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Naples air quality

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

34

Good

US AQI, mostly O3

Great air. A perfect time to be outside.

Next 24 hours
28–43US AQI, highest around Sun 20:00
Best time outside
Sun 08:00–11:00US AQI about 29
PM2.5 vs WHO guideline
0.5×6.9 µg/m³ over 24 h, guideline 15
Cigarette equivalent
≈ 0.3 a dayBerkeley Earth rule of thumb
European AQI
Fairlevel 2 of 6

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

Pollutants in Naples right now

PollutantNowNext 24 h vs WHOUS AQI band
Fine particles (PM2.5) 4.8 µg/m³ 0.5× Good
Coarse particles (PM10) 8.8 µg/m³ 0.2× Good
Nitrogen dioxide (NO2) 12 µg/m³ 0.4× Good
Ozone (O3) 64 µg/m³ 0.9× Good
Sulphur dioxide (SO2) 0.9 µg/m³ 0.0× Good
Carbon monoxide (CO) 172 µg/m³ 0.0× Good
Desert dust0 µg/m³
Smoke and haze (aerosol optical depth)0.05
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 59 around Tue 00:00, lowest 28 around Sun 10:00.

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

5-day air quality forecast for Naples

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 28–43 Good 20:00 6.1 5.4
Mon 28 Sept 36–58 Moderate 21:00 14 5.5
Tue 29 Sept 59–61 Moderate 6:00 15 5.5
Wed 30 Sept 53–64 Moderate 19:00 11 5.3
Thu 1 Oct 52–54 Moderate 0:00 10 5.2

Common questions about the air in Naples

  1. Is the air in Naples safe today?

    Yes. Right now the US AQI in Naples is 34, which counts as good. Great air. A perfect time to be outside.

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

    Sun 08:00–11:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 29. The worst hour is around Sun 20:00, at 43.

  3. What is the main pollutant in Naples?

    Ozone (O3). It drives the index right now, at 64 µg/m³. Formed by sunlight acting on traffic and plant emissions. Highest on hot, still afternoons, often downwind of cities.

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

    Within the guideline. Over the next 24 hours PM2.5 averages about 6.9 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 Naples's air?

    About 0.3 cigarettes. Over the next 24 hours PM2.5 averages about 6.9 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 Naples improve this week?

    Today looks cleanest. Its AQI peaks at 43, against 64 on Wednesday, the worst day in the forecast.

Measured near Naples

StationDistancePM2.5 µg/m³Measured
Unnamed sensor Sensor.Community, low-cost sensor 11 km 2.4 Sun 02:29
Unnamed sensor Sensor.Community, low-cost sensor 12 km 2.4 Sun 02:27
Unnamed sensor Sensor.Community, low-cost sensor 13 km 3.1 Sun 02:28

Air quality near Naples

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 40.85°N, 14.27°E, updated 2026-09-27 00:00 UTC.