25.9 km/h
Wind ENE
1013.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
42
10.1 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

10h · 1 station
PM2.510.1 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
10.1
Median
10.1
Average
10.1
Low
10.1
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -4.0
07-22
27.0° 18.2°
4.31 mm
07-23
28.4° 23.0°
07-24
26.9° 18.5°
0.06 mm
07-25
29.3° 18.3°
0.88 mm
07-26
30.5° 19.6°
1.0 mm
07-27
38.5° 23.8°
07-28
35.3° 18.1°
1.06 mm
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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 2026-07-22T01:43 UTC.