Fine particles
6.7µg/m³CAMS model • Open-Meteo
PeruAir quality, PM2.5 and PM10
Compare air quality across cities in this country. Explore PM2.5, PM10 and other pollutant concentrations, check data timestamps, and view recent trends and historical charts.
Peru - average concentrations across available points: PM2.5: 6.7 µg/m³, PM10: 16.7 µg/m³, O₃: 42.3 µg/m³, NO₂: 4.7 µg/m³, SO₂: 1.2 µg/m³, CO: 215.4 µg/m³. Date range: October 22, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
Lowest PM2.5: Juliaca (1.2 µg/m³). Highest PM2.5: Arequipa (19 µg/m³). This comparison covers 20 cities on October 22, 2026 using their latest available hourly values. Reading times may differ; this is not an annual-average ranking.
Air quality questions →All cities · Peru
20 citiesPeru↗
Lima
PM2.513.2
PM1037.5
µg/m³
PM2.5 · FairNO₂ 14.5O₃ 35
October 22, 202620:00
Peru↗
Arequipa
PM2.519
PM1090.1
µg/m³
PM2.5 · ModerateNO₂ 14.3O₃ 47
October 22, 202620:00
Peru↗
Trujillo Province
PM2.510.6
PM1018.2
µg/m³
PM2.5 · FairNO₂ 6O₃ 45
October 22, 202620:00
Peru↗
Chiclayo
PM2.511.4
PM1019.5
µg/m³
PM2.5 · FairNO₂ 1.9O₃ 51
October 22, 202620:00
Peru↗
Iquitos
PM2.56.7
PM106.7
µg/m³
PM2.5 · FairNO₂ 2.5O₃ 21
October 22, 202620:00
Peru↗
Huancayo
PM2.52.6
PM102.7
µg/m³
PM2.5 · GoodNO₂ 4.7O₃ 45
October 22, 202620:00
Peru↗
Piura
PM2.56.3
PM109.3
µg/m³
PM2.5 · FairNO₂ 1.4O₃ 44
October 22, 202620:00
Peru↗
Chimbote
PM2.58.7
PM1016.2
µg/m³
PM2.5 · FairNO₂ 2.5O₃ 48
October 22, 202620:00
Peru↗
Cusco
PM2.52.2
PM102.2
µg/m³
PM2.5 · GoodNO₂ 5.9O₃ 46
October 22, 202620:00
Peru↗
Pucallpa
PM2.53.3
PM103.3
µg/m³
PM2.5 · GoodNO₂ 4.1O₃ 10
October 22, 202620:00
Peru↗
Tacna
PM2.514.1
PM1057.5
µg/m³
PM2.5 · FairNO₂ 3O₃ 50
October 22, 202620:00
Peru↗
Ica
PM2.58.9
PM1027.8
µg/m³
PM2.5 · FairNO₂ 1.3O₃ 45
October 22, 202620:00
Peru↗
Juliaca
PM2.51.2
PM101.3
µg/m³
PM2.5 · GoodNO₂ 4.1O₃ 50
October 22, 202620:00
Peru↗
Sullana
PM2.56.8
PM109.5
µg/m³
PM2.5 · FairNO₂ 2.5O₃ 44
October 22, 202620:00
Peru↗
Chincha Alta
PM2.58.3
PM1019.3
µg/m³
PM2.5 · FairNO₂ 1.5O₃ 44
October 22, 202620:00
Peru↗
Huánuco
PM2.52.2
PM102.2
µg/m³
PM2.5 · GoodNO₂ 2O₃ 36
October 22, 202620:00
Peru↗
Ayacucho
PM2.53.5
PM103.6
µg/m³
PM2.5 · GoodNO₂ 3.3O₃ 51
October 22, 202620:00
Peru↗
Cajamarca
PM2.51.7
PM101.7
µg/m³
PM2.5 · GoodNO₂ 6.4O₃ 35
October 22, 202620:00
Peru↗
Puno
PM2.51.6
PM101.7
µg/m³
PM2.5 · GoodNO₂ 6.5O₃ 45
October 22, 202620:00
Peru↗
Tumbes
PM2.52.6
PM102.9
µg/m³
PM2.5 · GoodNO₂ 5.6O₃ 54
October 22, 202620:00
PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
AVERAGE ACROSS AVAILABLE COUNTRY POINTS
Latest concentrations · Peru
Particulate matter
16.7µg/m³Ozone
42.3µg/m³Nitrogen dioxide
4.7µg/m³Sulphur dioxide
1.2µg/m³Carbon monoxide
215.4µg/m³Average of the latest available hour at each model point. This is neither a population-weighted nor a daily average.
DAILY DATA · Peru
Peru - air pollution over recent days (2026-08-30 - 2026-10-21)
Averages across available points in the country. These are not population-weighted averages.
PM2.5Lowest 7.11 2026-10-21Highest 13.03 2026-10-172026-08-30 - 2026-10-21
PM10Lowest 19.52 2026-10-21Highest 27.95 2026-10-172026-08-30 - 2026-10-21
O₃Lowest 47.07 2026-10-21Highest 58.42 2026-09-012026-08-30 - 2026-10-21
NO₂Lowest 2.97 2026-09-06Highest 5.85 2026-09-032026-08-30 - 2026-10-21
SO₂Lowest 1.41 2026-10-16Highest 1.97 2026-09-022026-08-30 - 2026-10-21
COLowest 152.71 2026-08-30Highest 254.91 2026-10-192026-08-30 - 2026-10-21
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-21 | 2026-10-20 | 2026-10-19 | 2026-10-18 | 2026-10-17 | 2026-10-16 | 2026-10-15 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 | 2026-08-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 7.11 | 7.93 | 9.63 | 11.18 | 13.03 | 10.2 | 10.34 | 9.03 | 9.48 | 10.07 | 9.54 | 10.82 | 12.33 | 10 | 8.55 |
| PM10 | 19.52 | 20.6 | 22.82 | 24.85 | 27.95 | 25.42 | 24.73 | 19.86 | 20 | 21.52 | 20.8 | 22.9 | 24.24 | 21.81 | 19.83 |
| O₃ | 47.07 | 52.15 | 53.06 | 54.71 | 55.66 | 52.6 | 50.85 | 56.31 | 57.1 | 55.15 | 53.72 | 58.19 | 58.42 | 58.05 | 55.55 |
| NO₂ | 4.37 | 3.53 | 3.81 | 3.35 | 3.56 | 4 | 4.7 | 2.97 | 3.97 | 5.34 | 5.85 | 5.66 | 5.61 | 4.72 | 3.36 |
| SO₂ | 1.46 | 1.49 | 1.64 | 1.65 | 1.55 | 1.41 | 1.51 | 1.6 | 1.69 | 1.62 | 1.78 | 1.97 | 1.75 | 1.64 | 1.62 |
| CO | 186.27 | 187.67 | 254.91 | 184.98 | 174.8 | 176.18 | 177 | 183.79 | 184.69 | 200.46 | 215.3 | 245.2 | 228.9 | 188.14 | 152.71 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Peru
Peru - air pollution history (2016-03 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 12.6 2020-04Highest 65.8 2019-092016-03 - 2020-05
PM10Lowest 23.7 2020-04Highest 108 2017-042016-03 - 2020-05
O₃Lowest 6.51 2020-03Highest 15.2 2018-032016-03 - 2020-05
NO₂Lowest 7.4 2020-03Highest 30.8 2018-062016-03 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2017-12 | 2017-11 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 15.6 | 12.6 | 14.2 | 18.2 | 16.9 | 21.7 | 25.1 | 34.3 | 65.8 | 39.1 | 33.8 | 36 | 29.9 | 21.1 | 20.2 | 16.5 | 17.4 | 22.3 | 27.9 | 25.7 | 32.1 | 27.9 | 24.1 | 24.3 | 31.5 | 27 | 28.8 | 26.2 | — | — | — | — | 39.5 | — | 28.2 | 29.3 | 27.5 | 28.4 | 25.4 | 27.3 | 24.1 | 26.4 | 25.1 | 23.6 | 31.1 | 26 | 26.1 | 44.6 | 40.8 | 31.2 | 25 |
| PM10 | 32.8 | 23.7 | 29.3 | 28.9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 64.1 | 80.2 | 67.7 | 61.3 | 63 | 91.1 | 90.6 | 84.1 | 79 | — | — | — | — | — | — | 63.3 | 67.7 | 71.8 | 108 | 91.2 | 88.2 | 79.3 | 80 | 88.8 | 68.7 | 70.6 | 58.1 | 63.4 | 98.4 | 105 | 97.8 | 93.6 |
| O₃ | 6.62 | 8.03 | 6.51 | 8.27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13.2 | 11 | 8.32 | 7.35 | 7.29 | 11.2 | 11.8 | 15.2 | 14.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| NO₂ | 14.3 | 8.63 | 7.4 | 12.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 27.2 | 28.6 | 22 | 24.8 | 30.8 | 29.6 | 23.6 | 22.4 | 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Environment and quality of life ratings · Peru
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Peru | Ecuador | Bolivia | Colombia | Panama | Costa Rica |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 45% | 64% | 55% | 57% | 51% | 61% |
| Pleasure of spending time in the city | 36% | 52% | 40% | 47% | 55% | 62% |
| Air Pollution | 76% | 53% | 64% | 63% | 42% | 36% |
| Garbage Disposal | 36% | 48% | 34% | 50% | 33% | 50% |
| Availability and quality of drinking water | 38% | 63% | 50% | 73% | 66% | 83% |
| Cleanliness and tidiness | 29% | 46% | 32% | 45% | 37% | 46% |
| Noise and Light pollution | 68% | 57% | 59% | 57% | 60% | 47% |
| Water Pollution | 76% | 56% | 66% | 52% | 57% | 44% |
WEATHER & SURROUNDINGS
Peru · weather forecast
Daily maximum and minimum temperatures. Forecast point: -9.19, -75.0152.
Scroll the forecast to see the following days.
Peru · October 20, 2026: minimum temperature 21.7°C, maximum 34.2°C. Wind: 6.5 km/h. Humidity: 50%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-10-20 | 33.6 | 21.7 | 34.2 | 24 | 7.4 | 1.8 | 50 | 41 |
| 2026-10-21 | 28.6 | 22.2 | 33.7 | 23.2 | 7.3 | 2.3 | 60 | 100 |
| 2026-10-22 | 35 | 21.2 | 37 | 22.7 | 6.8 | 2.4 | 42 | 95 |
| 2026-10-23 | 23.8 | 21.9 | 24.5 | 21.9 | 25.6 | 1.6 | 97 | 100 |
| 2026-10-24 | 33.8 | 21.2 | 35.5 | 24.4 | 0.3 | 1.8 | 46 | 77 |
| 2026-10-25 | 33.9 | 22.1 | 38.2 | 24.6 | 0.9 | 1.7 | 48 | 96 |
| 2026-10-26 | 34.8 | 22.5 | 38.9 | 23.5 | 1.1 | 2.2 | 45 | 100 |
| 2026-10-27 | 32.1 | 22.7 | 32.1 | 22.8 | 8.3 | 1.8 | 54 | 100 |
| 2026-10-28 | 23.7 | 21.6 | 28.5 | 22.2 | 22.7 | 2.3 | 98 | 100 |
| 2026-10-29 | 28 | 21.6 | 30.8 | 22.3 | 15.4 | 2.9 | 70 | 98 |
| 2026-10-30 | 26 | 21.9 | 32.1 | 22.3 | 16 | 1.9 | 83 | 100 |
| 2026-10-31 | 23.1 | 21.5 | 23.3 | 21.5 | 30.8 | 1.1 | 99 | 100 |
| 2026-11-01 | 27.8 | 19.9 | 27.8 | 21.9 | 8.5 | 2.3 | 68 | 99 |
| 2026-11-02 | 28.4 | 20.9 | 31.7 | 22.1 | 0.5 | 2 | 66 | 100 |
| 2026-11-03 | 31.8 | 21 | 35.4 | 24.6 | 0.3 | 1.8 | 54 | 76 |
| 2026-11-04 | 32.6 | 21.7 | 35.4 | 22.8 | 2.9 | 1.5 | 51 | 84 |
| 2026-11-05 | 29.9 | 21.5 | 29.9 | 22.5 | 21.9 | 1.1 | 63 | 100 |
UV index by day · Peru
Data for a country reference point. Local conditions may differ.
SPF 50, long sleeves and shade between 10:00-16:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Peru · October 22, 2026: UV index: 8.8 .
| Indicator | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 | 2026-10-30 | 2026-10-31 | 2026-11-01 | 2026-11-02 | 2026-11-03 | 2026-11-04 | 2026-11-05 | 2026-11-06 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 8.8 | 7.9 | 9.4 | 9.5 | 9.6 | 7.8 | 6.6 | 6.1 | 2.9 | 1.1 | 8.2 | 7.4 | 9.4 | 9.9 | 3.3 | — |
AIR QUALITY QUESTIONS
Peru · air pollution - questions and answers
What do the latest air quality data show for Peru?
Peru - average concentrations across available points: PM2.5: 6.7 µg/m³, PM10: 16.7 µg/m³, O₃: 42.3 µg/m³, NO₂: 4.7 µg/m³, SO₂: 1.2 µg/m³, CO: 215.4 µg/m³. Date range: October 22, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
When was PM2.5 highest in Peru over the past week?
The highest available daily mean PM2.5 was 13 µg/m³ (October 17, 2026). This comparison covers 7 days with data in the seven days before October 22, 2026. The day of the latest reading is excluded because it may be incomplete.
Which cities in Peru have the cleanest and most polluted air by PM2.5?
Lowest PM2.5: Juliaca (1.2 µg/m³). Highest PM2.5: Arequipa (19 µg/m³). This comparison covers 20 cities on October 22, 2026 using their latest available hourly values. Reading times may differ; this is not an annual-average ranking.
What period does the pollution history for Peru cover?
Available monthly means cover 2016-03 - 2020-05. The tables include PM2.5, PM10, O₃, NO₂. Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Peru an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Peru?
For October 22, 2026, the forecast UV index is 8.8. The UV section also shows the following available days.
What wind speed is forecast for Peru?
For October 20, 2026, forecast wind speed is 6.5 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.