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

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

1. particulate matter (PM2.5) dust - 23 (Moderate)
2. particulate matter (PM10) suspended dust - 26 (Moderate)
3. ozone (O3) - 22 (Good)
4. nitrogen dioxide (NO2) - 50 (Moderate)
5. sulfur dioxide (SO2) - 9 (Good)
6. carbon monoxide (CO) - 189 (Good)

Real-time Air Quality Index (AQI) for Rio de Janeiro, Wednesday, August 26, 2026: 2.

What is the current level of PM2.5 in Rio de Janeiro? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 23 (Moderate) For comparison, the highest level of PM2.5 in Rio de Janeiro in the last 7 days was: 34 (Thursday, August 20, 2026) and the lowest: 17 (Tuesday, August 25, 2026).

What is the level of PM10 today in Rio de Janeiro? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Rio de Janeiro is: 26 (Moderate)

How is the O3 level today in Rio de Janeiro? (ozone (O3))
22 (Good)

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

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

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

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

Quality of life in Rio de Janeiro

Rio de Janeiro

Wednesday, August 26, 2026 at 10:00 PM

🌦️ 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 Rio de Janeiro — compare nearby locations.

• São Paulo 62 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 Rio de Janeiro today?

The current average PM2.5 across Rio de Janeiro is about 23 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Rio de Janeiro?

Right now PM2.5 in Rio de Janeiro averages about 23 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Rio de Janeiro?

Over the past week, the highest daily PM2.5 in Rio de Janeiro was recorded on Thursday, August 20 (about 34 µg/m³).

What is the UV index in Rio de Janeiro today?

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

Does today's wind help disperse smog in Rio de Janeiro?

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.