Hradec Králové air quality now

Czechia · The summary is refreshed every 15 minutes.

October 22

The air is clean now

Hradec Králové

11°C

Partly cloudy

45AQI

1019hPa

Atmospheric
pressure

58%

Humidity

Hradec Králové, October 21, 2026: daily mean PM2.5 8 µg/m³ (6 sensors), level “Low” — as in the Atmy Data Hub. Now (20:00 local time): 8.1 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON

Right now in Hradec Králové, PM2.5 averages 8.1 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 6 sensors on the Atmy network, readings from 19:47–19:57 local time (17:47–17:57 UTC), summary prepared at 20:00 local time. Median: 6.4 µg/m³; range across sensors: 4.0–15.4 µg/m³.

In Hradec Králové the air is good right now (approximate, US EPA scale). From 07:00 to 20:00 local time the city mean PM2.5 rose from 3.2 to 8.1 µg/m³.

Light wind (2 m/s) in the evening or at night, as the air cools, possibly traps particles near the ground (a temperature inversion).

Weather now: partly cloudy, 11°C, wind 2 m/s, humidity 58%. No major change in the wind is expected in the coming hours. By 07:00 the temperature will be about 3°C.

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

7 km/h

Wind, WSW

2.6 mm

Precipitation today

Hradec Králové: air quality for the completed day

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

8 µg/m³ Low

Daily mean PM2.5 on October 21, 2026 (00:00–24:00 UTC): 8 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub.

No. 8 of 9 cities in Czechia and No. 157 of 297 worldwide, from the most polluted.

LowModerateElevatedHighVery highExtremely high

Hradec Králové: 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
13
7
13
14
17
13
12
7
3
4
12
35
25
31

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

25%An estimate of weather conditions · not a PM2.5 forecast

Now2516
20.0004.0011.0019.00

Pollution accumulation forecast

Today — October 22

13°/7°

Index by time of day

37/100Moderate

  1. 37/100Night
  2. 30/100Morning
  3. 7/100Day
  4. 27/100Evening

Friday — October 23

14°/3°

Index by time of day

59/100Moderate

  1. 59/100Night
  2. 46/100Morning
  3. 7/100Day
  4. 19/100Evening

Saturday — October 24

11°/6°

Index by time of day

41/100Moderate

  1. 41/100Night
  2. 36/100Morning
  3. 5/100Day
  4. 27/100Evening

Sunday — October 25

10°/4°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 25/100Morning
  3. 7/100Day
  4. 15/100Evening

Monday — October 26

13°/5°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 38/100Morning
  3. 8/100Day
  4. 23/100Evening

Tuesday — October 27

13°/6°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 38/100Morning
  3. 7/100Day
  4. 24/100Evening

Forecast of conditions that trap pollution near the surface

Weather

11°

Partly cloudy. Feels like 8°C

  1. MorningRain9°C89%
  2. DayPartly cloudy11°C59%
  3. EveningPartly cloudy8°C78%

Wind

7km/hWind from the WSW

18km/hWind gusts

Wind force: 2

Gusts up to 18 km/h are expected.

10-day weather forecast for Hradec Králové

Czechia

  1. TodayOct 22Rain13°C7°C
  2. FriOct 23Cloudy14°C3°C
  3. SatOct 24Rain11°C6°C
  4. SunOct 25Rain10°C4°C
  5. MonOct 26Cloudy13°C5°C
  6. TueOct 27Cloudy13°C6°C
  7. WedOct 28Rain11°C6°C
  8. ThuOct 29Cloudy12°C6°C
  9. FriOct 30Cloudy12°C3°C
  10. SatOct 31Cloudy10°C6°C

Where in Hradec Králové is the air worse?

See all sensors

Highest current reading: 15.4 µg/m³ (SC #100487). Lowest: 4.0 µg/m³ (Kukleny). The list shows every sensor, highest first.

  1. SC #100487 →15 µg/m³
  2. SC #90876 →12 µg/m³
  3. SC #77798 →7 µg/m³
  4. SC #77278 →6 µg/m³
  5. SC #73107 →4 µg/m³
  6. Kukleny →4 µg/m³

Source: atmy.ai monitoring network

Who provides the data

Sensors in the summary by network: Sensor.Community — 5 sensors, AirGradient — 1 sensor.

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

Czechia: sensors in total

110

  1. PragueCzechia

    37

  2. LiberecCzechia

    14

  3. Karlovy VaryCzechia

    10

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: Hradec Králové

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 Hradec Králové: it is refreshed every 15 minutes and links to this page. Paste the code into your site.

Air quality in Hradec Králové now — Atmy

Czechia · City ranking · All pilot cities

Questions

What was the air quality in Hradec Králové over the last completed day?

Daily mean PM2.5 on October 21, 2026 (00:00–24:00 UTC): 8 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 8 of 9 cities in Czechia and No. 157 of 297 worldwide, from the most polluted.

What is the air quality in Hradec Králové right now?

Right now in Hradec Králové, PM2.5 averages 8.1 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 6 sensors on the Atmy network, readings from 19:47–19:57 local time (17:47–17:57 UTC), summary prepared at 20:00 local time. Median: 6.4 µg/m³; range across sensors: 4.0–15.4 µg/m³.

Is it safe to be outdoors in Hradec Králové 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 Hradec Králové is the air worse?

Highest current reading: 15.4 µg/m³ (SC #100487). Lowest: 4.0 µg/m³ (Kukleny). 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 Hradec Králové polluted?

Over the last 355 days with data, the mean daily PM2.5 in Hradec Králové was 12.7 µg/m³ — 2.5 times the WHO annual guideline (5 µg/m³). Over the last 30 days: 25.3 µg/m³. From Atmy's archive of daily city means.

When is the air in Hradec Králové cleanest?

In Atmy's daily archive, the cleanest month of the last year was May 2026: 3.4 µg/m³ on average.

When is the air in Hradec Králové most polluted?

The most polluted month of the last year was September 2026: 22.4 µg/m³ on average.

Is the air in Hradec Králové worse in the heating season?

From November to March the mean daily PM2.5 was 14.4 µg/m³, from June to August 9.3 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