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Taipei air quality

Taiwan · Live AQI and hourly forecast for the next 5 days · updated Sun 08:00 local time

110

Unhealthy for sensitive groups

US AQI, mostly PM2.5

Kids, older adults and people with asthma or heart conditions should limit long outdoor exertion.

Next 24 hours
110–136US AQI, highest around Mon 03:00
Best time outside
Sun 08:00–11:00US AQI about 112
PM2.5 vs WHO guideline
3.3×49 µg/m³ over 24 h, guideline 15
Cigarette equivalent
≈ 2.2 a dayBerkeley Earth rule of thumb
European AQI
Poorlevel 4 of 6

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The live globe, centred on Taipei. Switch pollutants, drag through the next 5 days or press play. Full map →

Pollutants in Taipei right now

PollutantNowNext 24 h vs WHOUS AQI band
Fine particles (PM2.5) 37 µg/m³ 3.3× Sensitive
Coarse particles (PM10) 40 µg/m³ 1.2× Good
Nitrogen dioxide (NO2) 65 µg/m³ 2.4× Good
Ozone (O3) 52 µg/m³ 1.5× Good
Sulphur dioxide (SO2) 58 µg/m³ 1.2× Good
Carbon monoxide (CO) 468 µg/m³ 0.1× Good
Desert dust0 µg/m³
Smoke and haze (aerosol optical depth)0.19
UV index2.4

“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM2.5, 45 for PM10, 25 for NO2, 40 for SO2 and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline.

Next 48 hours

Hourly US AQI. Highest 146 around Tue 07:00, lowest 110 around Sun 08:00.

Good 0–50Moderate 51–100Sensitive 101–150Unhealthy 151–200Very unhealthy 201–300Hazardous 301+

5-day air quality forecast for Taipei

Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 150.

DayUS AQIAt worstWorst hourPM2.5 avgUV max
Sun 27 Sept 88–129 Sensitive 23:00 48 8.7
Mon 28 Sept 131–139 Sensitive 23:00 52 8.5
Tue 29 Sept 141–150 Sensitive 17:00 52 8.1
Wed 30 Sept 133–145 Sensitive 18:00 47 7.4
Thu 1 Oct 111–129 Sensitive 0:00 41 6.4

Common questions about the air in Taipei

  1. Is the air in Taipei safe today?

    Not for sensitive groups. Right now the US AQI in Taipei is 110, which counts as unhealthy for sensitive groups. Kids, older adults and people with asthma or heart conditions should limit long outdoor exertion.

  2. When is the best time to be outside in Taipei?

    Sun 08:00–11:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 112. The worst hour is around Mon 03:00, at 136.

  3. What is the main pollutant in Taipei?

    Fine particles (PM2.5). It drives the index right now, at 37 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.

  4. How does Taipei's air compare with the WHO guideline?

    3.3 times the guideline. Over the next 24 hours PM2.5 averages about 49 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. PM10, NO2, O3 and SO2 are also forecast above their guideline levels.

  5. How many cigarettes is a day of Taipei's air?

    About 2.2 cigarettes. Over the next 24 hours PM2.5 averages about 49 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.

  6. Will air quality in Taipei improve this week?

    Today looks cleanest. Its AQI peaks at 129, against 150 on Tuesday, the worst day in the forecast.

Air quality near Taipei

All 161 cities

About this forecast

Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (10 km inside Europe), refreshed twice a day. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown; ground stations, where there are any nearby, show what monitors actually measure. The US AQI follows the US EPA scale and the European AQI the EEA bands. Readings for 25.03°N, 121.57°E, updated 2026-09-27 00:00 UTC.