Is the air in Algiers safe today?

Yes. Right now the US AQI in Algiers is 31, which counts as good. Great air. A perfect time to be outside.

When is the best time to be outside in Algiers?

Sat 06:00–9:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 24. The worst hour is around Sat 00:00, at 37.

What is the main pollutant in Algiers?

Ozone (O3). It drives the index right now, at 67 µg/m³. Formed by sunlight acting on traffic and plant emissions. Highest on hot, still afternoons, often downwind of cities.

How does Algiers's air compare with the WHO guideline?

Within the guideline. Over the next 24 hours PM2.5 averages about 5.1 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. The other pollutants stay within their guideline levels.

How many cigarettes is a day of Algiers's air?

About 0.2 cigarettes. Over the next 24 hours PM2.5 averages about 5.1 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.

Will air quality in Algiers improve this week?

Today looks cleanest. Its AQI peaks at 36, against 59 on Tuesday, the worst day in the forecast.

Algiers air quality

Algeria · Live AQI and hourly forecast for the next 5 days · valid Fri 18:00 local time

Good

US AQI, mostly O₃

Model estimate. Nearby measurements are shown separately.

Great air. A perfect time to be outside.

Next 24 hours: 23–37US AQI, highest around Sat 00:00
Best time outside: Sat 06:00–9:00US AQI about 24
PM_2.5 vs WHO guideline: 0.3×5.1 µg/m³ over 24 h, guideline 15
Cigarette equivalent: ≈ 0.2 a dayBerkeley Earth rule of thumb

Loading the live globe…

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

Pollutants in Algiers right now

Pollutant	Now	Level	Next 24 h vs WHO
Fine particles PM_2.5	5.4 µg/m³	Good	0.3×
Coarse particles PM₁₀	13 µg/m³	Good	0.2×
Nitrogen dioxide NO₂	9.8 µg/m³	Good	0.5×
Ozone O₃	67 µg/m³	Good	0.7×
Sulphur dioxide SO₂	2.8 µg/m³	Good	0.1×
Carbon monoxide CO	140 µg/m³	Good	0.0×
Aerosol optical depth	0.08	Whole atmosphere · dimensionless
Desert dust	0 µg/m³	Modelled surface dust
UV index	0	Low

“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 PM_2.5, 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. Levels follow the US AQI, which is far less strict than the WHO, so air rated Good can still be above a guideline.

Next 48 hours

Hourly US AQI. Highest 56 around Sun 00:00, lowest 23 around Sat 08:00.

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

5-day air quality forecast for Algiers

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

Day	US AQI	At worst	Worst hour	PM_2.5 avg	UV max
Fri 13 Nov	27–36	Good	14:00	4.6	3 Moderate
Sat 14 Nov	23–55	Moderate	23:00	5.8	3 Moderate
Sun 15 Nov	24–56	Moderate	0:00	6.5	3 Moderate
Mon 16 Nov	28–55	Moderate	23:00	7.0	2 Low
Tue 17 Nov	30–59	Moderate	0:00	6.8	3 Moderate

Common questions about the air in Algiers

Is the air in Algiers safe today?
Yes. Right now the US AQI in Algiers is 31, which counts as good. Great air. A perfect time to be outside.
When is the best time to be outside in Algiers?
Sat 06:00–9:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 24. The worst hour is around Sat 00:00, at 37.
What is the main pollutant in Algiers?
Ozone (O₃). It drives the index right now, at 67 µg/m³. Formed by sunlight acting on traffic and plant emissions. Highest on hot, still afternoons, often downwind of cities.
How does Algiers's air compare with the WHO guideline?
Within the guideline. Over the next 24 hours PM_2.5 averages about 5.1 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. The other pollutants stay within their guideline levels.
How many cigarettes is a day of Algiers's air?
About 0.2 cigarettes. Over the next 24 hours PM_2.5 averages about 5.1 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.
Will air quality in Algiers improve this week?
Today looks cleanest. Its AQI peaks at 36, against 59 on Tuesday, the worst day in the forecast.

Air quality near Algiers

US AQI right now. Cleanest nearby: Madrid (27); worst: Marseille (46). The tick on each bar is Algiers, at 31.

Barcelona 521 km N 45 Good
Madrid 715 km NW 27 Good
Marseille 754 km N 46 Good
Rome 992 km NE 44 Good
Lyon 1,013 km N 40 Good
Casablanca 1,030 km W 42 Good

All 162 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 (about 10 km inside Europe). Global runs update every 12 hours and European runs every 24 hours. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown. Nearby station measurements are independent observations, not adjustments to the forecast. The point forecast uses Open-Meteo’s CAMS products, including a separate carbon monoxide product; it can differ from the globe’s global grid. The AQI rates each hour on the US EPA scale, the same way the map colors it; official daily figures average over 24 hours (8 for ozone), so they can read lower after a short peak. Readings for 36.75°N, 3.06°E, valid 2026-11-13 17:00 UTC.