CAMS model • Open-Meteo

WarsawAir 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.

Warsaw - latest available concentrations (September 26, 2026, 03:00 local time): PM2.5: 13.9 µg/m³, PM10: 18.8 µg/m³, O₃: 31 µg/m³, NO₂: 13.3 µg/m³, SO₂: 2.8 µg/m³, CO: 222 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

Warsaw · Air pollutant concentrations

Data time: September 26, 2026 · 03:00 · local time

PM2.5

Fine particles

13.9µg/m³Fair · 1 hour

PM10

Particulate matter

18.8µg/m³Fair · 1 hour

O₃

Ozone

31µg/m³Good · 1 hour

NO₂

Nitrogen dioxide

13.3µg/m³Fair · 1 hour

SO₂

Sulphur dioxide

2.8µg/m³Good · 1 hour

Carbon monoxide

222µg/m³

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

DAILY DATA · Warsaw

Warsaw - air pollution over recent days (2026-08-31 - 2026-09-25)

Concentrations of all available pollutants for this city.

PM2.5Lowest 3.79 2026-09-05Highest 16.49 2026-09-242026-08-31 - 2026-09-25

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

Warsaw · daily averages · µg/m³
Pollutant	2026-09-25	2026-09-24	2026-09-23	2026-09-22	2026-09-21	2026-09-20	2026-09-19	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	12.81	16.49	7.25	6.7	5.36	9	12.32	10.05	4.39	3.79	8.36	13.33	9.3	8	9.02
PM10	15.85	19.8	9.61	8.68	8.25	14.48	16.93	16.84	7.82	6.65	11.85	19.02	13.33	11.01	14.19
O₃	43.58	32.63	48	43.54	54.25	59.21	58	52.21	57.46	61.92	59.25	56.29	60.67	59.63	52.17
NO₂	15.94	21.54	9.8	9.25	7.12	9.07	14	14.05	4.18	4.31	11.24	20.05	12.1	10.92	16.76
SO₂	4.45	6.23	3.87	3.38	2.43	3.33	4.09	4.81	1.64	1.42	3.08	5.57	3.98	3.3	4.56
CO	234.96	257.04	212.13	206.21	196.33	201.83	220.88	197.29	158.29	144	166.96	213.08	196.17	182.75	189.38

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 ↗

Environment and quality of life ratings · Warsaw

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

Indicator	Warsaw	Czech Republic	Slovakia	Lithuania	Hungary	Austria
Green and Parks in the City	67%	77%	58%	86%	59%	78%
particulate matter PM2.5 (µg/m³)	25	—	—	—	—	—
Pleasure of spending time in the city	47%	77%	73%	83%	65%	84%
particulate matter PM10 (µg/m³)	31	—	—	—	—	—
Air Pollution	72%	35%	35%	26%	49%	21%
Garbage Disposal	61%	74%	65%	71%	65%	84%
Availability and quality of drinking water	69%	84%	87%	91%	80%	91%
Cleanliness and tidiness	62%	65%	57%	78%	52%	82%
Noise and Light pollution	56%	44%	41%	30%	45%	34%
Water Pollution	40%	28%	27%	24%	30%	14%

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

CityMonthHistorical period

Warsaw · September

Mean daily maximum21.5°C

Mean daily minimum10.6°C

Days with rainfall ≥1 mm30.3%

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

0.8°

Jan

3.4°

Feb

8.5°

Mar

14.2°

Apr

19.2°

May

24.6°

Jun

25.6°

Jul

26.3°

Aug

21.5°

Sep

14.4°

Oct

6.5°

Nov

2°

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

Month	Mean daily maximum °C	Mean daily minimum °C	Days with rainfall ≥1 mm
January	0.8	-4.5	38.7%
February	3.4	-3.2	37.5%
March	8.5	-0.7	29%
April	14.2	3.4	33%
May	19.2	8.1	35.8%
June	24.6	13.6	37.7%
July	25.6	15	46.5%
August	26.3	14.9	33.2%
September	21.5	10.6	30.3%
October	14.4	5.6	37.4%
November	6.5	1	28.3%
December	2	-2.5	37.7%

NO₂ 10.5O₃ 29

September 26, 202603:00

Poland · air quality in other cities

Łódź Krakow Wrocław Poznań Gdańsk Szczecin Bydgoszcz Lublin Katowice Białystok Gdynia Częstochowa Radom Toruń Kielce Gliwice Bielsko-Biala Olsztyn Rzeszów

WEATHER & SURROUNDINGS

Warsaw · weather forecast

Daily maximum and minimum temperatures. Forecast point: 52.2297, 21.0122.

Scroll the forecast to see the following days.

Warsaw · September 23, 2026: minimum temperature 10.7°C, maximum 18.1°C. Wind: 16 km/h. Humidity: 72%.

Full forecast: temperature, rainfall, wind and humidity

Date	Day °C	Min °C	Max °C	Night °C	Rain mm	Wind m/s	Humidity %	Clouds %
2026-09-23	15.1	10.7	18.1	11.4	1.4	4.5	72	93
2026-09-24	12.2	7.6	16.3	11.5	0.5	3.9	86	100
2026-09-25	17.5	10.9	17.5	10.9	1.9	3.3	64	100
2026-09-26	17.6	10.4	17.6	10.4	0.3	3	68	100
2026-09-27	17.6	8.4	19.1	12.6	0.7	2.6	62	2
2026-09-28	16.2	9.9	19.3	12.9	2.2	3	71	23
2026-09-29	16.4	10.5	19.4	13	0.1	3.6	71	29
2026-09-30	16.8	10.4	20.3	15.3	0.1	4.5	70	17
2026-10-01	17.9	12.4	20.4	14	0.4	5.5	47	15
2026-10-02	16.8	11.2	19.5	13.6	2.9	4.8	41	20
2026-10-03	16.5	10.9	19.9	14.2	0.1	5	38	90
2026-10-04	17.5	12	20	14.7	0.4	3.6	41	57
2026-10-05	14	12.5	17.3	12.6	7.9	3	78	100
2026-10-06	16	10.5	19	13.4	9.9	2.4	47	34
2026-10-07	16.8	11.2	19.3	14.3	0.3	3.7	46	5
2026-10-08	17.3	11.9	20.8	14.9	0.1	4.7	36	100
2026-10-09	18.4	12.7	21.4	16.3	0.2	6	36	3
2026-10-10	18.8	13.5	22.1	22.1	—	5.5	39	6

UV index by day · Warsaw

City data.

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

0-2 low3-5 moderate6-7 high8-10 very high11+ extreme

Scroll the forecast to see the following days.

Warsaw · September 25, 2026: UV index: 2.3 .

Indicator	2026-09-25	2026-09-26	2026-09-27	2026-09-28	2026-09-29	2026-09-30	2026-10-01	2026-10-02	2026-10-03	2026-10-04	2026-10-05	2026-10-06	2026-10-07	2026-10-08	2026-10-09	2026-10-10
UV index	2.3	3.6	3.9	3.9	3.8	3.6	3.5	3.5	3.1	1.2	2.9	3.2	3.2	2.8	2.6	—

Open-Meteo ↗

AIR QUALITY QUESTIONS

Warsaw · air pollution - questions and answers

What do the latest air quality data show for Warsaw?

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

The highest available daily mean PM2.5 was 16.5 µg/m³ (September 24, 2026). This comparison covers 7 days with data in the seven days before September 26, 2026. The day of the latest reading is excluded because it may be incomplete.

Is the PM2.5 concentration for Warsaw 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 Warsaw?

For September 25, 2026, the forecast UV index is 2.3. The UV section also shows the following available days.

What wind speed is forecast for Warsaw?

For September 23, 2026, forecast wind speed is 16 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.

Open-Meteo / CAMS ↗NASA POWER ↗