What is the air quality in Koper today?

The current Air Quality Index (AQI) in Koper is 34 (Good). PM2.5 concentration is 8.05 µg/m³.

What is the temperature in Koper right now?

The current temperature in Koper is 14.4°C (feels like 14.4°C). Humidity is 68.3% and wind speed is 34.4 km/h.

Is it safe to go outside in Koper?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Koper, Slovenia

Drizzle

14.4°C · 68.3% humidity

14.4°

Feels 14.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

43h · 1 stn

View full history →

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.

68.3%

Humidity

34.4 km/h

Wind NE

1018.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.05 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Koper?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station

PM2.58.05 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

8.05

Median

8.05

Average

7.9

Low

8.2

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -2.0

What is the 7-day forecast for Koper?

10-21

14.4° 4.1°

0.5 mm

10-22

19.5° 8.1°

0.19 mm

10-23

18.5° 7.2°

7.81 mm

10-24

13.4° 5.5°

0.06 mm

10-25

16.7° 7.8°

0.13 mm

10-26

13.5° 7.1°

7.88 mm

10-27

16.8° 6.9°

47.81 mm

Both models agree Avg diff: 3.4°C

Where are air quality stations near Koper?

Koper, Slovenia

1.4 km PM2.5: 8.2 µg/m³

Koper, Slovenia

1.4 km PM2.5: 7.9 µg/m³

What cities are near Koper?

34 Trieste 23 Monfalcone 23 Gorizia 20 Rijeka 23 Udine 63 Portogruaro 30 Pula 48 Ljubljana 46 Kranj 64 San Donà di Piave

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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 2026-10-21T12:31 UTC.