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Marseille air quality

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

43

Good

US AQI, mostly PM2.5

Great air. A perfect time to be outside.

Next 24 hours
33–50US AQI, highest around Sun 20:00
Best time outside
Sun 12:00–15:00US AQI about 33
PM2.5 vs WHO guideline
0.4×5.5 µg/m³ over 24 h, guideline 15
Cigarette equivalent
≈ 0.2 a dayBerkeley Earth rule of thumb
European AQI
Fairlevel 2 of 6

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

Pollutants in Marseille right now

PollutantNowNext 24 h vs WHOUS AQI band
Fine particles (PM2.5) 5.8 µg/m³ 0.4× Good
Coarse particles (PM10) 13 µg/m³ 0.3× Good
Nitrogen dioxide (NO2) 14 µg/m³ 0.3× Good
Ozone (O3) 57 µg/m³ 1.1× Good
Sulphur dioxide (SO2) 0.8 µg/m³ 0.0× Good
Carbon monoxide (CO) 182 µg/m³ 0.0× Good
Desert dust0 µg/m³
Smoke and haze (aerosol optical depth)0.17
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 50 around Sun 20:00, lowest 30 around Mon 09:00.

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

5-day air quality forecast for Marseille

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 33–50 Good 20:00 5.5 5.0
Mon 28 Sept 30–50 Good 20:00 5.2 4.8
Tue 29 Sept 30–46 Good 20:00 5.7 3.9
Wed 30 Sept 41–58 Moderate 22:00 14 3.1
Thu 1 Oct 59–60 Moderate 1:00 14 2.4

Common questions about the air in Marseille

  1. Is the air in Marseille safe today?

    Yes. Right now the US AQI in Marseille is 43, which counts as good. Great air. A perfect time to be outside.

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

    Sun 12:00–15:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 33. The worst hour is around Sun 20:00, at 50.

  3. What is the main pollutant in Marseille?

    Fine particles (PM2.5). It drives the index right now, at 5.8 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.

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

    Within the guideline. Over the next 24 hours PM2.5 averages about 5.5 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. O3 is forecast above its guideline level.

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

    About 0.2 cigarettes. Over the next 24 hours PM2.5 averages about 5.5 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 Marseille improve this week?

    Tuesday looks cleanest. Its AQI peaks at 46, against 60 on Thursday, the worst day in the forecast.

Measured near Marseille

StationDistancePM2.5 µg/m³Measured
Unnamed sensor Sensor.Community, low-cost sensor 2.2 km 4.4 Sun 02:29
Unnamed sensor Sensor.Community, low-cost sensor 27 km 3.6 Sun 02:27
Unnamed sensor Sensor.Community, low-cost sensor 29 km 7.4 Sun 02:27

Air quality near Marseille

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 43.30°N, 5.37°E, updated 2026-09-27 00:00 UTC.