SmogRank / India / Karnataka / Chikmagalūr

Chikmagalūr, month by month

Chikmagalūr has a measured daily mean on 345 days since 19 February 2025. Its worst month was November 2025, at 93 US AQI (31.9 µg/m³), 244th of 2,715 cities on that month's world ranking. Its cleanest was September 2025, at 56 US AQI (11.7 µg/m³).

Every month since 2025

2026too few days for a mean (a year needs 200)150 days measured
Jan21 daysFeb17 daysMar91#259Apr17 daysMay11 daysJun12 daysJul17 daysAug16 daysSep14 daysOct2 days
2025too few days for a mean (a year needs 256)195 days measured
JanFeb2 daysMar4 daysApr16 daysMay16 daysJun17 daysJul56#859Aug58#654Sep56#490Oct21 daysNov93#244Dec71#515
Each square is a month's mean PM2.5 in US AQI from Chikmagalūr's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Chikmagalūr marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

15 months
MonthWhy
Oct 20262 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitor, 5 with readings for part of the day (a day needs 18 hours).
Sep 202614 of 30 days measured; a month needs 21. The others: 1 with no readings from the monitor, 15 with readings for part of the day (a day needs 18 hours).
Aug 202616 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Jul 202617 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Jun 202612 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
May 202611 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Apr 202617 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks.
Feb 202617 of 28 days measured; a month needs 20. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 202621 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202521 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jun 202517 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks.
May 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Apr 202516 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
Mar 20254 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Feb 20252 of 28 days measured; a month needs 20. The others: 8 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Chikmagalūr's worst months

MonthUS AQIDays measuredWorld rankEpisode
November 2025 9331.9 µg/m³21 of 30244thof 2,715Southern India, November 2025
March 2026 9130.6 µg/m³23 of 31259thof 2,971–
December 2025 7119.8 µg/m³28 of 31515thof 3,006–
August 2025 5812.6 µg/m³23 of 31654thof 2,901–
July 2025 5611.9 µg/m³22 of 31859thof 2,889–
September 2025 5611.7 µg/m³25 of 30490thof 3,104–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Chikmagalūr's worst days

DayUS AQI
22 Nov 2025 16271.8 µg/m³
29 Oct 2025 16169.4 µg/m³
3 Nov 2025 15967.5 µg/m³
1 Nov 2025 15358.6 µg/m³
14 Mar 2026 15257.5 µg/m³
18 Aug 2025 14051.5 µg/m³
13 Mar 2026 13649.6 µg/m³
6 Mar 2026 13247.9 µg/m³
2 Apr 2026 13147.8 µg/m³
26 Mar 2026 12745.9 µg/m³

Daily means, the highest since 19 Feb 2025; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Chikmagalūr, India, 19 Feb 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/chikmagalur/history (accessed 13 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Chikmagalūr now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-13 01:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).