Smog in Tainan — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

The latest data Last 7 days Tainan pollution December 2016 - May 2020 Quality of life
Latest air quality data: Tainan
Locations: Taipei » Kaohsiung City » Taichung City » Tainan Hsinchu » Taoyuan » Keelung » Hualian » Taitung City » Nantou » Douliu »
Pollution and air quality forecast for Tainan. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Tainan:
  1. particulate matter (PM2.5) dust - 12 (Good)
  2. particulate matter (PM10) suspended dust - 14 (Good)
  3. ozone (O3) - 31 (Good)
  4. nitrogen dioxide (NO2) - 41 (Moderate)
  5. sulfur dioxide (SO2) - 51 (Moderate)
  6. carbon monoxide (CO) - 582 (Good)
Real-time Air Quality Index (AQI) for Tainan, Thursday, August 27, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Tainan today? Is the air polluted in Tainan?. Is there smog?

Today (Thursday, August 27, 2026) air quality is moderate in Tainan. Some pollutants in Tainan may slightly affect very few hypersensitive individuals. Air pollutants in Tainan may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Tainan? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 12 (Good) For comparison, the highest level of PM2.5 in Tainan in the last 7 days was: 21 (Wednesday, August 26, 2026) and the lowest: 4 (Sunday, August 23, 2026). The highest PM2.5 values were recorded: 39 (January 2019). The lowest level of particulate matter PM2.5 pollution occurs in month: June (10).

What is the level of PM10 today in Tainan? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Tainan is: 14 (Good) The highest PM10 values usually occur in month: 82 (December 2017). The lowest value of particulate matter PM10 pollution in Tainan is usually recorded in: June (21).

How is the O3 level today in Tainan? (ozone (O3))
31 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
41 (Moderate)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
51 (Moderate)

How high is the CO level? (carbon monoxide (CO))
582 (Good)



Current data Thursday, August 27, 2026 at 9:00 AM

PM2,5 12 (Good)

PM10 14 (Good)

O3 31 (Good)

NO2 41 (Moderate)

SO2 51 (Moderate)

CO 582 (Good)

Data on air pollution from recent days in Tainan

index 2026-08-27 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20
pm25 19
Moderate		 21
Moderate		 16
Moderate		 6
Good		 4
Good		 10
Good		 9
Good		 13
Moderate
pm10 21
Moderate		 24
Moderate		 17
Good		 7
Good		 5
Good		 11
Good		 9
Good		 15
Good
o3 24
Good		 24
Good		 23
Good		 41
Good		 52
Good		 10
Good		 12
Good		 14
Good
no2 52
Moderate		 52
Moderate		 47
Moderate		 35
Good		 27
Good		 55
Moderate		 51
Moderate		 58
Moderate
so2 43
Good		 50
Moderate		 33
Good		 17
Good		 15
Good		 27
Good		 28
Good		 42
Good
co 616
Good		 865
Good		 877
Good		 253
Good		 242
Good		 306
Good		 412
Good		 684
Good
data source »
Air pollution in Tainan from December 2016 to May 2020
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12
pm25 12 (Good) 24 (Moderate) 25 (Moderate) 28 (Moderate) 28 (Moderate) 23 (Moderate) 26 (Moderate) 28 (Moderate) 20 (Moderate) 13 (Moderate) 11 (Good) 10 (Good) 19 (Moderate) 23 (Moderate) 28 (Moderate) 30 (Moderate) 39 (Unhealthy for Sensitive Groups) 35 (Unhealthy for Sensitive Groups) 29 (Moderate) 32 (Moderate) 29 (Moderate) 24 (Moderate) 25 (Moderate) 10 (Good) 22 (Moderate) 27 (Moderate) 37 (Unhealthy for Sensitive Groups) 37 (Unhealthy for Sensitive Groups) 36 (Unhealthy for Sensitive Groups) 37 (Unhealthy for Sensitive Groups)
pm10 24 (Moderate) 47 (Moderate) 52 (Unhealthy for Sensitive Groups) 55 (Unhealthy for Sensitive Groups) 50 (Unhealthy for Sensitive Groups) 48 (Moderate) 62 (Unhealthy for Sensitive Groups) 61 (Unhealthy for Sensitive Groups) 43 (Moderate) 24 (Moderate) 22 (Moderate) 21 (Moderate) 44 (Moderate) 49 (Moderate) 59 (Unhealthy for Sensitive Groups) 63 (Unhealthy for Sensitive Groups) 81 (Unhealthy) 72 (Unhealthy for Sensitive Groups) 64 (Unhealthy for Sensitive Groups) 82 (Unhealthy) 74 (Unhealthy for Sensitive Groups) 64 (Unhealthy for Sensitive Groups) 49 (Moderate) 30 (Moderate) 45 (Moderate) 52 (Unhealthy for Sensitive Groups) 72 (Unhealthy for Sensitive Groups) 75 (Unhealthy for Sensitive Groups) 74 (Unhealthy for Sensitive Groups) 78 (Unhealthy for Sensitive Groups)
o3:ppm 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.02 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.02 (Good) 0.04 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good)
so2:ppm 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good)
co:ppm 0.23 (Good) 0.36 (Good) 0.39 (Good) 0.4 (Good) 0.48 (Good) 0.39 (Good) 0.35 (Good) 0.36 (Good) 0.29 (Good) 0.23 (Good) 0.22 (Good) 0.24 (Good) 0.36 (Good) 0.36 (Good) 0.44 (Good) 0.44 (Good) 0.49 (Good) 0.47 (Good) 0.43 (Good) 0.42 (Good) 0.38 (Good) 0.33 (Good) 0.3 (Good) 0.2 (Good) 0.3 (Good) 0.38 (Good) 0.48 (Good) 0.48 (Good) 0.46 (Good) 0.48 (Good)
no2:ppm 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.02 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good)
data source »

Quality of life in Tainan

Green and Parks in the City

Tainan 49%

Hong Kong: 52% Mexico: 56% Philippines: 45% South Korea: 61%

Pleasure of spending time in the city

Tainan 40%

Hong Kong: 43% Mexico: 57% Philippines: 39% South Korea: 43%

Air Pollution

Tainan 70%

Hong Kong: 67% Mexico: 53% Philippines: 64% South Korea: 69%

Garbage Disposal

Tainan 59%

Hong Kong: 52% Mexico: 52% Philippines: 35% South Korea: 62%

Availability and quality of drinking water

Tainan 54%

Hong Kong: 66% Mexico: 57% Philippines: 54% South Korea: 72%

Cleanliness and tidiness

Tainan 58%

Hong Kong: 54% Mexico: 45% Philippines: 38% South Korea: 63%

Noise and Light pollution

Tainan 66%

Hong Kong: 66% Mexico: 48% Philippines: 60%

Water Pollution

Tainan 70%

Hong Kong: 53% Mexico: 55% Philippines: 74% South Korea: 38%
Source: Numbeo


Tainan

Thursday, August 27, 2026 at 9:00 AM

PM2,5 12 (Good)

particulate matter (PM2.5) dust

PM10 14 (Good)

particulate matter (PM10) suspended dust

O3 31 (Good)

ozone (O3)

NO2 41 (Moderate)

nitrogen dioxide (NO2)

SO2 51 (Moderate)

sulfur dioxide (SO2)

CO 582 (Good)

carbon monoxide (CO)

Tainan

index 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26 2026-08-27
pm25 13 8.7 10 4.4 5.9 16 21 19
pm10 15 9.4 11 5 6.6 17 24 21
o3 14 12 9.7 52 41 23 24 24
no2 58 51 55 27 35 47 52 52
so2 42 28 27 15 17 33 50 43
co 684 412 306 242 253 877 865 616

Annan

2016-12   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12
pm25 12 25 26 29 29 24 26 29 22 16 15 12 19 24 28 27 36 35 29 30 28 25 26 11 21 27 36 35 33 36
pm10 26 52 54 55 55 50 64 64 42 25 21 27 50 55 62 66 81 75 65 84 74 68 52 34 49 56 77 81 78 83
no2:ppm 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.02 0.02
o3:ppm 0.03 0.05 0.04 0.03 0.03 0.03 0.04 0.05 0.04 0.03 0.02 0.02 0.03 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.02 0.04 0.04 0.04 0.03 0.03 0.02
so2:ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
co:ppm 0.23 0.37 0.39 0.4 0.47 0.39 0.35 0.36 0.29 0.25 0.25 0.27 0.37 0.36 0.43 0.43 0.47 0.45 0.42 0.41 0.37 0.33 0.29 0.23 0.31 0.38 0.44 0.42 0.42 0.45

Shanhua

2016-12   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12
co:ppm 0.22 0.34 0.36 0.36 0.44 0.35 0.32 0.32 0.25 0.18 0.17 0.19 0.31 0.32 0.4 0.39 0.45 0.41 0.4 0.38 0.33 0.28 0.25 0.15 0.26 0.33 0.46 0.5 0.42 0.42
pm25 13 24 26 28 28 24 26 28 20 12 9.2 8.6 19 23 28 31 38 35 30 32 30 24 25 10 22 27 37 37 36 38
so2:ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
no2:ppm 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0 0 0 0.01 0.01 0.01 0.01 0.02 0.01 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02
o3:ppm 0.02 0.04 0.04 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.02 0.03 0.03 0.03 0.03 0.03 0.02
pm10 25 46 52 54 44 49 63 61 46 23 22 19 44 51 63 68 87 68 54 71 70 63 49 28 44 51 70 74 72 75

Tainan

2017-09   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm25 11 23 24 28 29 24 26 28 20 12 10 9.5 19 25 29 29 38 35 30 33 29 24 22
pm10 22 46 51 56 53 49 62 63 43 24 21 18 37 43 56 60 81 65 64 81 69 59 42
o3:ppm 0.03 0.05 0.04 0.03 0.03 0.03 0.04 0.05 0.04 0.03 0.02 0.02 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04
so2:ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
co:ppm 0.22 0.4 0.43 0.45 0.53 0.46 0.41 0.41 0.33 0.27 0.25 0.27 0.4 0.4 0.51 0.48 0.56 0.55 0.51 0.49 0.45 0.4 0.35
no2:ppm 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.02 0.02 0.02 0.02 0.02 0.01 0.01

Xinying

2016-12   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12
o3:ppm 0.03 0.04 0.04 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.03 0.03 0.03 0.04 0.02 0.04 0.04 0.04 0.03 0.03 0.02
no2:ppm 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02
pm25 12 23 25 26 27 22 25 27 19 13 11 12 17 19 29 35 44 36 28 33 28 24 29 11 22 27 38 39 38 39
co:ppm 0.24 0.35 0.39 0.38 0.47 0.37 0.34 0.34 0.28 0.22 0.21 0.24 0.34 0.35 0.44 0.44 0.47 0.45 0.41 0.41 0.36 0.32 0.29 0.24 0.35 0.42 0.53 0.52 0.53 0.56
pm10 25 45 50 54 50 44 60 58 41 23 22 19 45 46 54 60 74 80 75 92 85 66 54 27 42 48 68 71 72 76
so2:ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

* Pollution data source: https://openaq.org (Taiwan) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Tainan

🌦️ WEATHER · 16-DAY FORECASTTainan🌧️25°RainToday · ↑26° ↓24°💨 7 km/h · 💧 91%Tue25.08🌧️26°24°Wed26.08🌧️29°25°Thu27.08🌧️31°26°Fri28.08🌧️33°27°Sat29.08🌧️34°28°Sun30.08🌧️33°28°Mon31.08🌧️32°27°Tue1.09🌧️32°27°Wed2.09🌧️32°27°Thu3.09🌧️33°27°Fri4.09🌧️32°28°Sat5.09🌧️33°27°Sun6.09🌧️33°27°Mon7.09🌧️32°27°Tue8.09🌤️34°27°Wed9.09☀️32°27°pollution-alert.com · August 27, 2026

16-day weather forecast for Tainan: today around 26°C (rain), lows near 24°C. Daily temperature and conditions, updated every day. Strong wind (about 26 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Tainan

☀️ UV INDEX · 16-DAY FORECASTTainan03681111+8.8UV VERY HIGHtoday, day maxSPF 50, long sleeves and shade between 10:00-16:00.⏱ Unprotected fair skin can burn in about 25 min9Wed26.089Thu27.089Fri28.089Sat29.088Sun30.087Mon31.089Tue1.099Wed2.097Thu3.093Fri4.098Sat5.099Sun6.095Mon7.091Tue8.091Wed9.097Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Tainan today is 8.8 (very high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Tainan — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Tainan today?
The current average PM2.5 across Tainan is about 12 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Tainan?
Right now PM2.5 in Tainan averages about 12 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Tainan?
Over the past week, the highest daily PM2.5 in Tainan was recorded on Wednesday, August 26 (about 21 µg/m³).
What is the UV index in Tainan today?
The UV index in Tainan today is 8.8 (very high) — unprotected fair skin can burn in about 25 minutes.
Does today's wind help disperse smog in Tainan?
Strong wind (about 26 km/h) is actively clearing smog and dust away.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.