Smog in Lyon — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

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Latest air quality data: Lyon

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Pollution and air quality forecast for Lyon. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Lyon:

particulate matter (PM2.5) dust - 6 (Good)
particulate matter (PM10) suspended dust - 13 (Good)
ozone (O3) - 81 (Moderate)
nitrogen dioxide (NO2) - 3 (Good)
sulfur dioxide (SO2) - 1 (Good)
carbon monoxide (CO) - 128 (Good)

Real-time Air Quality Index (AQI) for Lyon, Thursday, August 27, 2026: 2.

AQI 2 Moderate

What is the air quality in Lyon today? Is the air polluted in Lyon?. Is there smog?

Today (Thursday, August 27, 2026) air quality is moderate in Lyon. Some pollutants in Lyon may slightly affect very few hypersensitive individuals. Air pollutants in Lyon may cause minor breathing discomfort to sensitive people.

What is the current level of PM2.5 in Lyon? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 6 (Good) For comparison, the highest level of PM2.5 in Lyon in the last 7 days was: 10 (Thursday, August 27, 2026) and the lowest: 4 (Sunday, August 23, 2026).

What is the level of PM10 today in Lyon? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Lyon is: 13 (Good) The highest PM10 values usually occur in month: 61 (November 2019). The lowest value of particulate matter PM10 pollution in Lyon is usually recorded in: May (6.1).

How is the O3 level today in Lyon? (ozone (O3))
81 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
3 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)

How high is the CO level? (carbon monoxide (CO))
128 (Good)

Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 6 (Good)

PM10 13 (Good)

O3 81 (Moderate)

NO2 3 (Good)

SO2 1 (Good)

CO 128 (Good)

Data on air pollution from recent days in Lyon

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	10 Good	6 Good	5 Good	6 Good	4 Good	4 Good	5 Good	6 Good
pm10	25 Moderate	9 Good	8 Good	9 Good	6 Good	7 Good	7 Good	10 Good
o3	78 Moderate	65 Good	74 Moderate	69 Good	62 Good	53 Good	57 Good	55 Good
no2	7 Good	12 Good	10 Good	10 Good	7 Good	8 Good	11 Good	11 Good
so2	2 Good	1 Good	2 Good	1 Good	1 Good	1 Good	1 Good	2 Good
co	146 Good	176 Good	170 Good	186 Good	167 Good	169 Good	167 Good	170 Good

data source »

Air pollution in Lyon from September 2017 to May 2020

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09
pm10	6.1 (Good)	17 (Good)	30 (Moderate)	24 (Moderate)	26 (Moderate)	19 (Good)	61 (Unhealthy for Sensitive Groups)	12 (Good)	38 (Moderate)	15 (Good)	18 (Good)	15 (Good)	9.5 (Good)	14 (Good)	16 (Good)	31 (Moderate)	19 (Good)	20 (Moderate)	19 (Good)	22 (Moderate)	19 (Good)	17 (Good)	20 (Good)	18 (Good)	19 (Good)	16 (Good)	15 (Good)	21 (Moderate)	16 (Good)	15 (Good)	33 (Moderate)	28 (Moderate)	27 (Moderate)
no2	8.6 (Good)	13 (Good)	20 (Good)	35 (Good)	37 (Good)	36 (Good)	34 (Good)	26 (Good)	27 (Good)	24 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	39 (Good)	24 (Good)	21 (Good)	15 (Good)	18 (Good)	27 (Good)	31 (Good)	33 (Good)	33 (Good)	31 (Good)	37 (Good)	36 (Good)	38 (Good)
o3	50 (Good)	70 (Moderate)	51 (Good)	33 (Good)	24 (Good)	24 (Good)	20 (Good)	32 (Good)	43 (Good)	53 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	74 (Moderate)	73 (Moderate)	64 (Good)	65 (Good)	66 (Good)	41 (Good)	28 (Good)	26 (Good)	29 (Good)	26 (Good)	34 (Good)	34 (Good)

data source »

Lyon

Thursday, August 27, 2026 at 3:00 AM

PM2,5 5.9 (Good)

particulate matter (PM2.5) dust

PM10 13 (Good)

particulate matter (PM10) suspended dust

O3 81 (Moderate)

ozone (O3)

NO2 2.9 (Good)

nitrogen dioxide (NO2)

SO2 1.3 (Good)

sulfur dioxide (SO2)

CO 128 (Good)

carbon monoxide (CO)

Lyon

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	6.3	4.7	4	3.7	5.9	5.2	6.1	9.9
pm10	9.7	7.1	6.6	5.8	9	7.9	9.5	25
o3	55	57	53	62	69	74	65	78
no2	11	11	7.8	6.8	9.7	10	12	7.2
so2	1.7	1.1	0.68	0.58	1.3	2.4	1.3	1.6
co	170	167	169	167	186	170	176	146

FR20017

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09
pm10	6.1	17	30	24	26	19	61	12	38	15	18	15	9.5	14	16	31	19	20	19	22	19	17	20	18	19	16	15	21	16	15	33	28	27
no2	8.6	13	20	35	37	36	34	26	27	24	-	-	-	-	-	-	-	-	-	-	39	24	21	15	18	27	31	33	33	31	37	36	38
o3	50	70	51	33	24	24	20	32	43	53	-	-	-	-	-	-	-	-	-	-	-	74	73	64	65	66	41	28	26	29	26	34	34

* Pollution data source: https://openaq.org (EEA France) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — France

16-day weather forecast for France: today around 32°C (rain), lows near 16°C. Daily temperature and conditions, updated every day. Strong wind (about 24 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — France

The UV index in France today is 6 (high) — unprotected fair skin can burn in about 35 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Lyon — compare nearby locations.

Grenoble 9 µg/m³
LausanneSwitzerland 6 µg/m³
Dijon 6 µg/m³
Paris 4 µg/m³
Marseille 02 7 µg/m³
Toulouse 11 µg/m³
Nice 8 µg/m³
Nantes 4 µg/m³

Frequently asked questions

Is the air safe to breathe in Lyon today?

The current average PM2.5 across Lyon is about 6 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Lyon?

Right now PM2.5 in Lyon averages about 6 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Lyon?

Over the past week, the highest daily PM2.5 in Lyon was recorded on Thursday, August 27 (about 10 µg/m³).

What is the UV index in Lyon today?

The UV index in Lyon today is 6 (high) — unprotected fair skin can burn in about 35 minutes.

Does today's wind help disperse smog in Lyon?

Strong wind (about 24 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.