SmogRank / Mexico / Nayarit / Tepic

Tepic, month by month

Tepic has a measured daily mean on 481 days since 12 July 2023. Its worst month was December 2025, at 73 US AQI (20.7 µg/m³), 480th of 3,006 cities on that month's world ranking. Its cleanest was August 2026, at 40 US AQI (7.2 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)154 days measured
JannoneFebnoneMar1 dayApr10 daysMay71#284Jun56#506Jul43#1,939Aug40#1,998Sep56#518Oct5 days
202561 for the year297 days measured447th of 2,681 in the world
JannoneFeb1 dayMar65#786Apr71#353May71#270Jun53#1,264Jul52#1,423Aug46#1,720Sep47#1,085Oct57#437Nov67#480Dec73#480
2024too few days for a mean (a year needs 257)15 days measured
JannoneFeb1 dayMar3 daysAprnoneMay4 daysJunnoneJulnoneAug4 daysSepnoneOctnoneNov2 daysDec1 day
2023too few days for a mean (a year needs 256)15 days measured
JanFebMarAprMayJunJul15 daysAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Tepic'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 Tepic 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

25 months
MonthWhy
Oct 20265 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitors, 5 with readings for part of the day (a day needs 18 hours).
Apr 202610 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
Mar 20261 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Feb 2026No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20251 of 28 days measured; a month needs 20. The others: 27 with under 18 hours of readings or readings that failed our checks.
Jan 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 20241 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 20242 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Oct 2024No day measured. The others: 31 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 20244 of 31 days measured; a month needs 22. The others: 27 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 20244 of 31 days measured; a month needs 22. The others: 27 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 20243 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Feb 20241 of 29 days measured; a month needs 21. The others: 1 missing from OpenAQ's archive, 27 with under 18 hours of readings or readings that failed our checks.
Jan 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 202315 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 4 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.

Tepic's worst months

MonthUS AQIDays measuredWorld rank
December 2025 7320.7 µg/m³31 of 31480thof 3,006
May 2026 7120.0 µg/m³30 of 31284thof 2,874
May 2025 7119.9 µg/m³31 of 31270thof 2,826
April 2025 7119.8 µg/m³30 of 30353rdof 2,951
November 2025 6717.7 µg/m³30 of 30480thof 2,715
March 2025 6516.8 µg/m³23 of 31786thof 2,862

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.

Tepic's worst days

DayUS AQI
1 May 2024 10838.5 µg/m³
24 Apr 2025 9935.1 µg/m³
13 May 2026 9633.4 µg/m³
2 May 2024 9030.3 µg/m³
14 Apr 2025 9029.8 µg/m³
15 May 2025 8828.7 µg/m³
25 Dec 2025 8728.5 µg/m³
11 May 2025 8628.1 µg/m³
27 Nov 2025 8527.6 µg/m³
31 Dec 2025 8527.3 µg/m³

Daily means, the highest since 12 Jul 2023; 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, Tepic, Mexico, 12 Jul 2023 – 9 Oct 2026. Monitor data from Sinaica Mexico via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/mx/tepic/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.

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

Updated 2026-10-12 17:07 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).