CAMS model • Open-Meteo

LondonAir 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.

London - latest available concentrations (October 23, 2026, 02:00 local time): PM2.5: 2.1 µg/m³, PM10: 3.1 µg/m³, O₃: 58 µg/m³, NO₂: 7.7 µg/m³, SO₂: 0.4 µg/m³, CO: 144 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

London · Air pollutant concentrations

Data time: October 23, 2026 · 02:00 · local time
PM2.5

Fine particles

2.1µg/m³Good · 1 hour
PM10

Particulate matter

3.1µg/m³Good · 1 hour
O₃

Ozone

58µg/m³Good · 1 hour
NO₂

Nitrogen dioxide

7.7µg/m³Good · 1 hour
SO₂

Sulphur dioxide

0.4µg/m³Good · 1 hour
CO

Carbon monoxide

144µg/m³

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

DAILY DATA · London

London - air pollution over recent days (2026-08-31 - 2026-10-22)

Concentrations of all available pollutants for this city.

PM2.5Lowest 3.34 2026-10-18Highest 18.7 2026-10-202026-08-31 - 2026-10-22
061218242026-08-31: 3.4 µg/m³08-312026-09-01: 5.02 µg/m³09-012026-09-02: 5.38 µg/m³09-022026-09-03: 4.03 µg/m³09-032026-09-04: 3.77 µg/m³09-042026-09-05: 4.88 µg/m³09-052026-09-06: 7.6 µg/m³09-062026-09-07: 5.79 µg/m³09-072026-10-16: 4.95 µg/m³10-162026-10-17: 5.45 µg/m³10-172026-10-18: 3.34 µg/m³10-182026-10-19: 9.42 µg/m³10-192026-10-20: 18.7 µg/m³10-202026-10-21: 5.21 µg/m³10-212026-10-22: 4.41 µg/m³10-22µg/m³

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

London · daily averages · µg/m³
Pollutant2026-10-222026-10-212026-10-202026-10-192026-10-182026-10-172026-10-162026-09-072026-09-062026-09-052026-09-042026-09-032026-09-022026-09-012026-08-31
PM2.54.415.2118.79.423.345.454.955.797.64.883.774.035.385.023.4
PM108.328.4823.4511.379.139.658.3310.113.0910.227.217.029.949.836.05
O₃50.9249.1713.8828.5860.7551.9250.3353.8349.2551.7945.7945.3852.3350.3356.71
NO₂21.0521.7437.4731.39.1912.5217.8115.6224.615.3111.4310.2116.7817.38.77
SO₂1.471.332.882.620.881.131.321.081.470.970.720.641.051.180.6
CO173.17177.54260.33209.04164.54176.13164.71160.63186.83170.04141.88128.17160.92172.5162.33

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? →

AIR QUALITY ARCHIVE · London

London - air pollution history (2015-08 - 2020-05)

Compare monthly particle and gas concentrations in the available archive.

PM2.5Lowest 6.88 2019-09Highest 26.45 2016-122015-08 - 2020-05
081624322015-08: 13.4 µg/m³2015-082015-09: 12.15 µg/m³2015-10: 19.05 µg/m³2015-11: 14.15 µg/m³2015-12: 13.65 µg/m³2016-01: 10.76 µg/m³2016-012016-02: 13.45 µg/m³2016-03: 18.9 µg/m³2016-04: 13.3 µg/m³2016-05: 16.5 µg/m³2016-06: 13.65 µg/m³2016-062016-07: 11.41 µg/m³2016-08: 12.6 µg/m³2016-09: 14 µg/m³2016-10: 13.8 µg/m³2016-11: 14.2 µg/m³2016-112016-12: 26.45 µg/m³2017-01: 26.35 µg/m³2017-02: 21.1 µg/m³2017-03: 16.15 µg/m³2017-04: 15.7 µg/m³2017-042017-05: 15.5 µg/m³2017-06: 13.8 µg/m³2017-07: 11.75 µg/m³2017-08: 13.8 µg/m³2017-09: 14.5 µg/m³2017-092017-10: 13.7 µg/m³2017-11: 16.45 µg/m³2017-12: 13.1 µg/m³2018-01: 13.1 µg/m³2018-02: 13.9 µg/m³2018-022018-03: 17.45 µg/m³2018-04: 17.85 µg/m³2018-05: 18.15 µg/m³2018-06: 13.5 µg/m³2018-07: 14.5 µg/m³2018-072018-08: 12.65 µg/m³2018-09: 10.12 µg/m³2018-10: 12.21 µg/m³2018-11: 16.65 µg/m³2018-12: 13.3 µg/m³2018-122019-01: 14.85 µg/m³2019-02: 22.95 µg/m³2019-03: 13.45 µg/m³2019-04: 23.75 µg/m³2019-05: 12.66 µg/m³2019-052019-06: 9.7 µg/m³2019-07: 8.07 µg/m³2019-08: 10.24 µg/m³2019-09: 6.88 µg/m³2019-10: 9 µg/m³2019-102019-11: 12 µg/m³2019-12: 10.92 µg/m³2020-01: 11.3 µg/m³2020-02: 6.91 µg/m³2020-03: 8.84 µg/m³2020-04: 14.55 µg/m³2020-05: 10.15 µg/m³2020-05µg/m³

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

London · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-092015-08
PM2.510.1514.558.846.9111.310.921296.8810.248.079.712.6623.7513.4522.9514.8513.316.6512.2110.1212.6514.513.518.1517.8517.4513.913.113.116.4513.714.513.811.7513.815.515.716.1521.126.3526.4514.213.81412.611.4113.6516.513.318.913.4510.7613.6514.1519.0512.1513.4
PM1017.522.6516.615.718.5517.6519.6517.1516.0520.0516.8517.618.731.9521.231.5522.620.12519.918.0515.8522.1520.52725.726.1522.4519.9519.623.520.3518.119.717.319.9522.6522.922.729.2534.2536.7521.7521.42219.116.519.124.520.626.452418.352524.5527.2515.918.3
O₃62.853.536.822.915.412.51114.719.321.726.123.130.536.324.515.319.911.310.116.91614.230.132.33523.821.923.816.915.813.515.820.72222.725.528.329.818.615.414.44.841115.610.617.17.6919.335.624.421.416.413.31612.911.514.717.7
NO₂20.327.0334.9738.844.445.449.4342.2338.4737.140.541.7342.9344.1746.7358.3358.1357.3754.360.3760.248.3360.8753.3368.660.359.0354.9756.5752.461.455.2354.257.554.7352.751.4755.854.7756.469.2770.4762.4359.6358.5356.1349.4760.8762.2768.1763.1363.765.5560.855.471.6762.9751.53
SO₂1.232.64.635.085.115.076.595.748.485.173.185.333.923.935.097.175.087.086.766.398.556.656.254.324.876.377.057.1410.79.29.378.747.486.926.757.5765.517.298.4811.510.99.647.688.1588.788.646.928.316.6———————

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? →

Historical data by station 3

AIR QUALITY ARCHIVE · Camden Kerbside

Camden Kerbside

Station code: Camden Kerbside

Monthly monitoring station data.

PM2.5Lowest 6.55 2019-09Highest 27.8 2017-012015-08 - 2020-05

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

Camden Kerbside · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-092015-08
PM2.511.315.49.216.6910.39.7411.58.416.559.187.458.29.8321.810.218.713.410.513.99.036.6412.713.413.218.817.717.814.713.312.816.513.514.714.111.813.716.516.916.420.627.826.113.613.912.811.99.9113.616.712.418.512.58.3211.210.317.511.511.6
PM1018.723.416.514.517.816.619.516.315.518.51514.217.531.918.529.422.117.723.318.116.112.821.420.126.923.424.921.917.6172017.516.61915.918.122.522.419.626.43633.518.620.318.815.613.417.323.517.925.120.613.320.320.323.216.717
NO₂2126.328.630.741.939.548.836.934.7343532.641.239.43047.151.545.444.24636.737.651.148.955.743.642.741.743.53353.836.940.143.541.241.75054.243.152.678.469.762.858.552.646.842.460.564.165.858.355.952.13647.974.766.150.8

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? →

AIR QUALITY ARCHIVE · London Marylebone Road

London Marylebone Road

Station code: London Marylebone Road

Monthly monitoring station data.

PM2.5Lowest 7.12 2020-02Highest 27.2 2019-022015-08 - 2020-05

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

London Marylebone Road · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-092015-08
PM2.5913.78.477.1212.312.112.59.67.211.38.6911.215.525.716.727.216.316.119.415.413.612.615.613.817.51817.113.112.913.416.413.914.313.511.713.914.514.515.921.624.926.814.813.715.213.312.913.716.314.219.314.413.216.11820.612.815.2
PM1016.321.916.716.919.318.719.81816.621.618.72119.93223.933.723.122.526.721.72018.922.920.927.12827.42322.322.22723.219.620.418.721.822.823.425.832.132.54024.922.525.222.619.620.925.523.327.827.423.429.728.831.315.119.6
O₃62.853.536.822.915.412.51114.719.321.726.123.130.536.324.515.319.911.310.116.91614.230.132.33523.821.923.816.915.813.515.820.72222.725.528.329.818.615.414.44.841115.610.617.17.6919.335.624.421.416.413.31612.911.514.717.7
NO₂23.629.850.260.261.463.763.661.355.556.960.770.156.659.673.480.464.580.276.586.594.476.995.275.7961028475.483.478.681.384.483.887.182.982.472.362.782.178.483.99286.670.881.580.866.378.874.189.179.685.37985.682.189.572.471.6
SO₂1.232.64.635.085.115.076.595.748.485.173.185.333.923.935.097.175.087.086.766.398.556.656.254.324.876.377.057.1410.79.29.378.747.486.926.757.5765.517.298.4811.510.99.647.688.1588.788.646.928.316.6———————

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? →

AIR QUALITY ARCHIVE · Tower Hamlets Roadside

Tower Hamlets Roadside

Station code: Tower Hamlets Roadside

Monthly monitoring station data.

NO₂Lowest 16.3 2020-05Highest 58.4 2019-012015-08 - 2020-05

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

Tower Hamlets Roadside · monthly averages · µg/m³
Pollutant2020-052020-042020-032020-022020-012019-122019-112019-102019-092019-082019-072019-062019-052019-042019-032019-022019-012018-122018-112018-102018-092018-082018-072018-062018-052018-042018-032018-022018-012017-122017-112017-102017-092017-082017-072017-062017-052017-042017-032017-022017-012016-122016-112016-102016-092016-082016-072016-062016-052016-042016-032016-022016-012015-122015-112015-102015-092015-08
NO₂16.32526.125.529.93335.928.525.220.425.822.53133.536.847.558.446.542.248.649.530.536.335.454.135.350.447.842.845.649.144.438.741.940.13432.150.539.138.245.549.737.949.641.540.839.743.348.649.651.549.9——36.250.850.432.2

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? →

Environment and quality of life ratings · London

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

IndicatorLondonIsle of ManIrelandNetherlandsBelgiumFaroe Islands
Green and Parks in the City62%78%72%82%64%87%
Pleasure of spending time in the city40%83%78%88%64%100%
Air Pollution63%13%24%21%45%0%
Garbage Disposal54%78%61%79%54%88%
Availability and quality of drinking water53%88%72%92%70%98%
Cleanliness and tidiness41%69%52%77%46%94%
Noise and Light pollution68%12%37%31%54%21%
Water Pollution58%13%37%17%42%7.7%
particulate matter PM2.5 (µg/m³)12—————
particulate matter PM10 (µg/m³)23—————

WEATHER THROUGH THE YEAR

What is the weather like throughout the year?

Choose a month to compare daytime and nighttime temperatures and the frequency of rain using historical weather data.

NASA
POWER

London · October

Mean daily maximum15.9°C
Mean daily minimum8.1°C
Days with rainfall ≥1 mm42.3%

Mean daily maximum temperatures by month · Bar scale starts at -15°C

7°
Jan
8.9°
Feb
11.1°
Mar
13.9°
Apr
17.7°
May
21.2°
Jun
23.4°
Jul
23.3°
Aug
20.6°
Sep
15.9°
Oct
10.6°
Nov
8.3°
Dec

NASA POWER: grid data covering the city. Weather history describes the climate; it is not a forecast or an air quality measurement.

View the data table
MonthMean daily maximum °CMean daily minimum °CDays with rainfall ≥1 mm
January71.342.6%
February8.92.341.7%
March11.13.241.9%
April13.94.131%
May17.77.534.2%
June21.210.932.7%
July23.41333.2%
August23.312.931.6%
September20.610.837.7%
October15.98.142.3%
November10.64.543.7%
December8.33.644.5%

Air quality in nearby cities

All cities →

United Kingdom · air quality in other cities

WEATHER & SURROUNDINGS

London · weather forecast

Daily maximum and minimum temperatures. Forecast point: 51.5085, -0.1255.

🌦️ WEATHER · 16-DAY FORECASTLondon🌧️14°RainOct 20 · ↑15° ↓10°💨 14 km/h · 💧 84%Tue20.10🌧️15°10°Wed21.10🌧️11°8°Thu22.10🌧️14°8°Fri23.10🌧️12°8°Sat24.10🌧️15°7°Sun25.10🌧️13°9°Mon26.10🌧️16°8°Tue27.10🌧️16°11°Wed28.10🌧️16°9°Thu29.10☁️16°12°Fri30.10🌧️16°10°Sat31.10🌧️13°9°Sun1.11🌧️11°8°Mon2.11🌧️13°7°Tue3.11☁️12°8°Wed4.11☁️12°8°pollution-alert.com · 2026-10-20 - 2026-11-04
🌦️ WEATHER · 16-DAY FORECASTLondon🌧️14°RainOct 20 · ↑15° ↓10°💨 14 km/h · 💧 84%Tue20.10🌧️15°10°Wed21.10🌧️11°8°Thu22.10🌧️14°8°Fri23.10🌧️12°8°Sat24.10🌧️15°7°Sun25.10🌧️13°9°Mon26.10🌧️16°8°Tue27.10🌧️16°11°Wed28.10🌧️16°9°Thu29.10☁️16°12°Fri30.10🌧️16°10°Sat31.10🌧️13°9°Sun1.11🌧️11°8°Mon2.11🌧️13°7°Tue3.11☁️12°8°Wed4.11☁️12°8°pollution-alert.com · 2026-10-20 - 2026-11-04
🌦️ WEATHER · 16-DAY FORECASTLondon🌧️14°RainOct 20 · ↑15° ↓10°💨 14 km/h · 💧 84%Tue20.10🌧️15°10°Wed21.10🌧️11°8°Thu22.10🌧️14°8°Fri23.10🌧️12°8°Sat24.10🌧️15°7°Sun25.10🌧️13°9°Mon26.10🌧️16°8°Tue27.10🌧️16°11°Wed28.10🌧️16°9°Thu29.10☁️16°12°Fri30.10🌧️16°10°Sat31.10🌧️13°9°Sun1.11🌧️11°8°Mon2.11🌧️13°7°Tue3.11☁️12°8°Wed4.11☁️12°8°pollution-alert.com · 2026-10-20 - 2026-11-04

Scroll the forecast to see the following days.

London · October 20, 2026: minimum temperature 10.4°C, maximum 14.7°C. Wind: 13.5 km/h. Humidity: 84%.

Full forecast: temperature, rainfall, wind and humidity
DateDay °CMin °CMax °CNight °CRain mmWind m/sHumidity %Clouds %
2026-10-2013.810.414.710.45.33.884100
2026-10-219.97.8118.68.56.78999
2026-10-2212.78.313.610.24.74.8641
2026-10-2311.87.712.28.616.9893100
2026-10-2411.76.915.112.819.68.778100
2026-10-25139.2139.20.26.6559
2026-10-2611.37.815.715.74.86.487100
2026-10-2714.411.415.811.44.46.97620
2026-10-2815.69.315.913.60.56.36115
2026-10-291611.71611.72.33.268100
2026-10-3016.410.416.412.20.34728
2026-10-3112.38.812.89.80.53.84917
2026-11-0111.18.511.38.51.15.25647
2026-11-0211.96.812.99.90.45.2659
2026-11-0311.57.612.18.80.14.46369
2026-11-0410.47.911.710.3—2.781100
2026-11-05128.612.79.90.21.96235
2026-11-0611.88.311.811.8—2.172100

UV index by day · London

City data.

☀️ UV INDEX · 16-DAY FORECASTLondon03681111+1.5UV LOWOct 22 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.2Thu22.101Fri23.101Sat24.103Sun25.101Mon26.101Tue27.102Wed28.102Thu29.102Fri30.102Sat31.102Sun1.112Mon2.112Tue3.111Wed4.112Thu5.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com
☀️ UV INDEX · 16-DAY FORECASTLondon03681111+1.5UV LOWOct 22 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.2Thu22.101Fri23.101Sat24.103Sun25.101Mon26.101Tue27.102Wed28.102Thu29.102Fri30.102Sat31.102Sun1.112Mon2.112Tue3.111Wed4.112Thu5.110-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com

You can safely stay in the sun. Sunscreen only matters on very long exposure.

☀️ UV INDEX · 16-DAY FORECASTLondon03681111+1.5UV LOWOct 22 · daily maximumYou can safely stay in the sun. Sunscreen only matterson very long exposure.2Thu22.101Fri23.101Sat24.103Sun25.101Mon26.101Tue27.102Wed28.102Thu29.102Fri30.102Sat31.102Sun1.112Mon2.112Tue3.111Wed4.112Thu5.110-2 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.

London · October 22, 2026: UV index: 1.5 .

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 index1.50.51.22.50.50.82.31.81.72.12.1220.92—

AIR QUALITY QUESTIONS

London · air pollution - questions and answers

What do the latest air quality data show for London?

London - latest available concentrations (October 23, 2026, 02:00 local time): PM2.5: 2.1 µg/m³, PM10: 3.1 µg/m³, O₃: 58 µg/m³, NO₂: 7.7 µg/m³, SO₂: 0.4 µg/m³, CO: 144 µg/m³. These are hourly CAMS model values for a point representing the city.

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

The highest available daily mean PM2.5 was 18.7 µg/m³ (October 20, 2026). This comparison covers 7 days with data in the seven days before October 23, 2026. The day of the latest reading is excluded because it may be incomplete.

What period does the pollution history for London cover?

Available monthly means cover 2015-08 - 2020-05. The tables include PM2.5, PM10, O₃, NO₂, SO₂. 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 London 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 London?

For October 22, 2026, the forecast UV index is 1.5. The UV section also shows the following available days.

What wind speed is forecast for London?

For October 20, 2026, forecast wind speed is 13.5 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.