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

Latest air quality data: São Paulo

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

particulate matter (PM2.5) dust - 62 (Unhealthy)
particulate matter (PM10) suspended dust - 63 (Unhealthy for Sensitive Groups)
ozone (O3) - 0 (Good)
nitrogen dioxide (NO2) - 90 (Moderate)
sulfur dioxide (SO2) - 19 (Good)
carbon monoxide (CO) - 671 (Good)

Real-time Air Quality Index (AQI) for São Paulo, Wednesday, August 26, 2026: 4.

AQI 4 Unhealthy

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

Today (Wednesday, August 26, 2026) air quality is poor in São Paulo. Poor air quality in São Paulo may cause breathing discomfort to people exposed and discomfort to people with heart disease. Children, seniors and individuals with respiratory or heart diseases should avoid sustained and high-intensity outdoor exercises in São Paulo. Other residents should moderately reduce outdoor activities in São Paulo.

What is the current level of PM2.5 in São Paulo? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 62 (Unhealthy) For comparison, the highest level of PM2.5 in São Paulo in the last 7 days was: 38 (Wednesday, August 19, 2026) and the lowest: 9 (Monday, August 24, 2026). The highest PM2.5 values were recorded: 37 (September 2017). The lowest level of particulate matter PM2.5 pollution occurs in month: January (10).

What is the level of PM10 today in São Paulo? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in São Paulo is: 63 (Unhealthy for Sensitive Groups) The highest PM10 values usually occur in month: 45 (September 2017). The lowest value of particulate matter PM10 pollution in São Paulo is usually recorded in: January (18).

How is the O3 level today in São Paulo? (ozone (O3))
0 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
90 (Moderate)

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

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

Current data Wednesday, August 26, 2026 at 10:00 PM

PM2,5 62 (Unhealthy)

PM10 63 (Unhealthy for Sensitive Groups)

O3 0 (Good)

NO2 90 (Moderate)

SO2 19 (Good)

CO 671 (Good)

Data on air pollution from recent days in São Paulo

index	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20	2026-08-19
pm25	35 Unhealthy for Sensitive Groups	22 Moderate	9 Good	14 Moderate	15 Moderate	13 Moderate	36 Unhealthy for Sensitive Groups	38 Unhealthy for Sensitive Groups
pm10	36 Moderate	24 Moderate	10 Good	17 Good	18 Good	14 Good	36 Moderate	38 Moderate
o3	49 Good	48 Good	52 Good	82 Moderate	80 Moderate	73 Moderate	102 Moderate	105 Moderate
no2	62 Moderate	36 Good	18 Good	14 Good	16 Good	19 Good	33 Good	66 Moderate
so2	17 Good	14 Good	9 Good	11 Good	10 Good	6 Good	16 Good	20 Good
co	578 Good	311 Good	190 Good	212 Good	225 Good	359 Good	528 Good	754 Good

data source »

pollution pm25 hikersbay.com — Air pollution in São Paulo from March 2016 to October 2017

index	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
no2	41 (Moderate)	49 (Moderate)	44 (Moderate)	37 (Good)	41 (Moderate)	35 (Good)	27 (Good)	30 (Good)	33 (Good)	30 (Good)	33 (Good)	31 (Good)	30 (Good)	34 (Good)	42 (Moderate)	45 (Moderate)	41 (Moderate)	33 (Good)	37 (Good)	27 (Good)
co:ppm	0.44 (Good)	0.46 (Good)	0.48 (Good)	0.42 (Good)	0.59 (Good)	0.51 (Good)	0.32 (Good)	0.33 (Good)	0.42 (Good)	0.41 (Good)	0.35 (Good)	0.32 (Good)	0.33 (Good)	0.34 (Good)	0.59 (Good)	0.64 (Good)	0.8 (Good)	0.43 (Good)	0.61 (Good)	0.38 (Good)
o3	46 (Good)	57 (Good)	29 (Good)	25 (Good)	19 (Good)	21 (Good)	29 (Good)	33 (Good)	42 (Good)	35 (Good)	41 (Good)	41 (Good)	42 (Good)	44 (Good)	28 (Good)	23 (Good)	15 (Good)	22 (Good)	42 (Good)	36 (Good)
pm25	17 (Moderate)	37 (Unhealthy for Sensitive Groups)	20 (Moderate)	16 (Moderate)	18 (Moderate)	16 (Moderate)	11 (Good)	11 (Good)	13 (Moderate)	10 (Good)	12 (Good)	12 (Good)	12 (Good)	19 (Moderate)	21 (Moderate)	22 (Moderate)	18 (Moderate)	15 (Moderate)	20 (Moderate)	14 (Moderate)
pm10	25 (Moderate)	45 (Moderate)	30 (Moderate)	28 (Moderate)	29 (Moderate)	26 (Moderate)	19 (Good)	19 (Good)	23 (Moderate)	18 (Good)	22 (Moderate)	22 (Moderate)	21 (Moderate)	31 (Moderate)	36 (Moderate)	37 (Moderate)	28 (Moderate)	24 (Moderate)	34 (Moderate)	23 (Moderate)
so2	2 (Good)	4.3 (Good)	3 (Good)	3 (Good)	3 (Good)	2.1 (Good)	1.4 (Good)	1.4 (Good)	1.4 (Good)	0.96 (Good)	1.2 (Good)	1.3 (Good)	1.1 (Good)	1.8 (Good)	2.2 (Good)	2.9 (Good)	2 (Good)	1.8 (Good)	2.3 (Good)	1.3 (Good)

data source »

Quality of life in São Paulo

Green and Parks in the City

São Paulo 43%

Paraguay: 46% Bolivia: 55% Montenegro: 53% Suriname: 40% Uruguay: 65%

particulate matter PM2.5

São Paulo 17 (Moderate)

Pleasure of spending time in the city

São Paulo 40%

Paraguay: 49% Bolivia: 40% Montenegro: 69% Suriname: 63% Uruguay: 67%

particulate matter PM10

São Paulo 28 (Moderate)

Air Pollution

São Paulo 76%

Paraguay: 56% Bolivia: 64% Montenegro: 40% Suriname: 39% Uruguay: 29%

Garbage Disposal

São Paulo 37%

Paraguay: 30% Bolivia: 34% Montenegro: 42% Uruguay: 34%

Availability and quality of drinking water

São Paulo 55%

Paraguay: 57% Montenegro: 71% Suriname: 64% Uruguay: 73%

Cleanliness and tidiness

São Paulo 28%

Paraguay: 26% Bolivia: 32% Montenegro: 51% Suriname: 36% Uruguay: 38%

Noise and Light pollution

São Paulo 69%

Paraguay: 52% Bolivia: 59% Montenegro: 32% Suriname: 34% Uruguay: 48%

Water Pollution

São Paulo 74%

Paraguay: 65% Bolivia: 66% Montenegro: 38% Suriname: 57% Uruguay: 46%

Source: Numbeo

São Paulo

Wednesday, August 26, 2026 at 10:00 PM

PM2,5 62 (Unhealthy)

particulate matter (PM2.5) dust

PM10 63 (Unhealthy for Sensitive Groups)

particulate matter (PM10) suspended dust

O3 0 (Good)

ozone (O3)

NO2 90 (Moderate)

nitrogen dioxide (NO2)

SO2 19 (Good)

sulfur dioxide (SO2)

CO 671 (Good)

carbon monoxide (CO)

São Paulo

index	2026-08-19	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26
pm25	38	36	13	15	14	8.5	22	35
pm10	38	36	14	18	17	10	24	36
o3	105	102	73	80	82	52	48	49
no2	66	33	19	16	14	18	36	62
so2	20	16	6	10	11	9.1	14	17
co	754	528	359	225	212	190	311	578

Ibirapuera

index	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
no2	30	35	36	29	34	26	20	26	28	21	25	24	25	28	39	41	40	29	31	23
co:ppm	0.18	0.2	0.25	0.17	0.22	0.27	0.16	0.1	0.1	0.1	0.12	0.16	0.15	0.2	0.27	0.3	0.39	0.2	0.22	0.19
o3	55	68	33	29	22	24	34	40	49	41	49	50	50	48	37	33	21	27	48	40
pm25	18	37	20	16	17	15	11	11	13	9.7	12	12	12	19	21	22	18	15	20	14

Pinheiros

index	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
co:ppm	0.55	0.61	0.57	0.55	0.8	0.61	0.33	0.4	0.6	0.56	0.41	0.36	0.37	-	0.9	1	1.4	0.58	1.1	0.46
o3	38	46	25	21	16	17	25	25	35	30	34	32	34	39	18	14	10	17	35	33
no2	43	54	47	42	45	41	31	33	37	32	36	36	33	38	41	49	42	37	43	-
pm10	25	46	30	30	30	26	19	20	24	18	-	-	-	-	-	-	-	-	-	-
pm25	16	-	-	17	19	16	11	11	13	11	-	-	-	-	-	-	-	-	-	-

Cerqueira César

index	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
pm10	26	44	30	26	28	25	19	19	22	19	22	22	21	31	36	37	28	24	34	23
co:ppm	0.6	0.58	0.62	0.53	0.75	0.66	0.46	0.51	0.55	0.57	0.52	0.44	0.46	0.47	0.59	0.6	0.65	0.51	0.51	0.49
no2	50	59	49	39	43	38	30	32	36	35	37	32	33	37	46	46	41	33	38	31
so2	2	4.3	3	3	3	2.1	1.4	1.4	1.4	0.96	1.2	1.3	1.1	1.8	2.2	2.9	2	1.8	2.3	1.3

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

🌦️ Weather · 16-day Forecast — Brazil

16-day weather forecast for Brazil: today around 40°C (partly cloudy), lows near 22°C. Daily temperature and conditions, updated every day. A moderate breeze (about 9 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Brazil

The UV index in Brazil today is 7.9 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around São Paulo — compare nearby locations.

Rio de Janeiro 23 µg/m³
Salvador 17 µg/m³
Fortaleza 11 µg/m³
Belo Horizonte 7 µg/m³
Brasília 16 µg/m³
Curitiba 18 µg/m³
Manaus 16 µg/m³
Recife 13 µg/m³

Frequently asked questions

Is the air safe to breathe in São Paulo today?

The current average PM2.5 across São Paulo is about 62 µg/m³, rated “Unhealthy”. Sensitive groups should limit time outdoors and consider a mask; everyone should reduce prolonged exertion.

What is the current PM2.5 level in São Paulo?

Right now PM2.5 in São Paulo averages about 62 µg/m³ (“Unhealthy”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in São Paulo?

Over the past week, the highest daily PM2.5 in São Paulo was recorded on Wednesday, August 19 (about 38 µg/m³).

What is the UV index in São Paulo today?

The UV index in São Paulo today is 7.9 (high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in São Paulo?

A moderate breeze (about 9 km/h) is partially dispersing pollutants today.

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.