SmogRank / France / Auvergne-Rhône-Alpes / Vichy

Vichy, month by month

Vichy has a measured daily mean on 611 days since 1 February 2024. Its worst month was February 2025, at 62 US AQI (15.0 µg/m³), 863rd of 2,633 cities on that month's world ranking. Its cleanest was September 2025, at 19 US AQI (3.4 µg/m³).

Every month since 2024

202637 so far251 days measured2,348th of 2,791 in the world
Jan19 daysFeb33#2,447Mar49#1,903Apr32#2,271May28#2,348Jun18 daysJul39#2,127Aug36#2,290Sep24#2,597Oct29#2,057
202542 for the year293 days measured1,923rd of 2,681 in the world
Jan51#1,141Feb62#863Mar48#1,842Apr29#2,479May18 daysJun20 daysJul31#2,486Aug34#2,450Sep19#3,026Oct20 daysNov32#2,220Dec53#1,304
2024too few days for a mean (a year needs 257)67 days measured
JanFeb1 dayMarnoneAprnoneMaynoneJunnoneJulnoneAug8 daysSepnoneOct11 daysNov49#1,126Dec21 days
Each square is a month's mean PM2.5 in US AQI from Vichy'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 Vichy marked; each year, the year's. A dashed square is the running month, so far.
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
Jun 202618 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks.
Jan 202619 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Oct 202520 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jun 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
May 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Dec 202421 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202411 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20248 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Jul 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20241 of 29 days measured; a month needs 21. The others: 28 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.

Vichy's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 6215.0 µg/m³23 of 28863rdof 2,633Europe, 14 February to 1 March 2025
December 2025 5310.1 µg/m³29 of 311,304thof 3,006–
January 2025 519.2 µg/m³26 of 311,141stof 2,474Germany, France and 19 more countries, January 2025
Europe, January 2025
March 2026 498.9 µg/m³31 of 311,903rdof 2,971–
November 2024 498.8 µg/m³26 of 301,126thof 2,624–
March 2025 488.6 µg/m³26 of 311,842ndof 2,862Europe, 14 February to 1 March 2025

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.

Vichy's worst days

DayUS AQIEpisode
20 Jan 2025 9633.1 µg/m³Germany, France and 19 more countries, January 2025
18 Feb 2025 8728.6 µg/m³Europe, 14 February to 1 March 2025
21 Jan 2025 8427.0 µg/m³Germany, France and 19 more countries, January 2025
14 Jan 2025 8426.6 µg/m³Germany, France and 19 more countries, January 2025
Europe, January 2025
11 Jun 2025 8326.4 µg/m³Europe, June 2025
19 Jan 2025 8125.4 µg/m³Germany, France and 19 more countries, January 2025
15 Feb 2025 8125.4 µg/m³Europe, 14 February to 1 March 2025
17 Feb 2025 8125.3 µg/m³Europe, 14 February to 1 March 2025
3 Feb 2025 7924.2 µg/m³–
6 Jan 2026 7924.1 µg/m³–

Daily means, the highest since 1 Feb 2024; 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, Vichy, France, 1 Feb 2024 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/fr/vichy/history (accessed 12 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.

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

Updated 2026-10-12 20:07 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).