Székesfehérvár air quality now

Hungary · The summary is refreshed every 15 minutes.

October 22

The air is clean now

Székesfehérvár

12°C

Cloudy

7AQI

1020hPa

Atmospheric
pressure

68%

Humidity

Székesfehérvár, October 21, 2026: daily mean PM2.5 4 µg/m³ (9 sensors), level “Low” — as in the Atmy Data Hub. Now (20:00 local time): 1.3 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON

Right now in Székesfehérvár, PM2.5 averages 1.3 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 9 sensors on the Atmy network, readings from 19:55–19:57 local time (17:55–17:57 UTC), summary prepared at 20:00 local time. Median: 0.7 µg/m³; range across sensors: 0.0–6.6 µg/m³.

In Székesfehérvár the air is good right now (approximate, US EPA scale). From 07:00 to 20:00 local time the city mean PM2.5 stayed roughly level: from 0.6 to 1.3 µg/m³.

The weather data do not point to a clear reason for this level.

Weather now: cloudy, 12°C, wind 4 m/s, humidity 68%. By 20:00 the wind is expected to drop to 2 m/s, and particles may build up. By 07:00 the temperature will be about 5°C.

Written automatically at 20:00 local time (18:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

14 km/h

Wind, WNW

3.6 mm

Precipitation today

Székesfehérvár: air quality for the completed day

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · October 21, 2026 · 00:00–24:00 UTC

4 µg/m³ Low

Daily mean PM2.5 on October 21, 2026 (00:00–24:00 UTC): 4 µg/m³ from 9 sensors that passed the quality check — the same value as in the Atmy Data Hub.

No. 12 of 12 cities in Hungary and No. 247 of 297 worldwide, from the most polluted.

LowModerateElevatedHighVery highExtremely high

Székesfehérvár: PM2.5 by month

Metric: PM2.5, µg/m³ · Color scale: EPA AQI

Mean
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
This month
6
4
10
11
15
8
8
4
2
3
3
2
2
3

Monthly means of quality-checked sensors, as in the Data Hub trend; the current month is still incomplete, “-” means no data.

Pollution accumulation index now

21%An estimate of weather conditions · not a PM2.5 forecast

Now2117
20.0004.0011.0019.00

Pollution accumulation forecast

Today — October 22

15°/9°

Index by time of day

35/100Moderate

  1. 35/100Night
  2. 23/100Morning
  3. 6/100Day
  4. 26/100Evening

Friday — October 23

15°/5°

Index by time of day

58/100Moderate

  1. 58/100Night
  2. 45/100Morning
  3. 8/100Day
  4. 24/100Evening

Saturday — October 24

10°/7°

Index by time of day

51/100Moderate

  1. 51/100Night
  2. 34/100Morning
  3. 9/100Day
  4. 18/100Evening

Sunday — October 25

12°/4°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 41/100Morning
  3. 7/100Day
  4. 16/100Evening

Monday — October 26

15°/6°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 42/100Morning
  3. 10/100Day
  4. 27/100Evening

Tuesday — October 27

15°/3°

Index by time of day

60/100Moderate

  1. 60/100Night
  2. 45/100Morning
  3. 10/100Day
  4. 25/100Evening

Forecast of conditions that trap pollution near the surface

Weather

12°

Cloudy. Feels like 9°C

  1. MorningRain11°C87%
  2. DayClear13°C69%
  3. EveningPartly cloudy10°C77%

Wind

14km/hWind from the WNW

36km/hWind gusts

Wind force: 3

Gusts up to 36 km/h are expected.

10-day weather forecast for Székesfehérvár

Hungary

  1. TodayOct 22Rain15°C9°C
  2. FriOct 23Cloudy15°C5°C
  3. SatOct 24Rain10°C7°C
  4. SunOct 25Rain12°C4°C
  5. MonOct 26Rain15°C6°C
  6. TueOct 27Cloudy15°C3°C
  7. WedOct 28Partly cloudy17°C5°C
  8. ThuOct 29Cloudy14°C8°C
  9. FriOct 30Cloudy14°C5°C
  10. SatOct 31Cloudy13°C7°C

Where in Székesfehérvár is the air worse?

See all sensors

Highest current reading: 6.6 µg/m³ (SC #51286). Lowest: 0.0 µg/m³ (SC #74217). The list shows every sensor, highest first.

  1. SC #51286 →7 µg/m³
  2. SC #90538 →2 µg/m³
  3. SC #74947 →1 µg/m³
  4. SC #67051 →1 µg/m³
  5. SC #75009 →1 µg/m³
  6. SC #93634 →1 µg/m³
  7. SC #87447 →0 µg/m³
  8. SC #85221 →0 µg/m³
  9. SC #74217 →0 µg/m³

Source: atmy.ai monitoring network

Who provides the data

Sensors in the summary by network: Sensor.Community — 9 sensors.

Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.

Hungary: sensors in total

126

  1. BudapestHungary

    41

  2. SzékesfehérvárHungary

    9

  3. DebrecenHungary

    9

Cities with the most sensors

All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.

Air quality calendar: Székesfehérvár

Daily mean PM2.5 of the city sensors, µg/m³

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

Widget for your site

A card with the current PM2.5 in Székesfehérvár: it is refreshed every 15 minutes and links to this page. Paste the code into your site.

Air quality in Székesfehérvár now — Atmy

Hungary · City ranking · All pilot cities

Questions

What was the air quality in Székesfehérvár over the last completed day?

Daily mean PM2.5 on October 21, 2026 (00:00–24:00 UTC): 4 µg/m³ from 9 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 12 of 12 cities in Hungary and No. 247 of 297 worldwide, from the most polluted.

What is the air quality in Székesfehérvár right now?

Right now in Székesfehérvár, PM2.5 averages 1.3 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 9 sensors on the Atmy network, readings from 19:55–19:57 local time (17:55–17:57 UTC), summary prepared at 20:00 local time. Median: 0.7 µg/m³; range across sensors: 0.0–6.6 µg/m³.

Is it safe to be outdoors in Székesfehérvár now?

The current level is “good” (US EPA scale, approximate). Air quality is satisfactory; no restrictions are recommended. This is the standard guidance of the scale, not medical advice.

Where in Székesfehérvár is the air worse?

Highest current reading: 6.6 µg/m³ (SC #51286). Lowest: 0.0 µg/m³ (SC #74217). The list shows every sensor, highest first.

Where do these data come from?

From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.

How often is this page updated?

The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.

Is the air in Székesfehérvár polluted?

Over the last 365 days with data, the mean daily PM2.5 in Székesfehérvár was 6.0 µg/m³ — 1.2 times the WHO annual guideline (5 µg/m³). Over the last 30 days: 2.7 µg/m³. From Atmy's archive of daily city means.

When is the air in Székesfehérvár cleanest?

In Atmy's daily archive, the cleanest month of the last year was September 2026: 1.9 µg/m³ on average.

When is the air in Székesfehérvár most polluted?

The most polluted month of the last year was January 2026: 15.4 µg/m³ on average.

Is the air in Székesfehérvár worse in the heating season?

From November to March the mean daily PM2.5 was 10.5 µg/m³, from June to August 2.7 µg/m³ (last 365 days).

Data

Where do these data come from?

The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.

“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.

Source: public Atmy monitoring data. Methodology and data sources · Data terms