Air Quality in Montevideo Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

Latest air quality data: Montevideo

Locations: Montevideo

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

particulate matter (PM2.5) dust - 7 (Good)
particulate matter (PM10) suspended dust - 8 (Good)
ozone (O3) - 43 (Good)
nitrogen dioxide (NO2) - 7 (Good)
sulfur dioxide (SO2) - 3 (Good)
carbon monoxide (CO) - 202 (Good)

Real-time Air Quality Index (AQI) for Montevideo, Wednesday, August 26, 2026: 1.

AQI 1 Good

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

Today (Wednesday, August 26, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Montevideo.

What is the current level of PM2.5 in Montevideo? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 7 (Good) For comparison, the highest level of PM2.5 in Montevideo in the last 7 days was: 11 (Friday, August 21, 2026) and the lowest: 6 (Wednesday, August 26, 2026).

What is the level of PM10 today in Montevideo? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Montevideo is: 8 (Good)

How is the O3 level today in Montevideo? (ozone (O3))
43 (Good)

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

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

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

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

PM2,5 7 (Good)

PM10 8 (Good)

O3 43 (Good)

NO2 7 (Good)

SO2 3 (Good)

CO 202 (Good)

Data on air pollution from recent days in Montevideo

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	6 Good	7 Good	10 Good	9 Good	6 Good	11 Good	11 Good	9 Good
pm10	7 Good	9 Good	13 Good	13 Good	8 Good	18 Good	14 Good	13 Good
o3	41 Good	45 Good	54 Good	55 Good	48 Good	55 Good	30 Good	47 Good
no2	6 Good	5 Good	5 Good	3 Good	4 Good	2 Good	13 Good	7 Good
so2	2 Good	2 Good	3 Good	2 Good	2 Good	1 Good	4 Good	3 Good
co	219 Good	289 Good	454 Good	148 Good	127 Good	139 Good	547 Good	435 Good

data source »

Quality of life in Montevideo

Green and Parks in the City

Montevideo 61%

Montenegro: 53% Argentina: 65% Paraguay: 46% Chile: 40% Bolivia: 55%

particulate matter PM2.5

Montevideo 8 (Good)

Pleasure of spending time in the city

Montevideo 64%

Montenegro: 69% Argentina: 64% Paraguay: 49% Chile: 35% Bolivia: 40%

particulate matter PM10

Montevideo 26 (Moderate)

Air Pollution

Montevideo 32%

Montenegro: 40% Argentina: 42% Paraguay: 56% Chile: 77% Bolivia: 64%

Garbage Disposal

Montevideo 27%

Montenegro: 42% Argentina: 48% Paraguay: 30% Chile: 40% Bolivia: 34%

Availability and quality of drinking water

Montevideo 72%

Montenegro: 71% Argentina: 69% Paraguay: 57% Chile: 58%

Cleanliness and tidiness

Montevideo 31%

Montenegro: 51% Argentina: 43% Paraguay: 26% Chile: 36% Bolivia: 32%

Noise and Light pollution

Montevideo 51%

Montenegro: 32% Argentina: 53% Paraguay: 52% Chile: 60% Bolivia: 59%

Water Pollution

Montevideo 46%

Montenegro: 38% Argentina: 55% Paraguay: 65% Chile: 62% Bolivia: 66%

Source: Numbeo

Montevideo

Wednesday, August 26, 2026 at 10:00 PM

PM2,5 7.3 (Good)

particulate matter (PM2.5) dust

PM10 8.3 (Good)

particulate matter (PM10) suspended dust

O3 43 (Good)

ozone (O3)

NO2 7.4 (Good)

nitrogen dioxide (NO2)

SO2 3.1 (Good)

sulfur dioxide (SO2)

CO 202 (Good)

carbon monoxide (CO)

Montevideo

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	9.5	11	11	5.7	8.6	9.7	6.6	5.7
pm10	13	14	18	7.7	13	13	8.7	6.7
o3	47	30	55	48	55	54	45	41
no2	6.6	13	2.1	3.6	2.6	4.5	5.3	6.2
so2	3.2	4.4	1.3	2.3	1.9	2.9	2.4	2.4
co	435	547	139	127	148	454	289	219

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

🌦️ Weather · 16-day Forecast — Montevideo

16-day weather forecast for Montevideo: today around 11°C (partly cloudy), lows near 7°C. Daily temperature and conditions, updated every day. A moderate breeze (about 16 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Montevideo

The UV index in Montevideo today is 5.2 (moderate) — unprotected fair skin can burn in about 40 minutes.

Frequently asked questions

Is the air safe to breathe in Montevideo today?

The current average PM2.5 across Montevideo is about 7 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Montevideo?

Right now PM2.5 in Montevideo averages about 7 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 Montevideo?

Over the past week, the highest daily PM2.5 in Montevideo was recorded on Thursday, August 20 (about 11 µg/m³).

What is the UV index in Montevideo today?

The UV index in Montevideo today is 5.2 (moderate) — unprotected fair skin can burn in about 40 minutes.

Does today's wind help disperse smog in Montevideo?

A moderate breeze (about 16 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.