Yeosu air quality now

South Korea · The summary is refreshed every 15 minutes.

November 12

The air is moderate now

Measured 06:00

Yeosu

10°C

Partly cloudy

71AQI

1026

hPa

Atmospheric
pressure

89%

Humidity

Yeosu, November 10, 2026: daily mean PM2.5 8 µg/m³ (8 sensors), level “Low” — as in the Atmy Data Hub. Now (07:00 local time): 20.1 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON

Right now in Yeosu, PM2.5 averages 20.1 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 8 sensors from Government stations, readings from 06:00–06:00 local time (21:00–21:00 UTC), summary prepared at 07:00 local time. Median: 19.0 µg/m³; range across sensors: 10.0–30.0 µg/m³.

In Yeosu the air is moderate 🟡 AQI 71. Higher than three hours ago. ⛅ +10 °C · No precipitation · Wind 2 m/s

In Yeosu the air is moderate right now (approximate, US EPA scale). From 18:00 to 07:00 local time the city mean PM2.5 rose from 15.5 to 20.1 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). High humidity (89%) possibly makes optical sensors read somewhat higher.

Weather now: partly cloudy, 10°C, wind 2 m/s, humidity 89%. By 13:00 the wind is expected to pick up to 4 m/s, which may clear the air. By 18:00 the temperature will be about 14°C.

Written automatically at 07:00 local time (22:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

2 m/s

Wind, NNW

0 mm

Precipitation today

Yeosu: air quality for the completed day

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · November 10, 2026 · 00:00–24:00 UTC = 09:00–09:00 UTC+9

8 µg/m³ Low

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 09:00–09:00 UTC+9): 8 µg/m³ from 8 sensors that passed the quality check — the same value as in the Atmy Data Hub.

No. 36 of 39 cities in South Korea and No. 558 of 676 worldwide, from the most polluted.

LowModerateElevatedHighVery highExtremely high

Pollution accumulation index now

38/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now3839
07.0015.0022.0006.00

Pollution accumulation forecast

Today — November 12

17°/10°

Index by time of day

48/100Moderate

  1. 48/100Night
  2. 38/100Morning
  3. 7/100Day
  4. 23/100Evening

Friday — November 13

18°/10°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 39/100Morning
  3. 7/100Day
  4. 20/100Evening

Saturday — November 14

17°/15°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 28/100Morning
  3. 9/100Day
  4. 24/100Evening

Sunday — November 15

19°/13°

Index by time of day

44/100Moderate

  1. 44/100Night
  2. 34/100Morning
  3. 8/100Day
  4. 27/100Evening

Monday — November 16

18°/11°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 26/100Morning
  3. 5/100Day
  4. 19/100Evening

Tuesday — November 17

17°/11°

Index by time of day

41/100Moderate

  1. 41/100Night
  2. 26/100Morning
  3. 4/100Day
  4. 16/100Evening

Forecast of conditions that trap pollution near the surface

Weather

10°

Partly cloudy. Feels like 8°C

  1. MorningPartly cloudy12°C85%
  2. DayPartly cloudy17°C65%
  3. EveningClear12°C83%

Wind

2m/sWind from the NNW

3m/sWind gusts

Wind force: 2

Gusts up to 6 m/s are expected.

10-day weather forecast for Yeosu

South Korea

  1. TodayNov 12Cloudy17°C10°C
  2. FriNov 13Cloudy18°C10°C
  3. SatNov 14Rain17°C15°C
  4. SunNov 15Rain19°C13°C
  5. MonNov 16Cloudy18°C11°C
  6. TueNov 17Rain17°C11°C
  7. WedNov 18Rain14°C8°C
  8. ThuNov 19Partly cloudy8°C5°C
  9. FriNov 20Clear11°C5°C
  10. SatNov 21Cloudy15°C7°C

Where in Yeosu is the air worse?

See all sensors

Highest current reading: 30.0 µg/m³ (삼일동 (한국환경공단 에어코리아 (AirKorea))). Lowest: 10.0 µg/m³ (화양면 (한국환경공단 에어코리아 (AirKorea))). The list shows every sensor, highest first.

  1. 삼일동 (한국환경공단 에어코리아 (AirKorea)) →30 µg/m³
  2. 여수항 (한국환경공단 에어코리아 (AirKorea)) →28 µg/m³
  3. 월내동 (한국환경공단 에어코리아 (AirKorea)) →28 µg/m³
  4. 덕충동 (한국환경공단 에어코리아 (AirKorea)) →22 µg/m³
  5. 여천동(여수) (한국환경공단 에어코리아 (AirKorea)) →16 µg/m³
  6. 문수동 (한국환경공단 에어코리아 (AirKorea)) →15 µg/m³
  7. 율촌면 (한국환경공단 에어코리아 (AirKorea)) →12 µg/m³
  8. 화양면 (한국환경공단 에어코리아 (AirKorea)) →10 µg/m³

Source: atmy.ai monitoring network

Who provides the data

Sensors in the summary by network: Government stations — 8 sensors.

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

South Korea: sensors in total

529

  1. SeoulSouth Korea

    34

  2. BusanSouth Korea

    30

  3. IncheonSouth Korea

    27

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: Yeosu

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

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

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An Atmy card with the air quality in Yeosu now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.

Air quality in Yeosu now — Atmy

South Korea · City ranking · All pilot cities

Questions

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

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 09:00–09:00 UTC+9): 8 µg/m³ from 8 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 36 of 39 cities in South Korea and No. 558 of 676 worldwide, from the most polluted.

What is the air quality in Yeosu right now?

Right now in Yeosu, PM2.5 averages 20.1 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 8 sensors from Government stations, readings from 06:00–06:00 local time (21:00–21:00 UTC), summary prepared at 07:00 local time. Median: 19.0 µg/m³; range across sensors: 10.0–30.0 µg/m³.

Is it safe to be outdoors in Yeosu now?

The current level is “moderate” (US EPA scale, approximate). Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors. This is the standard guidance of the scale, not medical advice.

Where in Yeosu is the air worse?

Highest current reading: 30.0 µg/m³ (삼일동 (한국환경공단 에어코리아 (AirKorea))). Lowest: 10.0 µg/m³ (화양면 (한국환경공단 에어코리아 (AirKorea))). 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.

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