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Copenhagen air quality

Denmark · Live AQI and hourly forecast for the next 5 days · updated Sun 02:00 local time

42

Good

US AQI, mostly PM2.5

Great air. A perfect time to be outside.

Next 24 hours
29–42US AQI, highest around Sun 02:00
Best time outside
Sun 11:00–14:00US AQI about 29
PM2.5 vs WHO guideline
0.4×5.6 µg/m³ over 24 h, guideline 15
Cigarette equivalent
≈ 0.3 a dayBerkeley Earth rule of thumb
European AQI
Fairlevel 2 of 6

Loading the live globe…

The live globe, centred on Copenhagen. Switch pollutants, drag through the next 5 days or press play. Full map →

Pollutants in Copenhagen right now

PollutantNowNext 24 h vs WHOUS AQI band
Fine particles (PM2.5) 6.7 µg/m³ 0.4× Good
Coarse particles (PM10) 11 µg/m³ 0.2× Good
Nitrogen dioxide (NO2) 10 µg/m³ 0.3× Good
Ozone (O3) 45 µg/m³ 0.8× Good
Sulphur dioxide (SO2) 0.6 µg/m³ 0.0× Good
Carbon monoxide (CO) 200 µg/m³ 0.0× Good
Desert dust0 µg/m³
Smoke and haze (aerosol optical depth)0.07
UV index0.0

“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM2.5, 45 for PM10, 25 for NO2, 40 for SO2 and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline.

Next 48 hours

Hourly US AQI. Highest 55 around Tue 01:00, lowest 29 around Sun 11:00.

Good 0–50Moderate 51–100Sensitive 101–150Unhealthy 151–200Very unhealthy 201–300Hazardous 301+

5-day air quality forecast for Copenhagen

Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 150.

DayUS AQIAt worstWorst hourPM2.5 avgUV max
Sun 27 Sept 29–42 Good 0:00 5.4 2.4
Mon 28 Sept 34–53 Moderate 22:00 11 1.8
Tue 29 Sept 54–69 Moderate 19:00 18 1.6
Wed 30 Sept 51–67 Moderate 0:00 9.3 2.4
Thu 1 Oct 51–51 Moderate 0:00 9.4 2.1

Common questions about the air in Copenhagen

  1. Is the air in Copenhagen safe today?

    Yes. Right now the US AQI in Copenhagen is 42, which counts as good. Great air. A perfect time to be outside.

  2. When is the best time to be outside in Copenhagen?

    Sun 11:00–14:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 29. The worst hour is around Sun 02:00, at 42.

  3. What is the main pollutant in Copenhagen?

    Fine particles (PM2.5). It drives the index right now, at 6.7 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.

  4. How does Copenhagen's air compare with the WHO guideline?

    Within the guideline. Over the next 24 hours PM2.5 averages about 5.6 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. The other pollutants stay within their guideline levels.

  5. How many cigarettes is a day of Copenhagen's air?

    About 0.3 cigarettes. Over the next 24 hours PM2.5 averages about 5.6 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.

  6. Will air quality in Copenhagen improve this week?

    Today looks cleanest. Its AQI peaks at 42, against 69 on Tuesday, the worst day in the forecast.

Measured near Copenhagen

StationDistancePM2.5 µg/m³Measured
Unnamed sensor Sensor.Community, low-cost sensor 15 km 3.0 Sun 02:39
Unnamed sensor Sensor.Community, low-cost sensor 20 km 0.9 Sun 02:38
Unnamed sensor Sensor.Community, low-cost sensor 33 km 2.8 Sun 02:38

Air quality near Copenhagen

All 161 cities

About this forecast

Forecast from CAMS Europe and global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (10 km inside Europe), refreshed twice a day. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown; ground stations, where there are any nearby, show what monitors actually measure. The US AQI follows the US EPA scale and the European AQI the EEA bands. Readings for 55.68°N, 12.57°E, updated 2026-09-27 00:00 UTC.