Fine particles
19.9µg/m³CAMS model • Open-Meteo
PortugalAir 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.
Portugal - average concentrations across available points: PM2.5: 19.9 µg/m³, PM10: 24.5 µg/m³, O₃: 50.8 µg/m³, NO₂: 17.7 µg/m³, SO₂: 2.3 µg/m³, CO: 171 µg/m³. Date range: October 15, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
Lowest PM2.5: Funchal Municipality (4.3 µg/m³). Highest PM2.5: Porto (36.9 µg/m³). This comparison covers 6 cities on October 15, 2026 using their latest available hourly values. Reading times may differ; this is not an annual-average ranking.
Air quality questions →All cities · Portugal
6 citiesPortugal↗
Lisbon
PM2.57.4
PM1010.8
µg/m³
PM2.5 · FairNO₂ 13.6O₃ 56
October 15, 202602:00
Portugal↗
Porto
PM2.536.9
PM1042.1
µg/m³
PM2.5 · ModerateNO₂ 40.7O₃ 34
October 15, 202602:00
Portugal↗
Braga
PM2.533.6
PM1038.2
µg/m³
PM2.5 · ModerateNO₂ 16.3O₃ 46
October 15, 202602:00
Portugal↗
Setúbal
PM2.59.4
PM1013.1
µg/m³
PM2.5 · FairNO₂ 13.5O₃ 52
October 15, 202602:00
Portugal↗
Coimbra
PM2.527.6
PM1032.2
µg/m³
PM2.5 · ModerateNO₂ 20.1O₃ 44
October 15, 202602:00
Portugal↗
Funchal Municipality
PM2.54.3
PM1010.6
µg/m³
PM2.5 · GoodNO₂ 1.9O₃ 73
October 15, 202602:00
PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
AVERAGE ACROSS AVAILABLE COUNTRY POINTS
Latest concentrations · Portugal
Particulate matter
24.5µg/m³Ozone
50.8µg/m³Nitrogen dioxide
17.7µg/m³Sulphur dioxide
2.3µg/m³Carbon monoxide
171µg/m³Average of the latest available hour at each model point. This is neither a population-weighted nor a daily average.
DAILY DATA · Portugal
Portugal - air pollution over recent days (2026-08-31 - 2026-10-14)
Averages across available points in the country. These are not population-weighted averages.
PM2.5Lowest 4.76 2026-10-08Highest 14.8 2026-09-042026-08-31 - 2026-10-14
PM10Lowest 8.04 2026-10-08Highest 27.31 2026-09-052026-08-31 - 2026-10-14
O₃Lowest 49.85 2026-10-11Highest 78.21 2026-09-032026-08-31 - 2026-10-14
NO₂Lowest 5.47 2026-08-31Highest 17.4 2026-09-042026-08-31 - 2026-10-14
SO₂Lowest 1.03 2026-08-31Highest 2.48 2026-09-042026-08-31 - 2026-10-14
COLowest 116.22 2026-09-07Highest 172.07 2026-09-032026-08-31 - 2026-10-14
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-14 | 2026-10-13 | 2026-10-12 | 2026-10-11 | 2026-10-10 | 2026-10-09 | 2026-10-08 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 13.98 | 9.72 | 7.2 | 6.96 | 7.86 | 4.93 | 4.76 | 6.98 | 13.02 | 14.65 | 14.8 | 11.77 | 9.76 | 7.98 | 6.12 |
| PM10 | 17.72 | 14.25 | 10.95 | 10.35 | 13.08 | 9.54 | 8.04 | 12.53 | 24.11 | 27.31 | 22.47 | 17.45 | 15.21 | 13.62 | 10.42 |
| O₃ | 55.65 | 60.05 | 52.64 | 49.85 | 55.4 | 66.78 | 56.47 | 53.33 | 61.03 | 69.87 | 72.63 | 78.21 | 67.53 | 65.05 | 62.07 |
| NO₂ | 16.58 | 12.15 | 11.04 | 8.76 | 10.05 | 6.97 | 7.67 | 6.4 | 8.99 | 10.9 | 17.4 | 13.44 | 9.51 | 7.31 | 5.47 |
| SO₂ | 2.39 | 1.7 | 1.66 | 1.27 | 1.64 | 1.06 | 1.05 | 1.14 | 1.45 | 1.92 | 2.48 | 1.96 | 1.68 | 1.28 | 1.03 |
| CO | 163.64 | 141.83 | 138.67 | 142.3 | 161.68 | 149.26 | 146.08 | 116.22 | 133.04 | 150.13 | 171.84 | 172.07 | 157.46 | 148.37 | 146.58 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Portugal
Portugal - air pollution history (2017-09 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 3.1 2019-11Highest 12.4 2017-102017-09 - 2020-05
PM10Lowest 5.98 2017-11Highest 24 2017-102017-09 - 2020-05
O₃Lowest 39.6 2018-12Highest 78.8 2017-112017-09 - 2020-05
NO₂Lowest 0.38 2017-11Highest 18.7 2017-102017-09 - 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 3.41 | 3.7 | 6.46 | 7.71 | 7.36 | 4.46 | 3.1 | 3.56 | 3.97 | 3.62 | 4.22 | 3.41 | 3.42 | 3.67 | 4.4 | 5.8 | 4.86 | 5.43 | 3.41 | 5.04 | 6.33 | 5.28 | 4.76 | 3.28 | 4.99 | 4.5 | 4.7 | 7.09 | 7 | 4.35 | 7.31 | 12.4 | 6.1 |
| PM10 | 11.9 | 9.77 | 15.7 | 17 | 15.6 | 11.6 | 10.2 | 9.99 | 13.3 | 10.6 | 12.9 | 9.22 | 10.8 | 10 | 12.6 | 15.6 | 10.5 | 12.8 | 9.72 | 11.1 | 14.8 | 16.2 | 10.9 | 7.99 | 11.9 | 12.6 | 10.4 | 14.2 | 16.4 | 8.34 | 5.98 | 24 | 13.9 |
| O₃ | 65.9 | 68.5 | 65.7 | 48.5 | 48.2 | 47 | 49.5 | 49.3 | 62.5 | 57.9 | 59.6 | 67.6 | 69.1 | 67.7 | 66.4 | 56.1 | 50.3 | 39.6 | 48.9 | 58.9 | 68.3 | 64.7 | 61.7 | 65.1 | 78.4 | 73.6 | 73.3 | 59.8 | 44.6 | 58.2 | 78.8 | 49.8 | 57.6 |
| NO₂ | 5.18 | 4.85 | 8.04 | 12 | 13.7 | 13.6 | 11.2 | 11.3 | 11.3 | 8.34 | 8.49 | 8.69 | 8.26 | 12 | 14.5 | 16 | 14.9 | 15.6 | 11.1 | 11.2 | 11 | 9.37 | 6.48 | 5.95 | 8.04 | 8.97 | 10.9 | 15.4 | 16.9 | 1.78 | 0.38 | 18.7 | 13.1 |
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 · Portugal
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Portugal | Morocco | Andorra | Spain | France | Western Sahara |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 73% | 41% | 69% | 70% | 61% | — |
| Pleasure of spending time in the city | 83% | 41% | 84% | 76% | 68% | — |
| Air Pollution | 23% | 63% | 29% | 30% | 36% | — |
| Garbage Disposal | 71% | 33% | 89% | 73% | 59% | — |
| Availability and quality of drinking water | 83% | 55% | 100% | 74% | 73% | — |
| Cleanliness and tidiness | 67% | 39% | 75% | 66% | 48% | — |
| Noise and Light pollution | 36% | 55% | 29% | 46% | 54% | — |
| Water Pollution | 28% | 54% | 19% | 29% | 39% | — |
WEATHER & SURROUNDINGS
Portugal · weather forecast
Daily maximum and minimum temperatures. Forecast point: 38.7223, -9.1393.
Scroll the forecast to see the following days.
Portugal · October 12, 2026: minimum temperature 16.2°C, maximum 24°C. Wind: 15.6 km/h. Humidity: 52%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-10-12 | 22.3 | 16.2 | 24 | 19.3 | 5.9 | 4.3 | 52 | 98 |
| 2026-10-13 | 23.3 | 16.4 | 24.5 | 18.2 | 3.7 | 4.1 | 50 | 61 |
| 2026-10-14 | 28.1 | 16.7 | 28.5 | 20.3 | 20.8 | 4 | 31 | 2 |
| 2026-10-15 | 26.9 | 18.6 | 29.1 | 20.5 | 1.4 | 3.3 | 42 | 31 |
| 2026-10-16 | 28.5 | 16.9 | 28.9 | 16.9 | 4.2 | 5 | 34 | 30 |
| 2026-10-17 | 23.5 | 16.7 | 24.1 | 19.1 | 9.5 | 5.3 | 57 | 7 |
| 2026-10-18 | 20.2 | 15.1 | 22.1 | 15.3 | — | 5 | 29 | 9 |
| 2026-10-19 | 19.7 | 11.9 | 21.7 | 18.7 | 0.1 | 4.4 | 33 | 36 |
| 2026-10-20 | 20.4 | 16.5 | 20.6 | 18.1 | 0.7 | 4.9 | 61 | 99 |
| 2026-10-21 | 20.6 | 16.2 | 20.7 | 17.4 | 0.6 | 3.9 | 63 | 36 |
| 2026-10-22 | 21.6 | 15.3 | 22.3 | 17 | 5.1 | 5.5 | 47 | 7 |
| 2026-10-23 | 22.9 | 15.4 | 25.7 | 19.5 | 54.4 | 3.1 | 46 | 95 |
| 2026-10-24 | 24.2 | 17.1 | 25.5 | 20.4 | — | 2.8 | 38 | 56 |
| 2026-10-25 | 24.3 | 17.1 | 24.4 | 18.2 | — | 5.5 | 36 | 84 |
| 2026-10-26 | 24.5 | 16 | 25.4 | 19.6 | — | 4.2 | 40 | 44 |
| 2026-10-27 | 23 | 16.4 | 25.3 | 19.9 | — | 4.6 | 21 | 1 |
| 2026-10-28 | 22.1 | 14.6 | 24 | 18.7 | — | 6.2 | 22 | 82 |
| 2026-10-29 | 21.5 | 14.2 | 21.5 | 21.5 | — | 4.6 | 30 | 21 |
UV index by day · Portugal
Data for a country reference point. Local conditions may differ.
Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Portugal · October 14, 2026: UV index: 5.2 .
| Indicator | 2026-10-14 | 2026-10-15 | 2026-10-16 | 2026-10-17 | 2026-10-18 | 2026-10-19 | 2026-10-20 | 2026-10-21 | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 5.2 | 5 | 4.9 | 5 | 5 | 4.5 | 4.5 | 3.9 | 4.4 | 4.2 | 3.9 | 1 | 3.6 | 0.6 | 4.2 | — |
Sea temperature and waves · Portugal
Data for a selected coastal point.
Scroll the forecast to see the following days.
Portugal · October 14, 2026: Sea temperature (°C): 19.3 . Wave height (m): 0.7 .
| Indicator | 2026-10-14 | 2026-10-15 | 2026-10-16 | 2026-10-17 | 2026-10-18 | 2026-10-19 | 2026-10-20 | 2026-10-21 | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19.3 | 19.4 | 19.4 | 19.2 | 18.8 | 18.6 | 18.4 | 18.2 | 18.1 | — | — | — | — | — | — | — |
| Wave height (m) | 0.7 | 0.9 | 1 | 0.9 | 0.7 | 0.5 | 0.7 | 0.5 | 0.4 | — | — | — | — | — | — | — |
Sea temperature throughout the year · Portugal
Monthly climate values for a selected coastal area (°C).
15.1°Jan
14.9°Feb
15.2°Mar
16.9°Apr
17.8°May
19.5°Jun
19.8°Jul
19.7°Aug
18.7°Sep
19°Oct
17.7°Nov
15.7°Dec
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 15.1 | 14.9 | 15.2 | 16.9 | 17.8 | 19.5 | 19.8 | 19.7 | 18.7 | 19 | 17.7 | 15.7 |
AIR QUALITY QUESTIONS
Portugal · air pollution - questions and answers
What do the latest air quality data show for Portugal?
Portugal - average concentrations across available points: PM2.5: 19.9 µg/m³, PM10: 24.5 µg/m³, O₃: 50.8 µg/m³, NO₂: 17.7 µg/m³, SO₂: 2.3 µg/m³, CO: 171 µg/m³. Date range: October 15, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
When was PM2.5 highest in Portugal over the past week?
The highest available daily mean PM2.5 was 14 µg/m³ (October 14, 2026). This comparison covers 7 days with data in the seven days before October 15, 2026. The day of the latest reading is excluded because it may be incomplete.
Which cities in Portugal have the cleanest and most polluted air by PM2.5?
Lowest PM2.5: Funchal Municipality (4.3 µg/m³). Highest PM2.5: Porto (36.9 µg/m³). This comparison covers 6 cities on October 15, 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 Portugal cover?
Available monthly means cover 2017-09 - 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 Portugal 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 Portugal?
For October 14, 2026, the forecast UV index is 5.2. The UV section also shows the following available days.
What wind speed is forecast for Portugal?
For October 12, 2026, forecast wind speed is 15.6 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.