CAMS model • Open-Meteo

CalamaAir quality, PM2.5 and PM10

Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.

Calama - latest available concentrations (October 22, 2026, 22:00 local time): PM2.5: 16.8 µg/m³, PM10: 90.8 µg/m³, O₃: 76 µg/m³, NO₂: 1.7 µg/m³, SO₂: 1.7 µg/m³, CO: 136 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

Calama · Air pollutant concentrations

Data time: October 22, 2026 · 22:00 · local time
PM2.5

Fine particles

16.8µg/m³Moderate · 1 hour
PM10

Particulate matter

90.8µg/m³Moderate · 1 hour
O₃

Ozone

76µg/m³Fair · 1 hour
NO₂

Nitrogen dioxide

1.7µg/m³Good · 1 hour
SO₂

Sulphur dioxide

1.7µg/m³Good · 1 hour
CO

Carbon monoxide

136µg/m³

PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →

DAILY DATA · Calama

Calama - air pollution over recent days (2026-08-30 - 2026-10-21)

Concentrations of all available pollutants for this city.

PM2.5Lowest 15.24 2026-10-15Highest 25.73 2026-08-302026-08-30 - 2026-10-21
071421282026-08-30: 25.73 µg/m³08-302026-08-31: 16.66 µg/m³08-312026-09-01: 20.14 µg/m³09-012026-09-02: 18.34 µg/m³09-022026-09-03: 17.91 µg/m³09-032026-09-04: 16.73 µg/m³09-042026-09-05: 16.77 µg/m³09-052026-09-06: 20.75 µg/m³09-062026-10-15: 15.24 µg/m³10-152026-10-16: 16.65 µg/m³10-162026-10-17: 15.78 µg/m³10-172026-10-18: 20.52 µg/m³10-182026-10-19: 17.68 µg/m³10-192026-10-20: 17.95 µg/m³10-202026-10-21: 16.5 µg/m³10-21µg/m³

Scroll the chart or table sideways to see the full period.

Calama · daily averages · µg/m³
Pollutant2026-10-212026-10-202026-10-192026-10-182026-10-172026-10-162026-10-152026-09-062026-09-052026-09-042026-09-032026-09-022026-09-012026-08-312026-08-30
PM2.516.517.9517.6820.5215.7816.6515.2420.7516.7716.7317.9118.3420.1416.6625.73
PM10107.77120.77112.13136.79104.84104.65102.73124.62101.9393.2888.8393.68102.8298.88164.13
O₃66.0462.6764.4670.9660.8358.3360.1369.8378.0877.8377.7177.6375.5860.7157.5
NO₂1.821.541.430.91.231.751.931.261.862.682.953.092.651.991.38
SO₂1.831.411.911.881.822.271.781.583.43.132.462.451.7822.96
CO115.46107.04103.7597.5100.5110108115.67103.13114.13116.88122.38107.21107.0895.58

A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.

How should I interpret the data and averaging period? →

Open-Meteo / CAMS ↗

AIR QUALITY ARCHIVE · Calama

Calama - air pollution history (2015-09 - 2020-05)

Compare monthly particle and gas concentrations in the available archive.

PM2.5Lowest 5.1 2019-05Highest 16.17 2017-092015-09 - 2020-05
051015202015-09: 9.85 µg/m³2015-092015-10: 11.33 µg/m³2015-11: 10.61 µg/m³··2016-02: 11.97 µg/m³2016-022016-03: 11.48 µg/m³2016-04: 11.3 µg/m³2016-05: 12.17 µg/m³2016-06: 10.84 µg/m³2016-07: 9.68 µg/m³2016-072016-08: 10.74 µg/m³2016-09: 11.17 µg/m³2016-10: 9.96 µg/m³2016-11: 10.23 µg/m³2016-12: 10.28 µg/m³2016-122017-01: 10.69 µg/m³2017-02: 8.69 µg/m³2017-03: 10.19 µg/m³2017-04: 8.68 µg/m³2017-05: 11.71 µg/m³2017-052017-06: 8.65 µg/m³2017-07: 9.12 µg/m³2017-08: 8.93 µg/m³2017-09: 16.17 µg/m³2017-10: 7.35 µg/m³2017-102017-11: 9.85 µg/m³2017-12: 10.64 µg/m³2018-01: 13.2 µg/m³2018-02: 12.82 µg/m³2018-03: 16.13 µg/m³2018-032018-04: 16.13 µg/m³2018-05: 11.41 µg/m³2018-06: 10.8 µg/m³2018-07: 8.94 µg/m³2018-08: 7.71 µg/m³2018-082018-09: 9.47 µg/m³2018-10: 7.27 µg/m³2018-11: 6.99 µg/m³·2019-01: 7.35 µg/m³2019-012019-02: 5.25 µg/m³2019-03: 6.26 µg/m³2019-04: 8.97 µg/m³2019-05: 5.1 µg/m³2019-06: 7.34 µg/m³2019-062019-07: 6.13 µg/m³2019-08: 6.48 µg/m³2019-09: 7.45 µg/m³2019-10: 6.64 µg/m³2019-11: 6.37 µg/m³2019-112019-12: 6.96 µg/m³2020-01: 7.73 µg/m³2020-02: 7.45 µg/m³2020-03: 8.53 µg/m³2020-04: 6.56 µg/m³2020-05: 7.23 µg/m³2020-05µg/m³

Scroll the chart or table sideways to see the full period.

Calama · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-09
PM2.57.236.568.537.457.736.966.376.647.456.486.137.345.18.976.265.257.35—6.997.279.477.718.9410.811.4116.1316.1312.8213.210.649.857.3516.178.939.128.6511.718.6810.198.6910.6910.2810.239.9611.1710.749.6810.8412.1711.311.4811.97——10.6111.339.85
PM1039.9334.7736.8333.333.437.837.937.3335.541.2332.6341.5333.4739.3534.7339.1334.8—40.3737.0739.836.7736.1744.3347.7741.341.3737.0739.3734.7736.341.1753.948.341.7736.134034.4333.6734.8333.2340.1740.1741.8743.647.3340.7743.6342.638.3343.9738.97——43.141.2345.27
O₃38.434.224.427.136.54060.270.858.959.144.238.632.235.321.917.933.3—56.268.965.250.949.447.944.633.445.425.634.842.145.859.755.84650.638.931.335.822.921.621.74055.958.849.854.845.444.733.534.928.331.1——56.852.457.3
SO₂3.623.426.227.094.844.013.273.26.454.593.513.9110.16.885.464.147.65—7.446.674.8110.46.528.099.374.766.86.875.397.324.953.41.583.156.938.166.565.173.525.614.024.365.587.438.687.688.838.476.67125.485.27——4.957.014.21
CO1431861923012313143403883481544529562512362331386—3944604924255445865293908761862734482474603840463446509310249187378314268399488407434544450389420373——370439292

A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.

How should I interpret the data and averaging period? →

OpenAQ ↗

Historical data by station 4

AIR QUALITY ARCHIVE · Complejo Deportivo 23 de Marzo

Complejo Deportivo 23 de Marzo

Station code: Club Deportivo 23 de Marzo

Monthly monitoring station data.

PM2.5Lowest 5.42 2019-05Highest 12.7 2020-032019-04 - 2020-05

Scroll the chart or table sideways to see the full period.

Complejo Deportivo 23 de Marzo · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-04
PM2.56.758.0812.79.817.797.617.356.978.037.347.899.445.426.52
PM1040.437.741.232.430.84239.540.83849.640.246.836.937.9

A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.

How should I interpret the data and averaging period? →

OpenAQ ↗Chile - SINCA

AIR QUALITY ARCHIVE · Colegio Pedro Vergara Keller

Colegio Pedro Vergara Keller

Station code: Colegio Pedro Vergara Keller

Monthly monitoring station data.

PM2.5Lowest 5.48 2019-05Highest 22.7 2018-042015-09 - 2020-05

Scroll the chart or table sideways to see the full period.

Colegio Pedro Vergara Keller · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-09
PM2.58.977.347.737.449.977.858.187.59.276.35.777.55.4817.58.355.898.43—7.612.515.79.2910.21717.722.7198.0512.315.314.49.0611.710.710.410.116.97.478.857.4411.313.315.114.613.813.29.429.8311.311.81312——12.314.714
PM1045.94041.636.145.243.143.639.538.935.4284332.956.842.165.344.3—47.845.247.348.848.958.460.650.647.736.54451.34351.355.756.645.341.851.636.434.539.436.147.946.648.347.65644.446.442.542.248.338.5——45.73649.4

A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.

How should I interpret the data and averaging period? →

OpenAQ ↗Chile - SINCA

AIR QUALITY ARCHIVE · Complejo Deportivo 23 de Marzo

Complejo Deportivo 23 de Marzo

Station code: Complejo Deportivo 23 de Marzo

Monthly monitoring station data.

PM2.5Lowest 3.58 2019-02Highest 19.3 2018-022015-09 - 2019-04

Scroll the chart or table sideways to see the full period.

Complejo Deportivo 23 de Marzo · monthly averages · µg/m³
Pollutant2019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-09
PM2.56.935.033.586.55—7.14.828.049.1710.210.710.615.715.319.316.75.627.127.388.127.848.428.078.247.468.527.528.267.336.96.0887.839.4310.610.58.48.5510.8——6.4445.54
PM1035.433.226.134.9—40.136.941.636.536.844.250.44543.444.240.618.536.746.447.24846.438.936.131.531.930.734.637.638.240.341.244.242.344.945.63943.638.9——44.541.743

A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.

How should I interpret the data and averaging period? →

OpenAQ ↗

AIR QUALITY ARCHIVE · Estación Centro

Estación Centro

Station code: Estación Centro

Monthly monitoring station data.

PM2.5Lowest 3.57 2019-11Highest 28.7 2017-092015-09 - 2020-05

Scroll the chart or table sideways to see the full period.

Estación Centro · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-09
PM2.55.984.255.155.15.445.433.575.455.045.814.745.094.414.935.416.287.07—6.264.484.674.686.414.695.931014.111.110.6118.035.6228.78.248.537.771011.113.211.112.510.28.689.1911.711.210.212.114.713.712.913.1——13.115.310
PM1033.526.627.731.424.228.330.631.729.638.729.734.830.627.328.92625.2—33.229.130.52522.830.432.328.33330.533.534.529.225.858.840.333.627.732.335.434.634.4293535.7374241.835.639.639.733.84039.5——39.14643.4
O₃38.434.224.427.136.54060.270.858.959.144.238.632.235.321.917.933.3—56.268.965.250.949.447.944.633.445.425.634.842.145.859.755.84650.638.931.335.822.921.621.74055.958.849.854.845.444.733.534.928.331.1——56.852.457.3
SO₂3.623.426.227.094.844.013.273.26.454.593.513.9110.16.885.464.147.65—7.446.674.8110.46.528.099.374.766.86.875.397.324.953.41.583.156.938.166.565.173.525.614.024.365.587.438.687.688.838.476.67125.485.27——4.957.014.21
CO1431861923012313143403883481544529562512362331386—3944604924255445865293908761862734482474603840463446509310249187378314268399488407434544450389420373——370439292

A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.

How should I interpret the data and averaging period? →

OpenAQ ↗Chile - SINCA

Environment and quality of life ratings · Calama

Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.

IndicatorCalamaArgentinaUruguayParaguayBoliviaMontenegro
Green and Parks in the City25%65%65%46%55%53%
particulate matter PM2.5 (µg/m³)29—————
Pleasure of spending time in the city6.3%64%67%49%40%69%
particulate matter PM10 (µg/m³)71—————
Air Pollution83%42%29%56%64%40%
Garbage Disposal13%48%34%30%34%42%
Availability and quality of drinking water50%69%73%57%50%71%
Cleanliness and tidiness13%43%38%26%32%51%
Noise and Light pollution75%53%48%52%59%32%
Water Pollution88%55%46%65%66%38%

Air quality in nearby cities

All cities →
Chile↗

Antofagasta

PM2.510.1
PM1016.5

µg/m³

PM2.5 · Fair
NO₂ 2O₃ 50
October 22, 202622:00
Chile↗

Iquique

PM2.56.7
PM1010.2

µg/m³

PM2.5 · Fair
NO₂ 0.8O₃ 53
October 22, 202622:00
Argentina↗

Salta

PM2.57.8
PM1014

µg/m³

PM2.5 · Fair
NO₂ 9.4O₃ 93
October 22, 202622:00
Bolivia↗

Tarija

PM2.51.7
PM102

µg/m³

PM2.5 · Good
NO₂ 1.6O₃ 62
October 22, 202621:00
Bolivia↗

Potosí

PM2.52.2
PM102.9

µg/m³

PM2.5 · Good
NO₂ 2.2O₃ 57
October 22, 202621:00
Chile↗

Arica

PM2.58.1
PM1018.2

µg/m³

PM2.5 · Fair
NO₂ 0.9O₃ 48
October 22, 202622:00
Chile↗

Copiapó

PM2.57.7
PM1010.7

µg/m³

PM2.5 · Fair
NO₂ 3.7O₃ 52
October 22, 202622:00
Chile↗

Coquimbo

PM2.55.1
PM106.8

µg/m³

PM2.5 · Fair
NO₂ 7.7O₃ 29
October 22, 202622:00

Chile · air quality in other cities

SantiagoPuente AltoAntofagastaViña del MarTalcahuanoTemucoIquiqueConcepciónRancaguaTalcaAricaCoquimboPort MonttChillánOsornoValdiviaCopiapóLos ÁngelesPunta Arenas

WEATHER & SURROUNDINGS

Calama · weather forecast

Daily maximum and minimum temperatures. Forecast point: -22.4559, -68.9302.

🌦️ WEATHER · 16-DAY FORECASTCalama☀️22°Clear skyOct 20 · ↑24° ↓2°💨 45 km/h · 💧 9%Tue20.10☀️24°2°Wed21.10☁️26°10°Thu22.10☁️27°6°Fri23.10☁️24°7°Sat24.10☁️23°13°Sun25.10🌤️25°12°Mon26.10☁️21°12°Tue27.10🌧️21°10°Wed28.10🌧️20°11°Thu29.10🌧️20°10°Fri30.10☀️22°10°Sat31.10☀️22°11°Sun1.11☀️23°11°Mon2.11☀️23°11°Tue3.11🌤️23°12°Wed4.11☀️23°12°pollution-alert.com · 2026-10-20 - 2026-11-04
🌦️ WEATHER · 16-DAY FORECASTCalama☀️22°Clear skyOct 20 · ↑24° ↓2°💨 45 km/h · 💧 9%Tue20.10☀️24°2°Wed21.10☁️26°10°Thu22.10☁️27°6°Fri23.10☁️24°7°Sat24.10☁️23°13°Sun25.10🌤️25°12°Mon26.10☁️21°12°Tue27.10🌧️21°10°Wed28.10🌧️20°11°Thu29.10🌧️20°10°Fri30.10☀️22°10°Sat31.10☀️22°11°Sun1.11☀️23°11°Mon2.11☀️23°11°Tue3.11🌤️23°12°Wed4.11☀️23°12°pollution-alert.com · 2026-10-20 - 2026-11-04
🌦️ WEATHER · 16-DAY FORECASTCalama☀️22°Clear skyOct 20 · ↑24° ↓2°💨 45 km/h · 💧 9%Tue20.10☀️24°2°Wed21.10☁️26°10°Thu22.10☁️27°6°Fri23.10☁️24°7°Sat24.10☁️23°13°Sun25.10🌤️25°12°Mon26.10☁️21°12°Tue27.10🌧️21°10°Wed28.10🌧️20°11°Thu29.10🌧️20°10°Fri30.10☀️22°10°Sat31.10☀️22°11°Sun1.11☀️23°11°Mon2.11☀️23°11°Tue3.11🌤️23°12°Wed4.11☀️23°12°pollution-alert.com · 2026-10-20 - 2026-11-04

Scroll the forecast to see the following days.

Calama · October 20, 2026: minimum temperature 1.7°C, maximum 24°C. Wind: 45.4 km/h. Humidity: 9%.

Full forecast: temperature, rainfall, wind and humidity
DateDay °CMin °CMax °CNight °CRain mmWind m/sHumidity %Clouds %
2026-10-20221.72413.2—12.693
2026-10-2124.49.626.213.2—10.311100
2026-10-22255.626.916.5—8.49100
2026-10-2323.5723.815.6—8.613100
2026-10-2422.713.323.214.8—9.617100
2026-10-2523.511.82517.1—8.41348
2026-10-2620.412.321.115.2—9.821100
2026-10-2720.39.720.814.72.511.22833
2026-10-2818.911.12013.91.112.33589
2026-10-2919.21020.114.30.313241
2026-10-3020.210.42215.8—11.41712
2026-10-3120.710.821.816.1—10.4167
2026-11-0121.210.822.716.1—10.1133
2026-11-0221.3112316.6—8.81055
2026-11-032211.823.316.6—7.4814
2026-11-042211.923.116.7—8.2967
2026-11-0521.110.722.615.8—9.712—

UV index by day · Calama

City data.

☀️ UV INDEX · 16-DAY FORECASTCalama03681111+9.8UV VERY HIGHOct 22 · daily maximumSPF 50, long sleeves and shade between 10:00-16:00.10Thu22.1010Fri23.1010Sat24.1011Sun25.106Mon26.107Tue27.1011Wed28.1011Thu29.1011Fri30.1011Sat31.1011Sun1.1111Mon2.1111Tue3.1111Wed4.1111Thu5.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com
☀️ UV INDEX · 16-DAY FORECASTCalama03681111+9.8UV VERY HIGHOct 22 · daily maximumSPF 50, long sleeves and shade between 10:00-16:00.10Thu22.1010Fri23.1010Sat24.1011Sun25.106Mon26.107Tue27.1011Wed28.1011Thu29.1011Fri30.1011Sat31.1011Sun1.1111Mon2.1111Tue3.1111Wed4.1111Thu5.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com

SPF 50, long sleeves and shade between 10:00-16:00.

☀️ UV INDEX · 16-DAY FORECASTCalama03681111+9.8UV VERY HIGHOct 22 · daily maximumSPF 50, long sleeves and shade between 10:00-16:00.10Thu22.1010Fri23.1010Sat24.1011Sun25.106Mon26.107Tue27.1011Wed28.1011Thu29.1011Fri30.1011Sat31.1011Sun1.1111Mon2.1111Tue3.1111Wed4.1111Thu5.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme

Scroll the forecast to see the following days.

Calama · October 22, 2026: UV index: 9.8 .

Indicator2026-10-222026-10-232026-10-242026-10-252026-10-262026-10-272026-10-282026-10-292026-10-302026-10-312026-11-012026-11-022026-11-032026-11-042026-11-052026-11-06
UV index9.810.410.110.55.77.210.510.610.610.710.710.810.810.810.8—

Open-Meteo ↗

AIR QUALITY QUESTIONS

Calama · air pollution - questions and answers

What do the latest air quality data show for Calama?

Calama - latest available concentrations (October 22, 2026, 22:00 local time): PM2.5: 16.8 µg/m³, PM10: 90.8 µg/m³, O₃: 76 µg/m³, NO₂: 1.7 µg/m³, SO₂: 1.7 µg/m³, CO: 136 µg/m³. These are hourly CAMS model values for a point representing the city.

When was PM2.5 highest in Calama over the past week?

The highest available daily mean PM2.5 was 20.5 µg/m³ (October 18, 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.

What period does the pollution history for Calama cover?

Available monthly means cover 2015-09 - 2020-05. The tables include PM2.5, PM10, O₃, SO₂, CO. 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 Calama 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 Calama?

For October 22, 2026, the forecast UV index is 9.8. The UV section also shows the following available days.

What wind speed is forecast for Calama?

For October 20, 2026, forecast wind speed is 45.4 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.