Fine particles
37.4µg/m³CAMS model • Open-Meteo
MacauAir 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.
Macau - average concentrations across available points: PM2.5: 37.4 µg/m³, PM10: 38.1 µg/m³, O₃: 64 µg/m³, NO₂: 22.9 µg/m³, SO₂: 9.8 µg/m³, CO: 535 µg/m³. Date range: October 23, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
Air quality questions →All cities · Macau
1 citiesPM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
AVERAGE ACROSS AVAILABLE COUNTRY POINTS
Latest concentrations · Macau
Particulate matter
38.1µg/m³Ozone
64µg/m³Nitrogen dioxide
22.9µg/m³Sulphur dioxide
9.8µg/m³Carbon monoxide
535µg/m³Average of the latest available hour at each model point. This is neither a population-weighted nor a daily average.
DAILY DATA · Macau
Macau - air pollution over recent days (2026-08-31 - 2026-10-22)
Averages across available points in the country. These are not population-weighted averages.
PM2.5Lowest 12.83 2026-09-03Highest 55.86 2026-09-072026-08-31 - 2026-10-22
PM10Lowest 12.89 2026-09-03Highest 56.25 2026-09-072026-08-31 - 2026-10-22
O₃Lowest 69.25 2026-10-20Highest 169.13 2026-09-072026-08-31 - 2026-10-22
NO₂Lowest 23.58 2026-10-22Highest 64.42 2026-10-212026-08-31 - 2026-10-22
SO₂Lowest 6.48 2026-09-03Highest 46.92 2026-10-202026-08-31 - 2026-10-22
COLowest 202.38 2026-10-18Highest 668.67 2026-09-052026-08-31 - 2026-10-22
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-22 | 2026-10-21 | 2026-10-20 | 2026-10-19 | 2026-10-18 | 2026-10-17 | 2026-10-16 | 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 | 20.13 | 31.98 | 21.45 | 26.36 | 19.45 | 19.75 | 27.37 | 55.86 | 35.33 | 44.74 | 20.3 | 12.83 | 17.8 | 15.78 | 23.95 |
| PM10 | 20.26 | 32.13 | 22.18 | 27.13 | 22.88 | 24.73 | 34.82 | 56.25 | 35.7 | 45.13 | 20.47 | 12.89 | 17.94 | 16.03 | 24.06 |
| O₃ | 86.54 | 80.08 | 69.25 | 91.17 | 89.67 | 92 | 97 | 169.13 | 86.58 | 84.71 | 73.38 | 78.71 | 94.58 | 71.25 | 78.5 |
| NO₂ | 23.58 | 64.42 | 56.16 | 60.37 | 33.68 | 36.2 | 37.74 | 43.87 | 54.68 | 60.8 | 32.71 | 26.6 | 26.08 | 31.66 | 43.25 |
| SO₂ | 10.23 | 19.14 | 46.92 | 45.08 | 32.8 | 31.27 | 36.17 | 32.67 | 40.96 | 31.37 | 7.69 | 6.48 | 7.2 | 12.8 | 17.84 |
| CO | 488.58 | 542.13 | 296.38 | 335.96 | 202.38 | 253.29 | 286.46 | 466.92 | 533.42 | 668.67 | 502.92 | 444.63 | 459.83 | 419.08 | 561.63 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
WEATHER & SURROUNDINGS
Macau · weather forecast
Daily maximum and minimum temperatures. Forecast point: 22.1667, 113.55.
Scroll the forecast to see the following days.
Macau · October 20, 2026: minimum temperature 26.2°C, maximum 30.2°C. Wind: 18.9 km/h. Humidity: 73%.
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 | 29.2 | 26.2 | 30.2 | 27.9 | 8.6 | 5.3 | 73 | 27 |
| 2026-10-21 | 30.6 | 27.3 | 32.4 | 28.2 | 0.1 | 5.3 | 67 | 33 |
| 2026-10-22 | 27.9 | 26.3 | 31.6 | 29 | 0.4 | 7.7 | 64 | 21 |
| 2026-10-23 | 29.6 | 25.4 | 32.1 | 29.3 | 3.2 | 8.6 | 50 | 46 |
| 2026-10-24 | 29.9 | 25.5 | 31.3 | 28.7 | 0.1 | 8.2 | 49 | 94 |
| 2026-10-25 | 28.9 | 26.3 | 30.9 | 28.1 | 13.8 | 6 | 56 | 79 |
| 2026-10-26 | 28 | 26.6 | 28.8 | 26.6 | 0.1 | 9.1 | 61 | 4 |
| 2026-10-27 | 25.8 | 25.1 | 27.6 | 25.1 | 0.4 | 9.5 | 68 | 100 |
| 2026-10-28 | 25.6 | 24.7 | 25.6 | 25.3 | 2.1 | 9 | 69 | 76 |
| 2026-10-29 | 25.7 | 25.1 | 25.9 | 25.8 | 1.3 | 8 | 68 | 57 |
| 2026-10-30 | 26.4 | 25.5 | 26.6 | 26.2 | 5.7 | 6.9 | 70 | 27 |
| 2026-10-31 | 26.6 | 25.8 | 26.7 | 26.1 | 1.3 | 9.1 | 69 | 91 |
| 2026-11-01 | 26 | 25.5 | 26.1 | 25.9 | 0.1 | 8.8 | 71 | 96 |
| 2026-11-02 | 27.2 | 25.1 | 27.9 | 25.1 | 2 | 10.1 | 68 | 17 |
| 2026-11-03 | 23 | 22.5 | 25.1 | 24.9 | 1.6 | 10.1 | 59 | 99 |
| 2026-11-04 | 24.3 | 23.2 | 24.7 | 24.7 | 0.6 | 7.3 | 58 | 19 |
| 2026-11-05 | 25.1 | 24.4 | 25.4 | 25.3 | 0.5 | 9.1 | 68 | 23 |
| 2026-11-06 | 25.8 | 24.9 | 26 | 25.4 | 0.2 | 9.3 | 72 | 44 |
UV index by day · Macau
Data for a country reference point. Local conditions may differ.
SPF 30-50, hat and sunglasses are a must. Better to stay in the shade 11:00-15:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Macau · October 22, 2026: UV index: 7.1 .
| 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 | 7.1 | 7.1 | 7.1 | 7.1 | 5.2 | 3.7 | 5.5 | 6.6 | 6.8 | 6.4 | 3.2 | 5.6 | 5.2 | 6.4 | 1.5 | — |
Sea temperature and waves · Macau
Data for a selected coastal point.
Scroll the forecast to see the following days.
Macau · October 22, 2026: Sea temperature (°C): 29.2 . Wave height (m): 0.2 .
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29.2 | 28.7 | 28.4 | 28.3 | 28.1 | 28 | 28 | 27.1 | 26.9 | — | — | — | — | — | — | — |
| Wave height (m) | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.3 | 0.6 | 0.4 | 0.3 | — | — | — | — | — | — | — |
Sea temperature throughout the year · Macau
Monthly climate values for a selected coastal area (°C).
17.2°Jan
18.9°Feb
20.9°Mar
25.5°Apr
28.2°May
30.7°Jun
32°Jul
31.9°Aug
30.6°Sep
27.7°Oct
23.5°Nov
19.5°Dec
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 17.2 | 18.9 | 20.9 | 25.5 | 28.2 | 30.7 | 32 | 31.9 | 30.6 | 27.7 | 23.5 | 19.5 |
AIR QUALITY QUESTIONS
Macau · air pollution - questions and answers
What do the latest air quality data show for Macau?
Macau - average concentrations across available points: PM2.5: 37.4 µg/m³, PM10: 38.1 µg/m³, O₃: 64 µg/m³, NO₂: 22.9 µg/m³, SO₂: 9.8 µg/m³, CO: 535 µg/m³. Date range: October 23, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
When was PM2.5 highest in Macau over the past week?
The highest available daily mean PM2.5 was 32 µg/m³ (October 21, 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.
Is the PM2.5 concentration for Macau 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 Macau?
For October 22, 2026, the forecast UV index is 7.1. The UV section also shows the following available days.
What wind speed is forecast for Macau?
For October 20, 2026, forecast wind speed is 18.9 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.