SmogRank / Spain / Valencia / Sagunto
Sagunto, month by month
Sagunto has a measured daily mean on 956 days since 3 January 2023. Its worst month was August 2025, at 55 US AQI (11.5 µg/m³), 894th of 2,901 cities on that month's world ranking. Its cleanest was April 2023, at 12 US AQI (2.1 µg/m³). 2025 averaged 47 US AQI (8.4 µg/m³), against 28 US AQI (5.1 µg/m³) in 2023.
Every month since 2023
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
| Month | Why |
|---|---|
| Oct 2026 | 7 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitors, 3 with readings for part of the day (a day needs 18 hours). |
| Aug 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 1 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| May 2026 | 2 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| Apr 2026 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Feb 2026 | 8 of 28 days measured; a month needs 20. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 19 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 6 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks. |
| Jul 2024 | 12 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Jan 2023 | 17 of 31 days measured; a month needs 22. The others: 12 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.
Sagunto's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| August 2025 | 5511.5 µg/m³ | 894thof 2,901 | – |
| February 2025 | 5310.0 µg/m³ | 1,186thof 2,633 | – |
| December 2025 | 529.8 µg/m³ | 1,380thof 3,006 | – |
| July 2025 | 519.3 µg/m³ | 1,449thof 2,889 | – |
| February 2023 | 509.0 µg/m³ | 734thof 1,129 | Spain, France and Portugal, February 2023 |
| April 2025 | 488.6 µg/m³ | 1,598thof 2,951 | – |
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.
Sagunto's worst days
| Day | US AQI | Episode |
|---|---|---|
| 20 Mar 2025 | 9432.1 µg/m³ | Murcia and Valencia, Spain, March 2025 |
| 14 Jan 2026 | 8829.1 µg/m³ | North-eastern Spain and France, January 2026 |
| 23 Feb 2023 | 8426.9 µg/m³ | Spain, France and Portugal, February 2023 |
| 10 Dec 2025 | 8125.2 µg/m³ | – |
| 30 Oct 2024 | 7923.9 µg/m³ | – |
| 18 Aug 2025 | 7823.8 µg/m³ | – |
| 9 Dec 2025 | 7723.2 µg/m³ | – |
| 12 Dec 2025 | 7722.8 µg/m³ | – |
| 14 Jun 2025 | 7622.7 µg/m³ | – |
| 22 Feb 2023 | 7622.6 µg/m³ | Spain, France and Portugal, February 2023 |
Daily means, the highest since 3 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, Sagunto, Spain, 3 Jan 2023 – 9 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/sagunto/history (accessed 12 Oct 2026).
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.
Sagunto 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).