SmogRank / Lithuania / Vilnius / Vilnius

Vilnius, month by month

Vilnius has a measured daily mean on 691 days since 12 January 2023. Its worst month was May 2024, at 61 US AQI (14.2 µg/m³), 320th of 2,684 cities on that month's world ranking. Its cleanest was August 2025, at 39 US AQI (7.1 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)88 days measured
JannoneFeb1 dayMar3 daysApr19 daysMay5 daysJun10 daysJul17 daysAug16 daysSep12 daysOct5 days
2025too few days for a mean (a year needs 256)184 days measured
Jan17 daysFeb9 daysMar16 daysApr49#1,531May14 daysJun43#1,868Jul49#1,560Aug39#2,132Sep12 daysOct18 daysNovnoneDec1 day
2024too few days for a mean (a year needs 257)246 days measured
Jan58#620Feb52#688Mar15 daysApr52#1,033May61#320Jun52#788Jul15 daysAug13 daysSep2 daysOct16 daysNov53#825Dec50#1,076
2023too few days for a mean (a year needs 256)173 days measured
Jan3 daysFeb47#772Mar10 daysAprnoneMay14 daysJun52#821Jul18 daysAug13 daysSep11 daysOct17 daysNov51#845Dec10 days
Each square is a month's mean PM2.5 in US AQI from Vilnius'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 Vilnius 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

32 months
MonthWhy
Oct 20265 of 11 days measured; a month needs 8. The others: 2 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours).
Sep 202612 of 30 days measured; a month needs 21. The others: 7 with readings for part of the day (a day needs 18 hours), 6 with readings left out by our checks, 5 with under 18 hours of readings or readings that failed our checks.
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 202610 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
May 20265 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Apr 202619 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Mar 20263 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Feb 20261 of 28 days measured; a month needs 20. The others: 27 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.
Dec 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Sep 202512 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
May 202514 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Mar 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Feb 20259 of 28 days measured; a month needs 20. The others: 19 with under 18 hours of readings or readings that failed our checks.
Jan 202517 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Oct 202416 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Sep 20242 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Aug 202413 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jul 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Dec 202310 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Oct 202317 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Sep 202311 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks.
Aug 202313 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jul 202318 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
May 202314 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Apr 2023No day measured. The others: 3 missing from OpenAQ's archive, 27 with under 18 hours of readings or readings that failed our checks.
Mar 202310 of 31 days measured; a month needs 22. The others: 10 missing from OpenAQ's archive, 11 with under 18 hours of readings or readings that failed our checks.
Jan 20233 of 31 days measured; a month needs 22. The others: 3 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.

Vilnius's worst months

MonthUS AQIDays measuredWorld rankEpisode
May 2024 6114.2 µg/m³31 of 31320thof 2,684–
January 2024 5812.8 µg/m³30 of 31620thof 2,385Europe, 28 to 31 January 2024
Europe, 8 to 27 January 2024
November 2024 5310.1 µg/m³21 of 30825thof 2,624Eastern Europe, October and November 2024
April 2024 529.9 µg/m³27 of 301,033rdof 2,520Europe, March and April 2024
June 2023 529.8 µg/m³29 of 30821stof 1,603–
February 2024 529.8 µg/m³29 of 29688thof 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.

Vilnius's worst days

DayUS AQIEpisode
12 Mar 2025 17082.1 µg/m³Germany, Poland and 25 more countries, March 2025
13 Mar 2025 16170.4 µg/m³Germany, Poland and 25 more countries, March 2025
8 Mar 2025 15460.4 µg/m³Germany, Poland and 25 more countries, March 2025
9 Mar 2025 14653.9 µg/m³Germany, Poland and 25 more countries, March 2025
10 Mar 2025 10938.7 µg/m³Germany, Poland and 25 more countries, March 2025
2 Apr 2024 10838.4 µg/m³Europe, March and April 2024
16 Mar 2025 10436.7 µg/m³–
27 Oct 2024 9834.1 µg/m³Eastern Europe, October and November 2024
31 Jan 2024 9432.1 µg/m³Europe, 28 to 31 January 2024
7 Jul 2025 9030.1 µg/m³–

Daily means, the highest since 12 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, Vilnius, Lithuania, 12 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/lt/vilnius/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

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

Updated 2026-10-12 18:07 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).