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

Latest air quality data: Cusco

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

particulate matter (PM2.5) dust - 6 (Good)
particulate matter (PM10) suspended dust - 6 (Good)
ozone (O3) - 40 (Good)
nitrogen dioxide (NO2) - 20 (Good)
sulfur dioxide (SO2) - 2 (Good)
carbon monoxide (CO) - 165 (Good)

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

AQI 1 Good

What is the air quality in Cusco today? Is the air polluted in Cusco?. 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 Cusco.

What is the current level of PM2.5 in Cusco? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 6 (Good) For comparison, the highest level of PM2.5 in Cusco in the last 7 days was: 9 (Tuesday, August 25, 2026) and the lowest: 4 (Sunday, August 23, 2026).

What is the level of PM10 today in Cusco? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Cusco is: 6 (Good)

How is the O3 level today in Cusco? (ozone (O3))
40 (Good)

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

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

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

Current data Wednesday, August 26, 2026 at 8:00 PM

PM2,5 6 (Good)

PM10 6 (Good)

O3 40 (Good)

NO2 20 (Good)

SO2 2 (Good)

CO 165 (Good)

Data on air pollution from recent days in Cusco

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	7 Good	9 Good	5 Good	4 Good	5 Good	6 Good	6 Good	5 Good
pm10	8 Good	11 Good	6 Good	4 Good	5 Good	6 Good	7 Good	5 Good
o3	56 Good	53 Good	41 Good	36 Good	36 Good	37 Good	41 Good	42 Good
no2	16 Good	12 Good	10 Good	6 Good	10 Good	15 Good	15 Good	13 Good
so2	2 Good	2 Good	1 Good	1 Good	1 Good	2 Good	2 Good	1 Good
co	171 Good	153 Good	138 Good	124 Good	145 Good	176 Good	173 Good	157 Good

data source »

Cusco

Wednesday, August 26, 2026 at 8:00 PM

PM2,5 5.5 (Good)

particulate matter (PM2.5) dust

PM10 6.1 (Good)

particulate matter (PM10) suspended dust

O3 40 (Good)

ozone (O3)

NO2 20 (Good)

nitrogen dioxide (NO2)

SO2 2.1 (Good)

sulfur dioxide (SO2)

CO 165 (Good)

carbon monoxide (CO)

Cusco

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	4.7	6.3	6	4.9	3.9	5.4	9.4	6.8
pm10	5.4	7	6.3	5	4	5.9	11	8.1
o3	42	41	37	36	36	41	53	56
no2	13	15	15	9.9	6.5	10	12	16
so2	1.5	1.7	1.7	1.3	1.1	1.3	1.5	2.3
co	157	173	176	145	124	138	153	171

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

🌦️ Weather · 16-day Forecast — Peru

16-day weather forecast for Peru: today around 32°C (rain), lows near 20°C. Daily temperature and conditions, updated every day. A moderate breeze (about 12 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Peru

The UV index in Peru today is 8.4 (very high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Cusco — compare nearby locations.

Lima 16 µg/m³
Arequipa 27 µg/m³
Trujillo Province 13 µg/m³
Chiclayo 14 µg/m³
Iquitos 10 µg/m³
Huancayo 3 µg/m³
Piura 13 µg/m³
Chimbote 13 µg/m³

Frequently asked questions

Is the air safe to breathe in Cusco today?

The current average PM2.5 across Cusco 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 Cusco?

Right now PM2.5 in Cusco 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 Cusco?

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

What is the UV index in Cusco today?

The UV index in Cusco today is 8.4 (very high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Cusco?

A moderate breeze (about 12 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.