Coimbatore's air today: where the smoke is coming from
Coimbatore's smoke report
The air over Coimbatore is almost still right now (under 3 km/h, 30 October, 08:15 IST), so smoke from the city's own sources and from nearby fires can build up instead of blowing away. 26 fires were seen within 250 km in the 24 hours to 30 October, 04:18 IST.
Ranks among the cities with pages here that have any of each: #1 has the most.
Map of the fires around the city, last 24 hours
Each dot is one fire a NASA satellite saw. The wind is calm, so there is no upwind side: smoke from fires on every side can drift in and settle over the city. Red dots are likely crop burning, brown dots other fires. Tap a dot for the village and the time.
Fires within 250 km in the last 24 hours, by direction. The wind is calm, so no side is upwind. Tap a direction to pick out its fires on the map.
What satellites see around Coimbatore
What satellites and surveys see around the city. Each is a different measure, so they can't be added up into shares of the air.
Fires around Coimbatore in the last 30 days
The busiest of the last 29 days was 11 October, with 37 fire spots within 250 km, 2 of them within 50 km.
within 250 km within 50 km
A fire spot is one fire seen on a day, however many satellites saw it (Pakistan-time days). The archive runs every day from 1 October 2026; before that it holds only the October-November seasons.
NO₂ pollution in Coimbatore: traffic, industry and power plants
Over the last 14 days the air over Coimbatore held 1.35 times the region's usual level of nitrogen dioxide (NO₂), #46 of 58 cities.
The strongest NO₂ peak within 35 km was 1.72 times the usual level, 34 km from the city centre, near an industrial estate (Coimbatore).
From Sentinel-5P's TROPOMI instrument via NASA's GIBS tiles, which publish NO₂ as colour bands: a level here is good to about one band. NO₂ in big cities comes mostly from vehicle engines; peaks are named after what is nearby, which suggests a source but doesn't measure one. NO₂ window 15 October to 28 October 2026.
Landfills
Carbon Mapper hasn't measured a methane plume from a landfill within 50 km of Coimbatore, but 2 landfills and dump sites are mapped there.
Power plants and industry
No fossil-fuel power plant is mapped within 50 km of Coimbatore, but 297 industrial areas are.
1 always-hot site that NASA's satellites saw burning on 20 or more days in 2025: Chinnakuyilai (21)
Within 50 km of the city centre, on either side of the border. These are lists of what is there, not measures of how much each adds to the air.
Every mapped source within 50 km of Coimbatore
Tap a layer to hide it, or a site for its name.
Brick-kiln surveys, OpenStreetMap, Carbon Mapper and NASA FIRMS, on either side of the border. These map what is there, not how much each adds to the air. /sites/ · Site lists built 26 October 2026.
Fires around Coimbatore this season compared with past years
Fire spots within 250 km of Coimbatore from 1 October to 29 October, each year. These count Suomi NPP alone, so every year is measured by the same instrument and the years compare fairly (the 30-day chart above counts all five satellites, three VIIRS and two MODIS, so its numbers are higher).
* 2026: 1 day without Suomi NPP data: a floor
Coimbatore against the other cities
Each strip holds the cities with pages here that have any of it, the most on the left; the red mark is Coimbatore. They are different measures, so a high rank on one isn't a larger share of the air than a high rank on another.
All the rankings: city rankings
Send this to someone in Coimbatore
Pasted into WhatsApp or X, the link shows this map of the fires and the wind, redrawn every few hours.
Coimbatore air today: where the smoke is coming from
hamarihawa.org
All the numbers
Every table behind this page.
Fires within 250 km by direction, last 24 hours
| From the | Fires |
|---|---|
| north | 9 |
| north-east | 7 |
| east | 5 |
| south-east | 3 |
| south | 1 |
| south-west | 0 |
| west | 0 |
| north-west | 1 |
Fires within 250 km in the last 7 days
| District | Province or state | Country | Distance | Fires | On farmland |
|---|---|---|---|---|---|
| Mandya | Karnataka | India | 174 km | 11 | 9% |
| Salem | Tamil Nadu | India | 134 km | 10 | 0% |
| Tiruppur | Tamil Nadu | India | 72 km | 10 | 40% |
| Bangalore Urban | Karnataka | India | 210 km | 9 | 11% |
| Chamrajnagar | Karnataka | India | 106 km | 6 | 83% |
| Mysore | Karnataka | India | 135 km | 6 | 67% |
| Ramanagara | Karnataka | India | 193 km | 4 | 25% |
| Krishnagiri | Tamil Nadu | India | 219 km | 4 | 75% |
| Ariyalur | Tamil Nadu | India | 235 km | 3 | 0% |
| Bangalore Rural | Karnataka | India | 245 km | 3 | 100% |
Fires around Coimbatore this season compared with past years
| Season | Fire spots |
|---|---|
| 2019 | 100 |
| 2020 | 105 |
| 2021 | 44 |
| 2022 | 75 |
| 2023 | 203 |
| 2024 | 75 |
| 2025 | 81 |
| 2026 (so far) | 142 (1 day without Suomi NPP data: a floor) |
Every measure and rank
Where Coimbatore stands among the 58 cities with pages here, on each measure. They are different measures, so a high rank on one isn't a larger share of the air than a high rank on another.
| Measure | Coimbatore | Rank |
|---|---|---|
| Fire spots within 250 km, last 30 days | 426 | 53 of 58 |
| NO₂, times the usual level (14 days) | 1.35× | 46 of 58 |
| Landfill methane within 50 km | none measured | – |
| Measured plant CO₂ within 50 km | none measured | – |
| Brick kilns within 50 km | – | – |
| Industrial areas within 50 km | 297 | 12 of 58 |
| Always-hot sites within 50 km | 1 | 13 of 23 |
Ranks on today's fires
Coimbatore's place among the cities, on the numbers that change with each satellite pass.
- Fire spots upwind, last 24 hours: calm wind, no upwind direction
- Fire spots within 250 km, last 24 hours: 40 of 57
- Fire spots within 250 km, last 7 days: 53 of 58
All the rankings: city rankings
Questions about Coimbatore's air
Where is Coimbatore's smoke coming from today?
The air over Coimbatore is almost still right now (under 3 km/h, 30 October, 08:15 IST), so smoke from the city's own sources and from nearby fires can build up instead of blowing away. 26 fires were seen within 250 km in the 24 hours to 30 October, 04:18 IST.
Are crop fires burning near Coimbatore?
In the last 24 hours NASA's satellites saw 26 fire spots within 250 km of Coimbatore, and 426 in the last 30 days. Satellites only see what is burning as they pass, and not under cloud.
How bad is traffic pollution in Coimbatore?
Over the 14 days 15 October to 28 October 2026, nitrogen dioxide in the air over Coimbatore (within 15 km) was about 1.35 times the usual level of the surrounding region, roughly 1.91 ×10¹⁵ molecules/cm². Of the 58 cities with enough clear days, it ranks 46.
Which landfills near Coimbatore release methane?
Carbon Mapper hasn't measured a methane plume from a landfill within 50 km of Coimbatore. Its overpasses are occasional, so that isn't proof there are none.
Every number on this page is also in machine-readable form (JSON).
More about Coimbatore
Nearby cities: Kochi (142 km), Madurai (176 km), Bengaluru (228 km), Thiruvananthapuram (277 km)
Fires up to 30 October, 04:18 IST. This page updates every 15 minutes. Upwind is a guide, not proof: smoke can travel further than 250 km, the wind turns during the day, and satellites can't see fires under cloud. A fire spot is one fire, about 375 m across, however many satellites saw it. Fires: NASA FIRMS (VIIRS and MODIS). Wind: Open-Meteo's weather model. Air: Copernicus CAMS model estimates, which read low in winter.