Lisbon: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

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Latest air quality data: Lisbon

Locations: Lisbon Porto » Braga » Setúbal » Coimbra » Funchal Municipality »

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

particulate matter (PM2.5) dust - 5 (Good)
particulate matter (PM10) suspended dust - 13 (Good)
ozone (O3) - 56 (Good)
nitrogen dioxide (NO2) - 9 (Good)
sulfur dioxide (SO2) - 2 (Good)
carbon monoxide (CO) - 167 (Good)

Real-time Air Quality Index (AQI) for Lisbon, Thursday, August 27, 2026: 1.

AQI 1 Good

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

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Lisbon.

What is the current level of PM2.5 in Lisbon? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 5 (Good) For comparison, the highest level of PM2.5 in Lisbon in the last 7 days was: 9 (Tuesday, August 25, 2026) and the lowest: 5 (Thursday, August 27, 2026).

What is the level of PM10 today in Lisbon? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Lisbon is: 13 (Good) The highest PM10 values usually occur in month: 43 (October 2017). The lowest value of particulate matter PM10 pollution in Lisbon is usually recorded in: August (1).

How is the O3 level today in Lisbon? (ozone (O3))
56 (Good)

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

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

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

Current data Thursday, August 27, 2026 at 2:00 AM

PM2,5 5 (Good)

PM10 13 (Good)

O3 56 (Good)

NO2 9 (Good)

SO2 2 (Good)

CO 167 (Good)

Data on air pollution from recent days in Lisbon

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	5 Good	5 Good	9 Good	7 Good	5 Good	6 Good	6 Good	8 Good
pm10	12 Good	12 Good	19 Good	19 Good	11 Good	13 Good	14 Good	14 Good
o3	59 Good	65 Good	62 Good	70 Moderate	61 Good	69 Good	68 Good	54 Good
no2	9 Good	10 Good	18 Good	8 Good	10 Good	10 Good	6 Good	12 Good
so2	1 Good	2 Good	3 Good	1 Good	1 Good	2 Good	1 Good	2 Good
co	169 Good	155 Good	168 Good	144 Good	145 Good	162 Good	145 Good	136 Good

data source »

Air pollution in Lisbon 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	2017-10	2017-09
no2	15 (Good)	20 (Good)	36 (Good)	66 (Moderate)	53 (Moderate)	46 (Moderate)	42 (Moderate)	53 (Moderate)	58 (Moderate)	46 (Moderate)	41 (Moderate)	46 (Moderate)	59 (Moderate)	47 (Moderate)	59 (Moderate)	68 (Moderate)	63 (Moderate)	61 (Moderate)	49 (Moderate)	77 (Moderate)	78 (Moderate)	35 (Good)	43 (Moderate)	52 (Moderate)	57 (Moderate)	46 (Moderate)	39 (Good)	57 (Moderate)	62 (Moderate)	79 (Moderate)	86 (Moderate)
co	158 (Good)	184 (Good)	254 (Good)	395 (Good)	402 (Good)	301 (Good)	245 (Good)	249 (Good)	272 (Good)	234 (Good)	220 (Good)	205 (Good)	225 (Good)	241 (Good)	119 (Good)	401 (Good)	418 (Good)	421 (Good)	238 (Good)	383 (Good)	306 (Good)	212 (Good)	217 (Good)	214 (Good)	354 (Good)	266 (Good)	33 (Good)	2 (Good)	359 (Good)	405 (Good)	343 (Good)
pm10	19 (Good)	8.9 (Good)	18 (Good)	24 (Moderate)	25 (Moderate)	14 (Good)	1.7 (Good)	- (Good)	7.7 (Good)	1 (Good)	1.7 (Good)	2.6 (Good)	2.7 (Good)	- (Good)	- (Good)	5.7 (Good)	9.7 (Good)	16 (Good)	4.2 (Good)	5.7 (Good)	6.7 (Good)	3.7 (Good)	4.9 (Good)	7.5 (Good)	13 (Good)	13 (Good)	18 (Good)	25 (Moderate)	26 (Moderate)	43 (Moderate)	29 (Moderate)

data source »

Quality of life in Lisbon

Green and Parks in the City

Lisbon 68%

Morocco: 41% Andorra: 69% Spain: 70% France: 61%

particulate matter PM2.5

Lisbon 12 (Good)

Pleasure of spending time in the city

Lisbon 78%

Morocco: 41% Andorra: 84% Spain: 76% France: 68%

particulate matter PM10

Lisbon 26 (Moderate)

Air Pollution

Lisbon 34%

Morocco: 63% Andorra: 29% Spain: 30% France: 36%

Garbage Disposal

Lisbon 66%

Morocco: 33% Andorra: 89% Spain: 73% France: 59%

Availability and quality of drinking water

Lisbon 85%

Morocco: 55% Andorra: 100% Spain: 74% France: 73%

Cleanliness and tidiness

Lisbon 59%

Morocco: 39% Andorra: 75% Spain: 66% France: 48%

Noise and Light pollution

Lisbon 38%

Morocco: 55% Andorra: 29% Spain: 46% France: 54%

Water Pollution

Lisbon 24%

Morocco: 54% Andorra: 19% Spain: 29% France: 39%

Source: Numbeo

Lisbon

Thursday, August 27, 2026 at 2:00 AM

PM2,5 5.2 (Good)

particulate matter (PM2.5) dust

PM10 13 (Good)

particulate matter (PM10) suspended dust

O3 56 (Good)

ozone (O3)

NO2 9.1 (Good)

nitrogen dioxide (NO2)

SO2 1.6 (Good)

sulfur dioxide (SO2)

CO 167 (Good)

carbon monoxide (CO)

Lisbon

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	8.1	5.6	6	5.3	6.9	8.9	5.3	4.8
pm10	14	14	13	11	19	19	12	12
o3	54	68	69	61	70	62	65	59
no2	12	6.2	10	9.6	7.5	18	10	8.8
so2	2.1	1.1	1.8	1.4	1.2	2.9	1.6	1.4
co	136	145	162	145	144	168	155	169

PT03075

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	2017-10	2017-09
co	158	184	254	395	402	301	245	249	272	234	220	205	225	241	119	401	418	421	238	383	306	212	217	214	354	266	33	2	359	405	343
no2	15	20	36	66	53	46	42	53	58	46	41	46	59	47	59	68	63	61	49	77	78	35	43	52	57	46	39	57	62	79	86
pm10	19	8.9	18	24	25	14	1.7	-	7.7	1	1.7	2.6	2.7	-	-	5.7	9.7	16	4.2	5.7	6.7	3.7	4.9	7.5	13	13	18	25	26	43	29

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

🌦️ Weather · 16-day Forecast — Lisbon

16-day weather forecast for Lisbon: today around 25°C (rain), lows near 21°C. Daily temperature and conditions, updated every day. Strong wind (about 30 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Lisbon

The UV index in Lisbon today is 6.8 (high) — unprotected fair skin can burn in about 30 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Lisbon — compare nearby locations.

Porto 5 µg/m³
Braga 6 µg/m³
Setúbal 5 µg/m³
Coimbra 4 µg/m³
Funchal Municipality 4 µg/m³

Frequently asked questions

Is the air safe to breathe in Lisbon today?

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

What is the current PM2.5 level in Lisbon?

Right now PM2.5 in Lisbon averages about 5 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 Lisbon?

Over the past week, the highest daily PM2.5 in Lisbon was recorded on Tuesday, August 25 (about 9 µg/m³).

What is the UV index in Lisbon today?

The UV index in Lisbon today is 6.8 (high) — unprotected fair skin can burn in about 30 minutes.

Does today's wind help disperse smog in Lisbon?

Strong wind (about 30 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.