SmogRank / Spain / Navarre / Tudela

Tudela, month by month

Tudela has a measured daily mean on 560 days since 11 January 2023. Its worst month was February 2025, at 55 US AQI (11.5 µg/m³), 1,052nd of 2,633 cities on that month's world ranking. Its cleanest was May 2024, at 18 US AQI (3.3 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 200)29 days measured
Jan41#1,675Feb5 daysMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSep1 dayOctnone
202541 for the year294 days measured1,957th of 2,681 in the world
Jan53#999Feb55#1,052Mar32#2,329Apr31#2,417May31#2,096Jun20 daysJul36#2,170Aug52#1,329Sep27#2,690Oct41#1,079Nov31#2,302Dec21 days
2024too few days for a mean (a year needs 257)193 days measured
Jan1 dayFeb44#1,112Mar11 daysApr27#2,029May18#2,544Jun27#2,253Jul10 daysAug6 daysSepnoneOct13 daysNov52#974Dec53#866
2023too few days for a mean (a year needs 256)44 days measured
Jan5 daysFeb18 daysMar17 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Tudela'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 Tudela 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

29 months
MonthWhy
Oct 2026No day measured. The others: 4 with no readings from the monitors, 7 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks.
Sep 20261 of 30 days measured; a month needs 21. The others: 4 with no readings from the monitors, 25 with readings for part of the day (a day needs 18 hours).
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20265 of 28 days measured; a month needs 20. The others: 23 with under 18 hours of readings or readings that failed our checks.
Dec 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 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202413 of 31 days measured; a month needs 22. The others: 18 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 20246 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Jul 202410 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Mar 202411 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Jan 20241 of 31 days measured; a month needs 22. The others: 30 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 20231 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Mar 202317 of 31 days measured; a month needs 22. The others: 3 missing from OpenAQ's archive, 11 with under 18 hours of readings or readings that failed our checks.
Feb 202318 of 28 days measured; a month needs 20. The others: 7 missing from OpenAQ's archive, 3 with under 18 hours of readings or readings that failed our checks.
Jan 20235 of 31 days measured; a month needs 22. The others: 2 missing from OpenAQ's archive, 14 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.

Tudela's worst months

MonthUS AQIDays measuredWorld rank
February 2025 5511.5 µg/m³21 of 281,052ndof 2,633
December 2024 5310.2 µg/m³26 of 31866thof 2,616
January 2025 5310.0 µg/m³28 of 31999thof 2,474
August 2025 529.6 µg/m³31 of 311,329thof 2,901
November 2024 529.4 µg/m³26 of 30974thof 2,624
February 2024 448.0 µg/m³28 of 291,112thof 2,486

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.

Tudela's worst days

DayUS AQIEpisode
17 Feb 2023 10938.9 µg/m³Spain, France and Portugal, February 2023
18 Feb 2023 9532.6 µg/m³Spain, France and Portugal, February 2023
2 Jul 2025 9432.0 µg/m³–
19 Feb 2023 8627.7 µg/m³Spain, France and Portugal, February 2023
20 Feb 2025 8527.1 µg/m³–
21 Feb 2025 8125.4 µg/m³–
18 Dec 2024 8024.9 µg/m³–
16 Feb 2023 7823.4 µg/m³Spain, France and Portugal, February 2023
17 Aug 2025 7723.0 µg/m³–
7 Apr 2024 7622.6 µg/m³–

Daily means, the highest since 11 Jan 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, Tudela, Spain, 11 Jan 2023 – 24 Sep 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/tudela/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.

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

Updated 2026-10-12 21:07 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).