What is the air quality in Hongseong today?

The current Air Quality Index (AQI) in Hongseong is 77 (Moderate). PM2.5 concentration is 24.29 µg/m³.

What is the temperature in Hongseong right now?

The current temperature in Hongseong is 21.2°C (feels like 21.2°C). Humidity is 65.4% and wind speed is 33.8 km/h.

Air Quality in Hongseong, South Korea

Partly Cloudy

21.2°C · 65.4% humidity

21.2°

Feels 21.2°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

10 stations

Nearby Monitoring Stations

AQI Forecast

— 2pm

—

— 5pm

—

— 8pm

—

— 11pm

—

— 2am

—

— 5am

—

— 8am

—

— 11am

—

Air Quality Index Trend

47h · 33 stn

View full history →

Hongseong's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions. Current PM2.5 concentration in Hongseong is 1.6× the WHO 24-hour guideline of 15 µg/m³.

65.4%

Humidity

33.8 km/h

Wind S

1007.0 hPa

Pressure

4.4

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

24.29 µg/m³

PM10

66.15 µg/m³

050100150200300500

What is the weather forecast for Hongseong?

Temperature & Precipitation

PM2.5 Trend

47h · 33 stations

PM2.524.29 µg/m³ ×1.6 WHO

Moderate

PM1066.15 µg/m³

Moderate

UV INDEX4.4

Moderate

Station readings (10 stations within 25 km)

24.29

Median

22.08

Average

15.0

Low

26.8

High

PM2.5 µg/m³ · Model: 20.75 · Bias: -3.5

What is the 7-day forecast for Hongseong?

05-30

21.2° 14.0°

0.06 mm

05-31

22.4° 16.7°

2.0 mm

06-01

25.7° 15.5°

06-02

27.6° 19.6°

06-03

22.9° 15.1°

2.38 mm

06-04

22.8° 15.3°

0.56 mm

06-05

24.5° 16.4°

Both models agree Avg diff: 3.0°C

Where are air quality stations near Hongseong?

Hongseonggun-eup, Chungnam, South Korea (홍성읍 충남)

0.9 km PM2.5: 16.9 µg/m³

Hongseonggun-eup, Chungnam, South Korea (홍성읍 충남)

0.9 km PM2.5: 14.0 µg/m³

Hongseonggun-eup, Chungnam, South Korea (홍성읍 충남)

0.9 km PM2.5: 15.0 µg/m³

Hongseonggun-eup, Chungnam, South Korea (홍성읍 충남)

0.9 km PM2.5: 22.1 µg/m³

Naepo, Chungnam, South Korea (내포 충남)

5.8 km PM2.5: 3.6 µg/m³

104

Naepo, Chungnam, South Korea (내포 충남)

5.8 km PM2.5: 36.7 µg/m³

Naepo, Chungnam, South Korea (내포 충남)

5.8 km PM2.5: 13.5 µg/m³

Naepo, Chungnam, South Korea (내포 충남)

5.8 km PM2.5: 15.9 µg/m³

Sapgyo-eup, Chungnam, South Korea (삽교읍 충남)

11.7 km PM2.5: 22.6 µg/m³

Sapgyo-eup, Chungnam, South Korea (삽교읍 충남)

11.7 km PM2.5: 17.8 µg/m³

What cities are near Hongseong?

61 Yesan 90 Seosan 77 Boryeong 70 Tangjin 71 Asan 70 Buyeo 63 Gongju 91 Taesal-li 68 Cheonan 77 Seonghwan

Get AQI alerts for Hongseong

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T08:15 UTC.