CAMS model • Open-Meteo

PoznańAir 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.

Poznań - latest available concentrations (September 27, 2026, 03:00 local time): PM2.5: 29 µg/m³, PM10: 36.4 µg/m³, O₃: 33 µg/m³, NO₂: 13.8 µg/m³, SO₂: 3.7 µg/m³, CO: 260 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

Poznań · Air pollutant concentrations

Data time: September 27, 2026 · 03:00 · local time

PM2.5

Fine particles

29µg/m³Moderate · 1 hour

PM10

Particulate matter

36.4µg/m³Fair · 1 hour

O₃

Ozone

33µg/m³Good · 1 hour

NO₂

Nitrogen dioxide

13.8µg/m³Fair · 1 hour

SO₂

Sulphur dioxide

3.7µg/m³Good · 1 hour

Carbon monoxide

260µg/m³

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

DAILY DATA · Poznań

Poznań - air pollution over recent days (2026-08-31 - 2026-09-26)

Concentrations of all available pollutants for this city.

PM2.5Lowest 3.44 2026-09-05Highest 17.06 2026-09-262026-08-31 - 2026-09-26

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

Poznań · daily averages · µg/m³
Pollutant	2026-09-26	2026-09-25	2026-09-24	2026-09-23	2026-09-22	2026-09-21	2026-09-20	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	17.06	8.13	10.18	6.25	3.78	4.02	6.9	8.69	4.37	3.44	4.96	9.48	6.88	5.12	6.45
PM10	23.02	11.5	12.74	8.31	6.11	8.13	10.66	15.31	9.25	6.9	7.29	14.58	11.09	7.41	9.66
O₃	49.83	43.92	41.33	43.71	50.63	61.67	59.08	53.33	59.54	61.54	56.67	63.58	60.75	64.04	55.54
NO₂	9.91	7.13	9.62	6.09	3.12	2.58	4.42	8.29	2.64	2.72	4.55	7.38	6.58	5.04	7.92
SO₂	3.54	1.93	2.84	1.83	0.95	0.9	1.64	2.68	1	0.85	1.4	2.45	1.97	1.63	2.04
CO	230.92	202.13	218.71	199.42	191	183.42	184.08	180.88	153.54	143.25	135.42	175.92	175.13	169.75	156

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 · Poznań

Poznań - air pollution history (2018-12 - 2020-05)

Compare monthly particle and gas concentrations in the available archive.

NO₂Lowest 13.6 2019-07Highest 47.8 2019-022018-12 - 2020-05

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

Poznań · monthly averages · µg/m³
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
NO₂	15.3	17.9	19.6	21.2	25.7	26.7	22.6	29.6	21.2	17.7	13.6	14.2	17.5	17.5	31.8	47.8	36.7	20.9
SO₂	—	—	—	—	—	4.17	3.78	2.36	1.1	1.49	1.2	0.76	0.79	2.15	2.65	4.68	3.56	3.65
CO	414	553	613	505	599	468	325	521	441	411	377	482	514	460	1	1	738	654

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 1

AIR QUALITY ARCHIVE · Poznan-Polanka

Poznan-Polanka

Station code: Poznan-Polanka

Monthly monitoring station data.

NO₂Lowest 13.6 2019-07Highest 47.8 2019-022018-12 - 2020-05

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

Poznan-Polanka · monthly averages · µg/m³
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
NO₂	15.3	17.9	19.6	21.2	25.7	26.7	22.6	29.6	21.2	17.7	13.6	14.2	17.5	17.5	31.8	47.8	36.7	20.9
SO₂	—	—	—	—	—	4.17	3.78	2.36	1.1	1.49	1.2	0.76	0.79	2.15	2.65	4.68	3.56	3.65
CO	414	553	613	505	599	468	325	521	441	411	377	482	514	460	1	1	738	654

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 ↗GIOS

Environment and quality of life ratings · Poznań

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

Indicator	Poznań	Czech Republic	Slovakia	Lithuania	Hungary	Austria
Green and Parks in the City	56%	77%	58%	86%	59%	78%
particulate matter PM2.5 (µg/m³)	24	—	—	—	—	—
Pleasure of spending time in the city	44%	77%	73%	83%	65%	84%
particulate matter PM10 (µg/m³)	31	—	—	—	—	—
Air Pollution	70%	35%	35%	26%	49%	21%
Garbage Disposal	55%	74%	65%	71%	65%	84%
Availability and quality of drinking water	58%	84%	87%	91%	80%	91%
Cleanliness and tidiness	55%	65%	57%	78%	52%	82%
Noise and Light pollution	55%	44%	41%	30%	45%	34%
Water Pollution	44%	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

Poznań · September

Mean daily maximum21.4°C

Mean daily minimum10.9°C

Days with rainfall ≥1 mm26%

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

2°

Jan

4.7°

Feb

9.3°

Mar

14.4°

Apr

18.9°

May

24.2°

Jun

25°

Jul

25.4°

Aug

21.4°

Sep

14.8°

Oct

7.3°

Nov

3.3°

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

Month	Mean daily maximum °C	Mean daily minimum °C	Days with rainfall ≥1 mm
January	2	-3.1	43.9%
February	4.7	-2.1	37.8%
March	9.3	0	31%
April	14.4	3.7	30.7%
May	18.9	8.1	35.5%
June	24.2	13.5	42.7%
July	25	14.8	45.5%
August	25.4	14.9	38.1%
September	21.4	10.9	26%
October	14.8	6.5	34.5%
November	7.3	1.8	29.3%
December	3.3	-1.1	33.5%

NO₂ 6.2O₃ 45

September 27, 202603:00

Poland · air quality in other cities

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WEATHER & SURROUNDINGS

Poznań · weather forecast

Daily maximum and minimum temperatures. Forecast point: 52.4069, 16.9299.

Scroll the forecast to see the following days.

Poznań · September 24, 2026: minimum temperature 10.6°C, maximum 17.1°C. Wind: 10.7 km/h. Humidity: 74%.

Full forecast: temperature, rainfall, wind and humidity

Date	Day °C	Min °C	Max °C	Night °C	Rain mm	Wind m/s	Humidity %	Clouds %
2026-09-24	16.1	10.6	17.1	11.5	0.1	3	74	99
2026-09-25	15.9	11.3	16.8	12.2	0.1	3.7	73	99
2026-09-26	18	8.8	20.1	13.2	0.3	2.7	62	23
2026-09-27	19.8	10.2	21.5	13.3	0.6	3.6	60	100
2026-09-28	18.4	10.1	21.1	14.3	0.2	4	65	7
2026-09-29	16.9	11.4	21.2	14.3	9.8	3.8	72	37
2026-09-30	15.7	11	19.5	14.8	1.7	3.8	73	100
2026-10-01	16.3	11.8	19.9	14.2	4.3	4.1	71	78
2026-10-02	17.8	12.1	20.6	14.6	—	3.6	40	100
2026-10-03	15.1	12.3	18.2	12.3	0.9	5.8	71	100
2026-10-04	11.4	8.8	15	9	0.6	6.9	72	93
2026-10-05	10.5	9.7	12.4	10.1	0.3	4.4	70	100
2026-10-06	10.2	6.9	12	6.9	1.4	6.1	77	75
2026-10-07	10.6	5.1	10.7	8.8	3.6	3.3	54	53
2026-10-08	11	8.7	12.5	10.4	8	3.5	68	96
2026-10-09	11.3	6.8	13.6	11.2	2.1	4.5	51	100
2026-10-10	12.3	7.5	13.4	7.5	0.3	4.2	71	54
2026-10-11	12.1	6.5	14.8	11.7	—	5.1	64	85

UV index by day · Poznań

City data.

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.

Poznań · September 26, 2026: UV index: 4 .

Indicator	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	2026-10-11
UV index	4	3.7	3.9	3.8	3.5	3.5	3	2.7	2	1.4	2.6	1.8	2.2	2.8	2.1	—

Open-Meteo ↗

AIR QUALITY QUESTIONS

Poznań · air pollution - questions and answers

What do the latest air quality data show for Poznań?

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

The highest available daily mean PM2.5 was 17.1 µg/m³ (September 26, 2026). This comparison covers 7 days with data in the seven days before September 27, 2026. The day of the latest reading is excluded because it may be incomplete.

What period does the pollution history for Poznań cover?

Available monthly means cover 2018-12 - 2020-05. The tables include NO₂, 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 Poznań 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 Poznań?

For September 26, 2026, the forecast UV index is 4. The UV section also shows the following available days.

What wind speed is forecast for Poznań?

For September 24, 2026, forecast wind speed is 10.7 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 ↗