Siliguri air quality · West Bengal, India
A HEPA purifier in the bedroom makes nights noticeably easier
NAQI 111 (Moderate) in Siliguri, from 5 CPCB monitoring stations. On the US scale that is 110 (Unhealthy for Sensitive Groups).
Updated
Pollutants in Siliguri
- PM2.5 · µg/m³39.32.6× WHO limit
- PM10 · µg/m³66.0Under WHO limit
- NO₂ · µg/m³34.4Under WHO limit
- O₃ · µg/m³10.2
- SO₂ · µg/m³1102.8× WHO limit
- CO · mg/m³0.57
Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.
Is it safe outside in Siliguri right now?
May cause breathing discomfort to people with lung disease such as asthma, and discomfort to people with heart disease, children and older adults.
Walking and commuting
Go aheadFine for most people; sensitive groups keep it shorter.
Running and jogging
LimitSensitive groups move indoors. Others take more breaks and shorten the run.
Cycling
Take carePrefer routes away from heavy traffic; sensitive groups ride shorter.
Children playing outside
Take careChildren with asthma should take breaks and keep reliever inhalers handy.
Older adults and heart or lung conditions
LimitReduce long or heavy exertion outdoors and keep medicines close.
Open windows
Take careVentilate briefly, ideally when the reading is lowest.
Mask outdoors
OptionalSensitive groups may wear an N95 or FFP2 mask for long trips.
Air purifier indoors
OptionalUseful for sensitive people, especially at night.
Based on the US EPA Air Quality Guide, applied to the current NAQI category. If you have symptoms, follow your doctor's advice.
What US AQI 101–150 means for your health →
Air quality by area in Siliguri
5 stations, worst first- SiliguriModerate143
- SMCModerate140
- Siliguri CHModerate104
- Siliguri SRSatisfactory90
- Ward-32 BapuparaSatisfactory72
Siliguri air quality history
Daily average, 35 days- 50average daily NAQI over 35 days
- 79worst day, 18 October
- 25cleanest day, 25 September
- 0days at Poor or worse
The last 7 days averaged 67, worse than the week before (48). 20 of the last 35 days were Good.
Weather in Siliguri
| Day | Forecast | Max | Min |
|---|---|---|---|
| Mon 19 | Generally cloudy sky with one or two spells of rain or thundershowers | 31° | 22° |
| Tue 20 | Partly cloudy sky with possibility of development of thunder lightning | 30° | 22° |
| Wed 21 | Partly cloudy sky | 32° | 23° |
| Thu 22 | Partly cloudy sky | 33° | 22° |
| Fri 23 | Partly cloudy sky | 34° | 21° |
| Sat 24 | Partly cloudy sky | 33° | 22° |
| Sun 25 | Partly cloudy sky | 32° | 21° |
India Meteorological Department (IMD) city forecast, issued 19 October 2026. All IMD warnings →
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Siliguri air quality: common questions
What is the AQI in Siliguri right now?
The NAQI in Siliguri is 111 (Moderate), based on 5 monitoring stations. On the US AQI scale the same air reads 110 (Unhealthy for Sensitive Groups).
Is it safe to go outside in Siliguri today?
Sensitive groups should take it easy. May cause breathing discomfort to people with lung disease such as asthma, and discomfort to people with heart disease, children and older adults. For runners: Sensitive groups move indoors. Others take more breaks and shorten the run.
Which area of Siliguri has the worst air right now?
Siliguri has the highest reading at 143 (Moderate). Ward-32 Bapupara has the lowest at 72, out of 5 stations reporting.
How has air quality in Siliguri been recently?
Over the last 35 days with data, Siliguri averaged NAQI 50. The worst day was 18 October at 79; the cleanest was 25 September at 25. 0 days were at Poor or worse.
How does Siliguri's PM2.5 compare with the WHO guideline?
PM2.5 is 39 µg/m³, about 2.6 times the World Health Organization's 24-hour guideline of 15 µg/m³.
Where does Siliguri's air quality data come from?
From State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network, using 5 monitoring stations in and around the city. Good Air does not estimate or adjust these readings.
Source: State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network. Readings are published by the monitoring agency and may be revised.