What is the air quality in Chiayi City today?

The current Air Quality Index (AQI) in Chiayi City is 101 (Unhealthy for sensitive groups). PM2.5 concentration is 35.53 µg/m³.

What is the temperature in Chiayi City right now?

The current temperature in Chiayi City is 26.6°C (feels like 26.6°C). Humidity is 68.2% and wind speed is 8.9 km/h.

Is it safe to go outside in Chiayi City?

Sensitive groups should reduce prolonged outdoor exertion. The UV Index is 0.0 (Low).

Air Quality in Chiayi City, Taiwan

Partly Cloudy

26.6°C · 68.2% humidity

26.6°

Feels 26.6°

101

Unhealthy for sensitive groups

Sensitive groups should reduce prolonged outdoor exertion.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 6 stn

View full history →

Chiayi City'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 Chiayi City is 2.4× the WHO 24-hour guideline of 15 µg/m³.

68.2%

Humidity

8.9 km/h

Wind NW

1015.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

101

35.53 µg/m³

PM10

101

154.9 µg/m³

050100150200300500

What is the weather forecast for Chiayi City?

Temperature & Precipitation

PM2.5 Trend

45h · 6 stations

PM2.535.53 µg/m³ ×2.4 WHO

Unhealthy for sensitive groups

PM10154.9 µg/m³

Unhealthy for sensitive groups

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

35.53

Median

32.3

Average

25.9

Low

38.7

High

PM2.5 µg/m³ · Model: 53.7 · Bias: +18.2

What is the 7-day forecast for Chiayi City?

10-21

32.6° 25.1°

10-22

31.3° 25.3°

1.25 mm

10-23

31.3° 23.2°

0.06 mm

10-24

30.7° 25.2°

0.75 mm

10-25

33.0° 20.7°

10-26

30.0° 22.2°

10-27

27.7° 20.6°

0.06 mm

Both models agree Avg diff: 2.2°C

Where are air quality stations near Chiayi City?

122

Xingang, Taiwan (新港)

13.5 km PM2.5: 44.0 µg/m³

109

Xingang, Taiwan (新港)

13.5 km PM2.5: 38.7 µg/m³

104

Puzi, Taiwan (朴子)

20.6 km PM2.5: 36.7 µg/m³

Xinying, Taiwan (新營)

23.5 km PM2.5: 31.1 µg/m³

What cities are near Chiayi City?

99 Taibao 109 Xingang 106 Beigang 80 Xinying 58 Douliu 62 Citong 80 Budai 71 Xiluo 61 Linnei 63 Zhushan

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T00:33 UTC.