Athens air quality now

Greece · The summary is refreshed every 15 minutes.

Now

No current value: fewer than four sensors at different places are reporting now.

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Athens, November 10, 2026: daily mean PM2.5 14 µg/m³ (7 sensors), level “Moderate” — as in the Atmy Data Hub. Open methodology and data in JSON: Methodology and data sources · JSON

There are not enough fresh measurements for Athens right now. From 11:00 to 22:00 local time the city mean PM2.5 fell from 14.9 to 6.0 µg/m³. The highest hour was 20:00 with 24.7 µg/m³.

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

Weather now: partly cloudy, 16°C, wind 1 m/s, humidity 92%. No major change in the wind is expected in the coming hours. By 11:00 the temperature will be about 21°C.

Written automatically at 23:09 local time (21:09 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

1 m/s

Wind, ENE

0 mm

Precipitation today

Athens: air quality for the completed day

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · November 10, 2026 · 00:00–24:00 UTC = 02:00–02:00 UTC+2

14 µg/m³ Moderate

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 14 µg/m³ from 7 sensors that passed the quality check — the same value as in the Atmy Data Hub.

No. 3 of 4 cities in Greece and No. 450 of 676 worldwide, from the most polluted.

LowModerateElevatedHighVery highExtremely high

Pollution accumulation index now

49/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now4918
00.0008.0015.0023.00

Pollution accumulation forecast

Today — November 12

23°/15°

Index by time of day

60/100Moderate

  1. 60/100Night
  2. 45/100Morning
  3. 7/100Day
  4. 18/100Evening

Friday — November 13

21°/18°

Index by time of day

44/100Moderate

  1. 44/100Night
  2. 34/100Morning
  3. 5/100Day
  4. 18/100Evening

Saturday — November 14

23°/18°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 42/100Morning
  3. 9/100Day
  4. 29/100Evening

Sunday — November 15

17°/10°

Index by time of day

39/100Moderate

  1. 39/100Night
  2. 22/100Morning
  3. 8/100Day
  4. 25/100Evening

Monday — November 16

16°/8°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 43/100Morning
  3. 9/100Day
  4. 25/100Evening

Tuesday — November 17

18°/9°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 39/100Morning
  3. 8/100Day
  4. 24/100Evening

Forecast of conditions that trap pollution near the surface

Weather

16°

Partly cloudy. Feels like 17°C

  1. MorningClear18°C85%
  2. DayPartly cloudy22°C69%
  3. EveningPartly cloudy19°C84%

Wind

1m/sWind from the ENE

3m/sWind gusts

Wind force: 1

Light wind is expected over the next few hours.

10-day weather forecast for Athens

Greece

  1. TodayNov 12Cloudy23°C15°C
  2. FriNov 13Cloudy21°C18°C
  3. SatNov 14Cloudy23°C18°C
  4. SunNov 15Cloudy17°C10°C
  5. MonNov 16Cloudy16°C8°C
  6. TueNov 17Fog18°C9°C
  7. WedNov 18Cloudy20°C9°C
  8. ThuNov 19Fog23°C13°C
  9. FriNov 20Partly cloudy22°C16°C

Greece: sensors in total

53

  1. ThessalonikiGreece

    22

  2. DramaGreece

    3

  3. PtolemaidaGreece

    3

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: Athens

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

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

Greece · City ranking · All pilot cities

Questions

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

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 14 µg/m³ from 7 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 3 of 4 cities in Greece and No. 450 of 676 worldwide, from the most polluted.

What is the air quality in Athens right now?

Fresh data for Athens are insufficient (last update: 22:45 local time, 20:45 UTC). Open the map for the latest readings of individual sensors.

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.

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